PKL4119PIPTLA - Ericsson, Inc. - Datasheet.Directory

Key Features

• "THE double P" extended Half-brick

61.5x61x12.7 mm (2.42x2.4x0.5 in)

• Low Output Ripple, 60 mVp-p Typ.

• Parallelable with no external

components

• High efﬁ ciency, typ. 88 % at 1.8 Vout

80A (full) load

• 1500 Vdc input to output isolation,

meets isolation requirements equivalent

to Basic Insulation according to

IEC/EN/UL 60950

• More than 3.7 million hours predicted

MTBF at 90 °C case temperature

DC/DC converter

Input 36-75 Vdc

Output up to 80 A/300 W

PKL 4000 Series

The PKL 4000 Series of high efficiency DC/DC

converters are designed to provide high quality on-

board power solutions in distributed power architectures

used in “Inter-networking” equipment in Wireless and

Wired Communications and Datacom applications.

The PKL 4000 Series is an extended version of the

industry standard half brick footprint that has been

enhanced to include two additional output pins for

connection reliability and higher output current. The

PKL Series uses the most advanced patented topology

and synchronous rectification technology and achieves

a typical efficiency up to 92%. This product features

fast dynamic response times and low output ripple,

which are important parameters when supplying low-

voltage logics. Ericsson’s PKL 4000 Series addresses

the emerging telecom market for applications in the

multi-service network by specifying the input voltage

range in accordance with ETSI specifications. Included

as standard features are over-voltage protection, under-

voltage protection, over-temperature protection, soft-

start, short circuit protection, remote sense, remote

on/off, and industry standard output trim adjustment.

The PKL 4000 Series also offers the flexibility of

using optional heatsinks when needed, enabling

reduced airflow, extended reliability, and higher

ambient temperature operation. These converters are

manufactured in highly automated manufacturing

lines and meet world-class quality levels.

Ericsson Power Modules is an ISO 9001 (since 1991)

and ISO14001 certified Supplier.

Datasheet

2 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Characteristics Conditions min typ max Unit

VIInput voltage range 1) 36 75 Vdc

VIoff Turn-off input voltage Ramping from higher

voltage 30 32.5 35 Vdc

VIon Turn-on input voltage Ramping from lower

voltage 32 34.4 36 Vdc

CIInput capacitance 2.18 µF

IIac Reﬂ ected ripple current 5 Hz to 20 MHz,

VI = 53 V 10 Ap-p

PII Input idling power Io= 0, VI = 53 V 4.14 4.46 W

PRC Input standby power

(turned off with RC) VI = 53 V, RC activated 0.055 W

Characteristics min max Unit

Operating Case Temperature PKL

PKL4118B PIT

-40

+100

+110 ˚C

TSStorage temperature -40 +125 ˚C

VIInput voltage -0.5 +80 Vdc

VISO Isolation voltage (input to output test voltage) 1500 Vdc

Vtr Input over voltage condition (100 ms) 100 Vdc

VRC Remote Control Voltage, pin 2 -0.5 15 Vdc

Vadj Maximum input, pin 6. (measured from pin 1) -0.5 2xVoVdc

Input TC <TC max unless otherwise speciﬁ ed

Note:

Stress in excess of Absolute Maximum Ratings may cause permanent damage. Absolute Maximum Ratings, sometimes referred to as

no destruction limits, are normally tested with one parameter at a time exceeding the limits of Output data or Electrical Characteristics. If

exposed to stress above these limits, function and performance may degrade in an unspeciﬁ ed manner.

Absolute Maximum Ratings

Characteristics

Random Vibration IEC 68-2-34Ed

Frequency

Spectral density

Duration

10 ... 500 Hz

0.025 g2/Hz

10 min each direction

Sinusoidal

Vibration IEC 68-2-6 Fc

Frequency

Amplitude

Acceleration

Number of cycles

10 ... 500 Hz

0.75 mm

10 g

10 in each axis

Shock

(half sinus) IEC 68-2-27 Ea

Peak acceleration

Duration

100 g

6 ms

Temperature

change IEC 68-2-14 Na

Temperature

Number of cycles

-40 ... +100 ˚C

300

Heat/Humidity IEC 68-2-3 Ca

Temperature

Humidity

Duration

+85 ˚C

85 % RH

1000 hours

Solder heat

stability IEC 68-2-20 1A Temperature, solder

Duration

260 ˚C

10 ...13 s

Resistance to

cleaning solvents

IEC 68-2-45 XA

Method 2

Water

Isopropyl alcohol

Glycol ether

+55 ±5 ˚C

+35 ±5 ˚C

Cold (in operation) IEC 68-2-1 AdTemperature

Duration

-45 ˚C

2 h

Storage test IEC 68-2-2 BaTemperature

Duration

+125 ˚C

1000 h

Environmental Characteristics

Safety

The PKL 4000 series DC/DC converters

are designed in accordance with safety

standards IEC/EN/UL 60 950, Safety of

Information Technology Equipment.

The PKL 4000 series DC/DC converters

are UL 60 950 recognized and certified

in accordance with EN 60 950.

The DC/DC converter should be

installed in the end-use equipment, in

accordance with the requirements of the

ultimate application. The input source

must be isolated by minimum Basic

Insulation from the primary circuit in

accordance with IEC/EN/UL 60 950.

If the input voltage to the DC/DC

converter is 75 V dc or less, then the

output remains SELV (Safety Extra Low

Voltage) under normal and abnormal

operating conditions. Single fault

testing in the input power supply circuit

should be performed with the DC/DC

converter connected to demonstrate that

the input voltage does not exceed 75 V

dc. If the input power source circuit is

a DC power system, the source may be

treated as a TNV2 circuit and testing

has demonstrated compliance with

SELV limits and isolation requirements

equivalent to Basic Insulation in

accordance with IEC/EN/UL 60 950.

It is recommended that a fast blow fuse

with a rating twice the maximum input

current per selected product be used at

the input of each DC/DC converter. If a

fault occurs in the converter that imposes

a short circuit on the input source, this

fuse will provide the following functions:

• Isolate the faulty DC/DC converter

from the input power source not to

affect the operation of other parts of

the system.

• Protect the distribution wiring from

excessive current and power loss thus

preventing hazardous overheating.

The galvanic isolation is verified in an

electric strength test. The test voltage

(VISO) between input and output is 1500

Vdc for 60 seconds. Leakage current is

less than 1µA at nominal input voltage.

The flammability rating for all

construction parts of the DC/DC

converter meets UL 94V-0.

3 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Connections Fundamental Circuit Diagram

Weight

PKL 4000 Series, 110 g

Pins

Material: Brass Alloy

Plating: Tin/Lead over Nickel

Mechanical Data

Pin Designation Function

1 - In Negative Input

2 Case Connected to baseplate

3 RC Remote Control

4 + In Positive Input

5, 10 - Out Negative Output

6 - Sen Negative Sense

adj Output voltage adjust

8 + Sen Positive Sense

9, 11 + Out Positive Output

For more information about the functions see Operating Information

Primary

Isolated

Feedback

Control

Secondary

Control

61.5 [2.42] OVERALL LENGTH

51.86[2.042]

10.16

[0.400]

50.8

[2.00]

35.56

[1.400]

25.40

[1.000]

12.72

[0.50]

5.1

[0.20]

-INPUT

CASE

REMOTE

ON/OFF

+INPUT

61.0

[2.40]

OVERALL

WIDTH

4.82

[0.19]

-OUTPUT

-SENSE

TRIM

+SENSE

+OUTPUT

3.47

[0.137]

8.42

[0.332]

12.72

[0.50]

10.16

[0.400]

17.78

[0.700]

25.40

[1.000]

35.56

[1.400]

5.3

[0.21]

EXT.

12.7

[0.50]

OVERALL

HEIGHT

1.02 [0.040] DIA. PLATED

BRASS PINS

TYPICAL 7PL

ACES

2.06[0.080] DIA. PLATED

BRASS PINS

TYPICAL 4 PLACES

M3X[0.5]MOU

NTING INSERTS

TYPICAL 4P

LACES

MAX. SCREW TORQUE: 0,44 N-M [3.9 IN-LBS].

Dimensions: mm [inches]

Tolerances:.x±.5[.xx±0.02]

.xx ± .25[

.xxx±0.010]

BOTTOM VIEW

+INPUT

REMOTE

ON/OFF

CASE

-INPUT

+OUTPUT

+SENSE

TRIM

-SENSE

-OUTPUT

TOP VIEW

FOOTPRINT

2.43 [0.096] 4 places

1.42 [0.056] 7 places

3.00 [0.12] 4 places

4 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Characteristics Conditions

Output Unit

min typ max

VOi

Output voltage initial setting

and accuracy TC = +25 °C, VI = 53 V, IO = IOmax 1.77 1.8 1.83 V

Output adjust range IO = IOmax 1.44 2.00 V

Output voltage tolerance band IO = 0.1...1 x IOmax 1.746 1.854 V

Idling voltage IO = 0 1.746 1.900 V

Line regulation IO = IOmax 515mV

Load regulation VI = 53 V, IO = 0.01...1 x IOmax 515mV

Vtr

Load transient

voltage deviation

IO = 0.1...1 x IOmax , VI = 53 V

Load step = 0.25 x IOmax di/dt = 1A/µs

+200

-200 mV

ttr Load transient recovery time IO = 0.1...1 x IOmax , VI = 53

loadstep = 0.25x IOmax

220 µs

trRamp-up time IO = 0.1...0.9 x VO12 16 ms

tsStart-up time From VI connected to VO = 0.9 x VOI 16 20 ms

IOOutput current 0 60 A

POmax Max output power At VO = VOnom 108 W

Ilim Current limit threshold TC < TCmax 65.2 66.5 68.5 A

Isc Short circuit current TC = 25 °C 69 70 71 A

VOac Output ripple & noise IO = IOmax , f < 4-20 MHz 100 mVp-p

SVR Supply voltage rejection (ac) f = 100 Hz sinewave , 1 Vp-p , VI = 53 V 53 dB

OVP Over voltage protection VI = 53 V 2.51 V

TC = –40…+100°C, V

I = 36 ...75V, sense pins connected to output pins unless otherwise speciﬁ ed.

PKL 4118 PIT Output

Miscellaneous

Characteristics Conditions min typ max Unit

ηEfﬁ ciency - 50% load TC = +25 °C, VI = 53 V, IO = 0.5 x IOmax 89 %

ηEfﬁ ciency - 100% load TC = +25 °C, VI = 53 V, IO = IOmax 86.5 %

PdPower Dissipation TC = +25 °C, VI = 53 V, IO = IOmax 18 W

fsSwitching frequency IO = 0 ... 1.0 x IOmax 150 kHz

IImax Maximum input current 1.1 x VOi x IOmax / η / VImin 3.9 A

TC = –40…+100°C, V

I = 36 ...75V, sense pins connected to output pins unless otherwise speciﬁ ed.

5 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Efﬁ ciency

Output Characteristic

Output Current Derating

Power Dissipation

PKL 4118 PIT Typical Characteristics

Start-Up Turn-Off

Start-up at IO = 60 A resistive load at TC = +25 °C,

Vin = 53 V. Start enabled by connecting Vin.

Top trace: output voltage (1 V/div.).

Bottom trace: input voltage (20 V/div.).

Time scale: 20 ms/div.

Output voltage vs. load current at TC = +25 °C, Vin = 53 V.

Available load current vs. ambient air temperature and

airﬂ ow at Vin = 53 V.

Efﬁ ciency vs. load current and input voltage at TC = +25 °C

020406080

[A]

[%]

36 V

48 V

53 V

75 V

0 20406080100

[°C]

[A]

2.0 m/s (400 lfm)

1.5 m/s (300 lfm)

1.0 m/s (200 lfm)

0.5 m/s (100 lfm)

Nat. Conv.

3.0 m/s (600 lfm)

2.5 m/s (500 lfm)

020406080

1.70

1.75

1.80

1.85

1.90

[A]

[V]

0 20406080

[A]

[W]

36 V

48 V

53 V

75 V

Dissipated power vs. load current and input voltage at

TC = +25 °C

Turn-off at IO = 60 A resistive load at TC = +25 °C,

Vin = 53 V. Turn-off enabled by disconnecting Vin.

Trace: output voltage (1 V/div.).

Time scale: 5 ms/div.

6 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Output Ripple Transient

PKL 4118 PIT Typical Characteristics

Output voltage ripple (50 mV/div.) at TC = +25 °C

Vin = 53 V, IO = 60 A resistive load.

Band width = 20 MHz.

Time scale: 2 µs/div.

Output voltage response to load current step-change

(15-45-15 A) at TC = +25 °C, Vin = 53 V.

Trace: output voltage (420 mV/div.).

dI/dt = 4 A/µs

Time scale: 100 µs/div.

Output Voltage Adjust

Output voltage adjust resistor value vs.

percentage change.

0 2 4 6 8 101214161820

250

200

150

100

[%]

[kΩ]

VOincrease

VOdecrease

Output Voltage Adjust

The resistor value for an adjusted output voltage is

calculated by using the following equations:

Output Voltage Adjust Upwards, Increase:

Radj= [(VO(100+ ∆%)/(1.225∆% ))- (100+2∆%)/∆% ] kOhm

Output Voltage Adjust Downwards, Decrease:

Radj= [100 / ∆%-2 ] kOhm

Ex. Increase 5% to: 1.89 Vdc

(1.8(100+5)/(1.225*5)-(100+2*5)/5 = 8.8 kOhm

Ex. Decrease 5% to: 1.71 Vdc

(100/5)-2= 18 kOhm

7 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Characteristics Conditions

Output Unit

min typ max

VOi

Output voltage initial setting

and accuracy TC = +25 °C, VI = 53 V, IO = IOmax 1.77 1.8 1.83 V

Output adjust range IO = IOmax 1.44 2.00 V

Output voltage tolerance band IO = 0.1...1 x IOmax 1.746 1.854 V

Idling voltage IO = 0 1.746 1.900 V

Line regulation IO = IOmax 515mV

Load regulation VI = 53 V, IO = 0.01...1 x IOmax 515mV

Vtr

Load transient

voltage deviation

IO = 0.1...1 x IOmax , VI = 53 V

Load step = 0.25 x IOmax di/dt = 1A/µs

+200

-200 mV

ttr Load transient recovery time IO = 0.1...1 x IOmax , VI = 53

loadstep = 0.25x IOmax

220 µs

trRamp-up time IO = 0.1...0.9 x VO16 20 ms

tsStart-up time From VI connected to VO = 0.9 x VOI 20 30 ms

IOOutput current 0 80 A

POmax Max output power At VO = VOnom 144 W

Ilim Current limit threshold TC < TCmax 92.5 93.0 93.5 A

Isc Short circuit current TC = 25 °C 96 97 98 A

VOac Output ripple & noise IO = IOmax , f < 4-20 MHz 100 mVp-p

SVR Supply voltage rejection (ac) f = 100 Hz sinewave , 1 Vp-p , VI = 53 V 53 dB

OVP Over voltage protection VI = 53 V 2.51 V

TC = –40…+110°C, V

I = 36 ...75V, sense pins connected to output pins unless otherwise speciﬁ ed.

PKL 4118B PIT Output

Miscellaneous

Characteristics Conditions min typ max Unit

ηEfﬁ ciency - 50% load TC = +25 °C, VI = 53 V, IO = 0.5 x IOmax 88 %

ηEfﬁ ciency - 100% load TC = +25 °C, VI = 53 V, IO = IOmax 84.5 %

PdPower Dissipation TC = +25 °C, VI = 53 V, IO = IOmax 33.6 W

fsSwitching frequency IO = 0 ... 1.0 x IOmax 150 kHz

IImax Maximum input current 1.1 x VOi x IOmax / η / VImin 5.2 A

TC = –40…+110°C, V

I = 36 ...75V, sense pins connected to output pins unless otherwise speciﬁ ed.

8 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Efﬁ ciency

Output Characteristic

Output Current Derating

Power Dissipation

PKL 4118B PIT Typical Characteristics

Start-Up Turn-Off

Start-up at IO = 80 A resistive load at TC = +25 °C,

Vin = 53 V. Start enabled by connecting Vin.

Top trace: output voltage (1 V/div.).

Bottom trace: input voltage (20 V/div.).

Time scale: 20 ms/div.

Output voltage vs. load current at TC = +25 °C, Vin = 53 V.

Available load current vs. ambient air temperature and

airﬂ ow at Vin = 53 V.

Efﬁ ciency vs. load current and input voltage at TC = +25 °C

020406080100

[A]

[%]

36 V

48 V

53 V

75 V

0 22446688110

100

[°C]

[A]

2.0 m/s (400 lfm)

1.5 m/s (300 lfm)

1.0 m/s (200 lfm)

0.5 m/s (100 lfm)

Nat. Conv.

3.0 m/s (600 lfm)

2.5 m/s (500 lfm)

020406080100

1.70

1.75

1.80

1.85

1.90

[A]

[V]

020

40 60 80 100

[A]

[W]

36 V

48 V

53 V

75 V

Dissipated power vs. load current and input voltage at

TC = +25 °C

Turn-off at IO = 80 A resistive load at TC = +25 °C,

Vin = 53 V. Turn-off enabled by disconnecting Vin.

Trace: output voltage (1 V/div.).

Time scale: 1 ms/div.

9 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Output Ripple Transient

PKL 4118B PIT Typical Characteristics

Output voltage ripple (100 mV/div.) at TC = +25 °C

Vin = 53 V, IO = 80 A resistive load.

Band width = 20 MHz.

Time scale: 2 µs / div.

Output voltage response to load current step-change

(20-60-20 A) at TC = +25 °C, Vin = 53 V.

Trace: output voltage (420 mV/div.).

dI/dt = 4 A/µs

Time scale: 50 µs/div.

Output Voltage Adjust

Output voltage adjust resistor value vs.

percentage change.

0 2 4 6 8 101214161820

250

200

150

100

[%]

[kΩ]

VOincrease

VOdecrease

Output Voltage Adjust

The resistor value for an adjusted output voltage is calcu-

lated by using the following equations:

Output Voltage Adjust Upwards, Increase:

Radj= [(VO(100+ ∆%)/(1.225∆% ))- (100+2∆%)/∆% ] kOhm

Output Voltage Adjust Downwards, Decrease:

Radj= [100 / ∆%-2 ] kOhm

Ex. Increase 5% to: 1.89 Vdc

(1.8(100+5)/(1.225*5)-(100+2*5)/5 = 8.8 kOhm

Ex. Decrease 5% to: 1.71 Vdc

(100/5)-2= 18 kOhm

10 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Characteristics Conditions

Output Unit

min typ max

VOi

Output voltage initial setting

and accuracy TC = +25 °C, VI = 53 V, IO = IOmax 2.45 2.5 2.55 V

Output adjust range IO = IOmax 2.00 2.75 V

Output voltage tolerance band IO = 0.1...1 x IOmax 2.42 2.58 V

Idling voltage IO = 0 2.38 2.63 V

Line regulation IO = IOmax 515mV

Load regulation VI = 53 V, IO = 0.01...1 x IOmax 515mV

Vtr

Load transient

voltage deviation

IO = 0.1...1 x IOmax , VI = 53 V

Load step = 0.25 x IOmax di/dt = 1A/µs

+200

-200 mV

ttr Load transient recovery time IO = 0.1...1 x IOmax , VI = 53

loadstep = 0.25x IOmax

200 µs

trRamp-up time IO = 0.1...0.9 x VO30 ms

tsStart-up time From VI connected to VO = 0.9 x VOI 20 30 ms

IOOutput current 0 50 A

POmax Max output power At VO = VOnom 125 W

Ilim Current limit threshold TC < TCmax 51 54.5 62 A

Isc Short circuit current TC = 25 °C 55 69 A

VOac Output ripple & noise IO = IOmax , f < 4-20 MHz 80 150 mVp-p

SVR Supply voltage rejection (ac) f = 100 Hz sinewave , 1 Vp-p , VI = 53 V 50 dB

OVP Over voltage protection VI = 53 V 3.0 4.0 V

TC = –40…+100°C, V

I = 36 ...75V, sense pins connected to output pins unless otherwise speciﬁ ed.

PKL 4119 PIT Output

Miscellaneous

Characteristics Conditions min typ max Unit

ηEfﬁ ciency - 50% load TC = +25 °C, VI = 53 V, IO = 0.5 x IOmax 90 %

ηEfﬁ ciency - 100% load TC = +25 °C, VI = 53 V, IO = IOmax 89 %

PdPower Dissipation TC = +25 °C, VI = 53 V, IO = IOmax 15.4 W

fsSwitching frequency IO = 0 ... 1.0 x IOmax 200 kHz

IImax Maximum input current 1.1 x VOi x IOmax / η / VImin 4.3 A

TC = –40…+100°C, V

I = 36 ...75V, sense pins connected to output pins unless otherwise speciﬁ ed.

11 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Efﬁ ciency

Output Characteristic

Output Current Derating

Power Dissipation

PKL 4119 PIT Typical Characteristics

Start-Up Turn-Off

Start-up at IO = 80 A resistive load at TC = +25 °C,

Vin = 53 V. Start enabled by connecting Vin.

Top trace: output voltage (1 V/div.).

Bottom trace: input voltage (20 V/div.).

Time scale: 20 ms/div.

Output voltage vs. load current at TC = +25 °C, Vin = 53 V.

Available load current vs. ambient air temperature and

airﬂ ow at Vin = 53 V.

Efﬁ ciency vs. load current and input voltage at TC = +25 °C

0 102030405060

[A]

[%]

36 V

48 V

53 V

75 V

020

40 60 80 100

[°C]

[A]

2.0 m/s (400 lfm)

1.5 m/s (300 lfm)

1.0 m/s (200 lfm)

0.5 m/s (100 lfm)

Nat. Conv.

3.0 m/s (600 lfm)

2.5 m/s (500 lfm)

0 102030405060

2.0

2.2

2.4

2.6

2.8

3.0

[A]

[V]

0 102030405060

[A]

[W]

36 V

48 V

53 V

75 V

Dissipated power vs. load current and input voltage at

TC = +25 °C

Turn-off at IO = 80 A resistive load at TC = +25 °C,

Vin = 53 V. Turn-off enabled by disconnecting Vin.

Trace: output voltage (1 V/div.).

Time scale: 5 ms/div.

12 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Output Ripple Transient

PKL 4119 PIT Typical Characteristics

Output voltage ripple (50 mV/div.) at TC = +25 °C

Vin = 53 V, IO = 80 A resistive load.

Band width = 20 MHz.

Time scale: 2 µs / div.

Output voltage response to load current step-change

(20-60-20 A) at TC = +25 °C, Vin = 53 V.

Trace: output voltage (420 mV/div.).

dI/dt = 4 A/µs

Time scale: 100 µs/div.

Output Voltage Adjust

Output voltage adjust resistor value vs.

percentage change.

0 2 4 6 8 101214161820

250

200

150

100

[%]

[kΩ]

VOincrease

VOdecrease

Output Voltage Adjust

The resistor value for an adjusted output voltage is calcu-

lated by using the following equations:

Output Voltage Adjust Upwards, Increase:

Radj= [(VO(100+ ∆%)/(1.225∆% ))- (100+2∆%)/∆% ] kOhm

Output Voltage Adjust Downwards, Decrease:

Radj= [100 / ∆%-2 ] kOhm

Ex. Increase 5% to: 2.625 Vdc

(2.5(100+5)/(1.225*5)-(100+2*5)/5 = 21 kOhm

Ex. Decrease 5% to: 2.375 Vdc

(100/5)-2= 18 kOhm

13 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Characteristics Conditions

Output Unit

min typ max

VOi

Output voltage initial setting

and accuracy TC = +25 °C, VI = 53 V, IO = IOmax 2.45 2.5 2.55 V

Output adjust range IO = IOmax 2.00 2.75 V

Output voltage tolerance band IO = 0.1...1 x IOmax 2.42 2.58 V

Idling voltage IO = 0 2.38 2.63 V

Line regulation IO = IOmax 515mV

Load regulation VI = 53 V, IO = 0.01...1 x IOmax 515mV

Vtr

Load transient

voltage deviation

IO = 0.1...1 x IOmax , VI = 53 V

Load step = 0.25 x IOmax di/dt = 1A/µs

+200

-200 mV

ttr Load transient recovery time IO = 0.1...1 x IOmax , VI = 53

loadstep = 0.25x IOmax

200 µs

trRamp-up time IO = 0.1...0.9 x VO30 ms

tsStart-up time From VI connected to VO = 0.9 x VOI 20 30 ms

IOOutput current 0 60 A

POmax Max output power At VO = VOnom 150 W

Ilim Current limit threshold TC < TCmax 61 64.5 72 A

Isc Short circuit current TC = 25 °C 65 79 A

VOac Output ripple & noise IO = IOmax , f < 4-20 MHz 80 150 mVp-p

SVR Supply voltage rejection (ac) f = 100 Hz sinewave , 1 Vp-p , VI = 53 V 50 dB

OVP Over voltage protection VI = 53 V 3.0 4.0 V

TC = –40…+100°C, V

I = 36 ...75V, sense pins connected to output pins unless otherwise speciﬁ ed.

PKL 4119A PIT Output

Miscellaneous

Characteristics Conditions min typ max Unit

ηEfﬁ ciency - 50% load TC = +25 °C, VI = 53 V, IO = 0.5 x IOmax 89.5 %

ηEfﬁ ciency - 100% load TC = +25 °C, VI = 53 V, IO = IOmax 88.5 %

PdPower Dissipation TC = +25 °C, VI = 53 V, IO = IOmax 19.5 W

fsSwitching frequency IO = 0 ... 1.0 x IOmax 200 kHz

IImax Maximum input current 1.1 x VOi x IOmax / η / VImin 5.2 A

TC = –40…+100°C, V

I = 36 ...75V, sense pins connected to output pins unless otherwise speciﬁ ed.

14 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Efﬁ ciency

Output Characteristic

Output Current Derating

Power Dissipation

PKL 4119A PIT Typical Characteristics

Start-Up Turn-Off

Start-up at IO = 50 A resistive load at TC = +25 °C,

Vin = 53 V. Start enabled by connecting Vin.

Top trace: output voltage (1 V/div.).

Bottom trace: input voltage (20 V/div.).

Time scale: 20 ms/div.

Output voltage vs. load current at TC = +25 °C, Vin = 53 V.

Available load current vs. ambient air temperature and

airﬂ ow at Vin = 53 V.

Efﬁ ciency vs. load current and input voltage at TC = +25 °C

0 20406080

[A]

[%]

36 V

48 V

53 V

75 V

0 20406080100

[°C]

[A]

2.0 m/s (400 lfm)

1.5 m/s (300 lfm)

1.0 m/s (200 lfm)

0.5 m/s (100 lfm)

Nat. Conv.

3.0 m/s (600 lfm)

2.5 m/s (500 lfm)

020406080

2.0

2.2

2.4

2.6

2.8

3.0

[A]

[V]

0 20406080

[A]

[W]

36 V

48 V

53 V

75 V

Dissipated power vs. load current and input voltage at

TC = +25 °C

Turn-off at IO = 50 A resistive load at TC = +25 °C,

Vin = 53 V. Turn-off enabled by disconnecting Vin.

Trace: output voltage (1 V/div.).

Time scale: 5 ms/div.

15 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Output Ripple Transient

PKL 4119A PIT Typical Characteristics

Output voltage ripple (50mV/div.) at TC = +25 °C

Vin = 53 V, IO = 50 A resistive load.

Band width = 20 MHz.

Time scale: 2 µs / div.

Output voltage response to load current step-change

(12.5-37.5-12.5 A) at TC = +25 °C, Vin = 53 V.

Trace: output voltage (420 mV/div.).

dI/dt = 4 A/µs

Time scale: 50 µs/div.

Output Voltage Adjust

Output voltage adjust resistor value vs.

percentage change.

0 2 4 6 8 101214161820

250

200

150

100

[%]

[kΩ]

VOincrease

VOdecrease

Output Voltage Adjust

The resistor value for an adjusted output voltage is calcu-

lated by using the following equations:

Output Voltage Adjust Upwards, Increase:

Radj= [(VO(100+ ∆%)/(1.225∆% ))- (100+2∆%)/∆% ] kOhm

Output Voltage Adjust Downwards, Decrease:

Radj= [100 / ∆%-2 ] kOhm

Ex. Increase 5% to: 2.625 Vdc

(2.5(100+5)/(1.225*5)-(100+2*5)/5 = 21 kOhm

Ex. Decrease 5% to: 2.375 Vdc

(100/5)-2= 18 kOhm

16 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Characteristics Conditions

Output Unit

min typ max

VOi

Output voltage initial setting

and accuracy TC = +25 °C, VI = 53 V, IO = IOmax 2.45 2.5 2.55 V

Output adjust range IO = IOmax 2.00 2.75 V

Output voltage tolerance band IO = 0.1...1 x IOmax 2.42 2.58 V

Idling voltage IO = 0 2.45 2.55 V

Line regulation IO = IOmax 515mV

Load regulation VI = 53 V, IO = 0.01...1 x IOmax 515mV

Vtr

Load transient

voltage deviation

IO = 0.1...1 x IOmax , VI = 53 V

Load step = 0.25 x IOmax di/dt = 1A/µs

+120

-120 mV

ttr Load transient recovery time IO = 0.1...1 x IOmax , VI = 53

loadstep = 0.25x IOmax

100 µs

trRamp-up time IO = 0.1...0.9 x VO20 40 ms

tsStart-up time From VI connected to VO = 0.9 x VOI 20 40 ms

IOOutput current 0 80 A

POmax Max output power At VO = VOnom 200 W

Ilim Current limit threshold TC < TCmax 92 97 A

Isc Short circuit current TC = 25 °C 95 98 A

VOac Output ripple & noise IO = IOmax , f < 4-20 MHz 110 mVp-p

SVR Supply voltage rejection (ac) f = 100 Hz sinewave , 1 Vp-p , VI = 53 V 50 dB

OVP Over voltage protection VI = 53 V 3.0 4.0 V

TC = –40…+100°C, V

I = 36 ...75V, sense pins connected to output pins unless otherwise speciﬁ ed.

PKL 4219A PIT Output

Miscellaneous

Characteristics Conditions min typ max Unit

ηEfﬁ ciency - 50% load TC = +25 °C, VI = 53 V, IO = 0.5 x IOmax 90 %

ηEfﬁ ciency - 100% load TC = +25 °C, VI = 53 V, IO = IOmax 86.5 %

PdPower Dissipation TC = +25 °C, VI = 53 V, IO = IOmax 32.5 W

fsSwitching frequency IO = 0 ... 1.0 x IOmax 180 kHz

IImax Maximum input current 1.1 x VOi x IOmax / η / VImin 7.0 A

TC = –40…+100°C, V

I = 36 ...75V, sense pins connected to output pins unless otherwise speciﬁ ed.

17 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Efﬁ ciency

Output Characteristic

Output Current Derating

Power Dissipation

PKL 4219A PIT Typical Characteristics

Start-Up Turn-Off

Start-up at IO = 60 A resistive load at TC = +25 °C,

Vin = 53 V. Start enabled by connecting Vin.

Top trace: output voltage (1 V/div.).

Bottom trace: input voltage (20 V/div.).

Time scale: 20 ms/div.

Output voltage vs. load current at TC = +25 °C, Vin = 53 V.

Available load current vs. ambient air temperature and

airﬂ ow at Vin = 53 V.

Efﬁ ciency vs. load current and input voltage at TC = +25 °C

0 20406080100

[A]

[%]

36 V

48 V

53 V

75 V

020

40 60 80 100

100

[°C]

[A]

2.0 m/s (400 lfm)

1.5 m/s (300 lfm)

1.0 m/s (200 lfm)

0.5 m/s (100 lfm)

Nat. Conv.

3.0 m/s (600 lfm)

2.5 m/s (500 lfm)

020406080100

2.40

2.45

2.50

2.55

2.60

[A]

[V]

020

40 60 80 100

[A]

[W]

36 V

48 V

53 V

75 V

Dissipated power vs. load current and input voltage at

TC = +25 °C

Turn-off at IO = 60 A resistive load at TC = +25 °C,

Vin = 53 V. Turn-off enabled by disconnecting Vin.

Trace: output voltage (1 V/div.).

Time scale: 5 ms/div.

18 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Output Ripple Transient

PKL 4219A PIT Typical Characteristics

Output voltage ripple (50 mV/div.) at TC = +25 °C

Vin = 53 V, IO = 60 A resistive load.

Band width = 20 MHz.

Time scale: 2 µs / div.

Output voltage response to load current step-change

(15-45-15 A) at TC = +25 °C, Vin = 53 V.

Trace: output voltage (420 mV/div.).

dI/dt = 4 A/µs

Time scale: 50 µs/div.

Output Voltage Adjust

Output voltage adjust resistor value vs.

percentage change.

0 2 4 6 8 101214161820

250

200

150

100

[%]

[kΩ]

VOincrease

VOdecrease

Output Voltage Adjust

The resistor value for an adjusted output voltage is calcu-

lated by using the following equations:

Output Voltage Adjust Upwards, Increase:

Radj= [(VO(100+ ∆%)/(1.225∆% ))- (100+2∆%)/∆% ] kOhm

Output Voltage Adjust Downwards, Decrease:

Radj= [100 / ∆%-2 ] kOhm

Ex. Increase 5% to: 2.625 Vdc

(2.5(100+5)/(1.225*5)-(100+2*5)/5 = 21 kOhm

Ex. Decrease 5% to: 2.375 Vdc

(100/5)-2= 18 kOhm

19 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Characteristics Conditions

Output Unit

min typ max

VOi

Output voltage initial setting

and accuracy TC = +25 °C, VI = 53 V, IO = IOmax 3.25 3.3 3.35 V

Output adjust range IO = IOmax 2.64 3.63 V

Output voltage tolerance band IO = 0.1...1 x IOmax 3.2 3.4 V

Idling voltage IO = 0 3.2 3.4 V

Line regulation IO = IOmax 515mV

Load regulation VI = 53 V, IO = 0.01...1 x IOmax 515mV

Vtr

Load transient

voltage deviation

IO = 0.1...1 x IOmax , VI = 53 V

Load step = 0.25 x IOmax di/dt = 1A/µs

+250

-250 mV

ttr Load transient recovery time IO = 0.1...1 x IOmax , VI = 53

loadstep = 0.25x IOmax

200 µs

trRamp-up time IO = 0.1...0.9 x VO10 30 ms

tsStart-up time From VI connected to VO = 0.9 x VOI 10 30 ms

IOOutput current 0 50 A

POmax Max output power At VO = VOnom 165 W

Ilim Current limit threshold TC < TCmax 51 54.5 62 A

Isc Short circuit current TC = 25 °C 59 A

VOac Output ripple & noise IO = IOmax , f < 4-20 MHz 70 150 mVp-p

SVR Supply voltage rejection (ac) f = 100 Hz sinewave , 1 Vp-p , VI = 53 V 50 dB

OVP Over voltage protection VI = 53 V 3.9 4.4 5.0 V

TC = –40…+100°C, V

I = 36 ...75V, sense pins connected to output pins unless otherwise speciﬁ ed.

PKL 4110 PIT Output

Miscellaneous

Characteristics Conditions min typ max Unit

ηEfﬁ ciency - 50% load TC = +25 °C, VI = 53 V, IO = 0.5 x IOmax 92 %

ηEfﬁ ciency - 100% load TC = +25 °C, VI = 53 V, IO = IOmax 91 %

PdPower Dissipation TC = +25 °C, VI = 53 V, IO = IOmax 22 W

fsSwitching frequency IO = 0 ... 1.0 x IOmax 150 kHz

IImax Maximum input current 1.1 x VOi x IOmax / η / VImin 5.6 A

TC = –40…+100°C, V

I = 36 ...75V, sense pins connected to output pins unless otherwise speciﬁ ed.

20 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Efﬁ ciency

Output Characteristic

Output Current Derating

Power Dissipation

PKL 4110 PIT Typical Characteristics

Start-Up Turn-Off

Start-up at IO = 50 A resistive load at TC = +25 °C,

Vin = 53 V. Start enabled by connecting Vin.

Top trace: output voltage (1 V/div.).

Bottom trace: input voltage (20 V/div.).

Time scale: 20 ms/div.

Output voltage vs. load current at TC = +25 °C, Vin = 53 V.

Available load current vs. ambient air temperature and

airﬂ ow at Vin = 53 V.

Efﬁ ciency vs. load current and input voltage at TC = +25 °C

0 102030405060

[A]

[%]

36 V

48 V

53 V

75 V

020

40 60 80 100

[°C]

[A]

2.0 m/s (400 lfm)

1.5 m/s (300 lfm)

1.0 m/s (200 lfm)

0.5 m/s (100 lfm)

Nat. Conv.

3.0 m/s (600 lfm)

2.5 m/s (500 lfm)

0 102030405060

3.0

3.1

3.2

3.3

3.4

3.5

3.6

[A]

[V]

0 102030405060

[A]

[W]

36 V

48 V

53 V

75 V

Dissipated power vs. load current and input voltage at

TC = +25 °C

Turn-off at IO = 50 A resistive load at TC = +25 °C,

Vin = 53 V. Turn-off enabled by disconnecting Vin.

Trace: output voltage (1 V/div.).

Time scale: 5 ms/div.

21 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Output Ripple Transient

PKL 4110 PIT Typical Characteristics

Output voltage ripple (50mV/div.) at TC = +25 °C

Vin = 53 V, IO = 50 A resistive load.

Band width = 20 MHz.

Time scale: 2 µs / div.

Output voltage response to load current step-change

(12.5-37.5-12.5 A) at TC = +25 °C, Vin = 53 V.

Trace: output voltage (420 mV/div.).

dI/dt = 4 A/µs

Time scale: 50 µs/div.

Output Voltage Adjust

Output voltage adjust resistor value vs.

percentage change.

0 2 4 6 8 101214161820

700

600

500

400

300

200

100

[%]

[kΩ]

VOincrease

VOdecrease

Output Voltage Adjust

The resistor value for an adjusted output voltage is calcu-

lated by using the following equations:

Output Voltage Adjust Upwards, Increase:

Radj= [(15.9VO+3.3)/(VO-3.3)] kOhm

Output Voltage Adjust Downwards, Decrease:

Radj= [(11VO-3.3)/(3.3-VO)] kOhm

Ex. Increase to: 3.35 Vdc

(15.9x3.35+3.3)/(3.35-3.3) = 1090 kOhm

Ex. Decrease to: 3.25 Vdc

(11x3.25-3.3)/(3.3-3.25) = 649 kOhm

22 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Characteristics Conditions

Output Unit

min typ max

VOi

Output voltage initial setting

and accuracy TC = +25 °C, VI = 53 V, IO = IOmax 3.25 3.3 3.35 V

Output adjust range IO = IOmax 2.64 3.63 V

Output voltage tolerance band IO = 0.1...1 x IOmax 3.2 3.4 V

Idling voltage IO = 0 3.2 3.4 V

Line regulation IO = IOmax 515mV

Load regulation VI = 53 V, IO = 0.01...1 x IOmax 515mV

Vtr

Load transient

voltage deviation

IO = 0.1...1 x IOmax , VI = 53 V

Load step = 0.25 x IOmax di/dt = 1A/µs

+250

-250 mV

ttr Load transient recovery time IO = 0.1...1 x IOmax , VI = 53

loadstep = 0.25x IOmax

200 µs

trRamp-up time IO = 0.1...0.9 x VO10 30 ms

tsStart-up time From VI connected to VO = 0.9 x VOI 10 30 ms

IOOutput current 0 60 A

POmax Max output power At VO = VOnom 198 W

Ilim Current limit threshold TC < TCmax 61 64.8 72 A

Isc Short circuit current TC = 25 °C 68 A

VOac Output ripple & noise IO = IOmax , f < 4-20 MHz 70 150 mVp-p

SVR Supply voltage rejection (ac) f = 100 Hz sinewave , 1 Vp-p , VI = 53 V 50 dB

OVP Over voltage protection VI = 53 V 3.9 4.4 5.0 V

TC = –40…+100°C, V

I = 36 ...75V, sense pins connected to output pins unless otherwise speciﬁ ed.

PKL 4110A PIT Output

Miscellaneous

Characteristics Conditions min typ max Unit

ηEfﬁ ciency - 50% load TC = +25 °C, VI = 53 V, IO = 0.5 x IOmax 92 %

ηEfﬁ ciency - 100% load TC = +25 °C, VI = 53 V, IO = IOmax 89 %

PdPower Dissipation TC = +25 °C, VI = 53 V, IO = IOmax 24 W

fsSwitching frequency IO = 0 ... 1.0 x IOmax 150 kHz

IImax Maximum input current 1.1 x VOi x IOmax / η / VImin 6.8 A

TC = –40…+100°C, V

I = 36 ...75V, sense pins connected to output pins unless otherwise speciﬁ ed.

23 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Efﬁ ciency

Output Characteristic

Output Current Derating

Power Dissipation

PKL 4110A PIT Typical Characteristics

Start-Up Turn-Off

Start-up at IO = 60 A resistive load at TC = +25 °C,

Vin = 53 V. Start enabled by connecting Vin.

Top trace: output voltage (1 V/div.).

Bottom trace: input voltage (20 V/div.).

Time scale: 20 ms/div.

Output voltage vs. load current at TC = +25 °C, Vin = 53 V.

Available load current vs. ambient air temperature and

airﬂ ow at Vin = 53 V.

Efﬁ ciency vs. load current and input voltage at TC = +25 °C

0 20406080

[A]

[%]

36 V

48 V

53 V

75 V

0 20 40 60 80 100

[°C]

[A]

2.0 m/s (400 lfm)

1.5 m/s (300 lfm)

1.0 m/s (200 lfm)

0.5 m/s (100 lfm)

Nat. Conv.

3.0 m/s (600 lfm)

2.5 m/s (500 lfm)

020406080

3.20

3.25

3.30

3.35

3.40

[A]

[V]

020406080

[A]

[W]

36 V

48 V

53 V

75 V

Dissipated power vs. load current and input voltage at

TC = +25 °C

Turn-off at IO = 60 A resistive load at TC = +25 °C,

Vin = 53 V. Turn-off enabled by disconnecting Vin.

Trace: output voltage (1 V/div.).

Time scale: 5 ms/div.

24 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Output Ripple Transient

PKL 4110A PIT Typical Characteristics

Output voltage ripple (50 mV/div.) at TC = +25 °C

Vin = 53 V, IO = 60 A resistive load.

Band width = 20 MHz.

Time scale: 2 µs / div.

Output voltage response to load current step-change

(15-45-15 A) at TC = +25 °C, Vin = 53 V.

Trace: output voltage (420 mV/div.).

dI/dt = 20 A/µs

Time scale: 50 µs/div.

Output Voltage Adjust

Output voltage adjust resistor value vs.

percentage change.

0 2 4 6 8 101214161820

700

600

500

400

300

200

100

[%]

[kΩ]

VOincrease

VOdecrease

Output Voltage Adjust

The resistor value for an adjusted output voltage is calcu-

lated by using the following equations:

Output Voltage Adjust Upwards, Increase:

Radj= [(15.9VO+3.3)/(VO-3.3)] kOhm

Output Voltage Adjust Downwards, Decrease:

Radj= [(11VO-3.3)/(3.3-VO)] kOhm

Ex. Increase to: 3.35 Vdc

(15.9x3.35+3.3)/(3.35-3.3) = 1090 kOhm

Ex. Decrease to: 3.25 Vdc

(11x3.25-3.3)/(3.3-3.25) = 649 kOhm

25 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Characteristics Conditions

Output Unit

min typ max

VOi

Output voltage initial setting

and accuracy TC = +25 °C, VI = 53 V, IO = IOmax 4.9 5.0 5.1 V

Output adjust range IO = IOmax 4.0 5.5 V

Output voltage tolerance band IO = 0.1...1 x IOmax 4.85 5.15 V

Idling voltage IO = 0 4.85 5.15 V

Line regulation IO = IOmax 515mV

Load regulation VI = 53 V, IO = 0.01...1 x IOmax 515mV

Vtr

Load transient

voltage deviation

IO = 0.1...1 x IOmax , VI = 53 V

Load step = 0.25 x IOmax di/dt = 1A/µs +/-165 mV

ttr Load transient recovery time IO = 0.1...1 x IOmax , VI = 53

loadstep = 0.25x IOmax

150 µs

trRamp-up time IO = 0.1...0.9 x VO15 ms

tsStart-up time From VI connected to VO = 0.9 x VOI 20 ms

IOOutput current 0 50 A

POmax Max output power At VO = VOnom 250 W

Ilim Current limit threshold TC < TCmax 56.5 A

Isc Short circuit current TC = 25 °C 70 A

VOac Output ripple & noise IO = IOmax , f < 4-20 MHz 70 110 mVp-p

SVR Supply voltage rejection (ac) f = 100 Hz sinewave , 1 Vp-p , VI = 53 V 50 dB

OVP Over voltage protection VI = 53 V 5.9 V

TC = –40…+100°C, V

I = 36 ...75V, sense pins connected to output pins unless otherwise speciﬁ ed.

PKL 4211 PIT Output

Miscellaneous

Characteristics Conditions min typ max Unit

ηEfﬁ ciency - 50% load TC = +25 °C, VI = 53 V, IO = 0.5 x IOmax 91 %

ηEfﬁ ciency - 100% load TC = +25 °C, VI = 53 V, IO = IOmax 90.5 %

PdPower Dissipation TC = +25 °C, VI = 53 V, IO = IOmax 27 W

fsSwitching frequency IO = 0 ... 1.0 x IOmax 200 kHz

IImax Maximum input current 1.1 x VOi x IOmax / η / VImin 8.5 A

TC = –40…+100°C, V

I = 36 ...75V, sense pins connected to output pins unless otherwise speciﬁ ed.

26 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Efﬁ ciency

Output Characteristic

Output Current Derating

Power Dissipation

PKL 4211 PIT Typical Characteristics

Start-Up Turn-Off

Start-up at IO = 50 A resistive load at TC = +25 °C,

Vin = 53 V. Start enabled by connecting Vin.

Top trace: output voltage (2 V/div.).

Bottom trace: input voltage (20 V/div.).

Time scale: 20 ms/div.

Output voltage vs. load current at TC = +25 °C, Vin = 53 V.

Available load current vs. ambient air temperature and

airﬂ ow at Vin = 53 V.

Efﬁ ciency vs. load current and input voltage at TC = +25 °C

015 30 45 60

[A]

[%]

36 V

48 V

53 V

75 V

020

40 60 80 100

[°C]

[A]

2.0 m/s (400 lfm)

1.5 m/s (300 lfm)

1.0 m/s (200 lfm)

0.5 m/s (100 lfm)

Nat. Conv.

3.0 m/s (600 lfm)

2.5 m/s (500 lfm)

015304560

4.90

4.95

5.00

5.05

5.10

[A]

[V]

015 30 45 60

[A]

[W]

36 V

48 V

53 V

75 V

Dissipated power vs. load current and input voltage at

TC = +25 °C

Turn-off at IO = 50 A resistive load at TC = +25 °C,

Vin = 53 V. Turn-off enabled by disconnecting Vin.

Trace: output voltage (2 V/div.).

Time scale: 5 ms/div.

27 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Output Ripple Transient

PKL 4211 PIT Typical Characteristics

Output voltage ripple (50 mV/div.) at TC = +25 °C

Vin = 53 V, IO = 50 A resistive load.

Band width = 20 MHz.

Time scale: 2 µs/div.

Output voltage response to load current step-change

(15-45-15 A) at TC = +25 °C, Vin = 53 V.

Trace: output voltage (420 mV/div.).

dI/dt = 4 A/µs

Time scale: 50 µs/div.

Output Voltage Adjust

Output voltage adjust resistor value vs.

percentage change.

0 2 4 6 8 101214161820

700

600

500

400

300

200

100

[%]

[kΩ]

VOincrease

VOdecrease

Output Voltage Adjust

The resistor value for an adjusted output voltage is calcu-

lated by using the following equations:

Output Voltage Adjust Upwards, Increase:

Radj= [(VO(100+ ∆%)/(1.225∆% ))- (100+2∆%)/∆% ] kOhm

Output Voltage Adjust Downwards, Decrease:

Radj= [100 / ∆%-2 ] kOhm

Ex. Increase 5% to: 5.25 Vdc

(5(100+5)/(1.225*5)-(100+2*5)/5 = 64 kOhm

Ex. Decrease 5% to: 4.75 Vdc

(100/5)-2= 18 kOhm

28 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Characteristics Conditions

Output Unit

min typ max

VOi

Output voltage initial setting

and accuracy TC = +25 °C, VI = 53 V, IO = IOmax 4.9 5.0 5.1 V

Output adjust range IO = IOmax 4.0 5.5 V

Output voltage tolerance band IO = 0.1...1 x IOmax 4.85 5.15 V

Idling voltage IO = 0 4.85 5.15 V

Line regulation IO = IOmax 515mV

Load regulation VI = 53 V, IO = 0.01...1 x IOmax 515mV

Vtr

Load transient

voltage deviation

IO = 0.1...1 x IOmax , VI = 53 V

Load step = 0.25 x IOmax di/dt = 1A/µs +/-165 mV

ttr Load transient recovery time IO = 0.1...1 x IOmax , VI = 53

loadstep = 0.25x IOmax

150 µs

trRamp-up time IO = 0.1...0.9 x VO15 ms

tsStart-up time From VI connected to VO = 0.9 x VOI 20 ms

IOOutput current 0 60 A

POmax Max output power At VO = VOnom 300 W

Ilim Current limit threshold TC < TCmax 66.5 A

Isc Short circuit current TC = 25 °C 80 A

VOac Output ripple & noise IO = IOmax , f < 4-20 MHz 70 110 mVp-p

SVR Supply voltage rejection (ac) f = 100 Hz sinewave , 1 Vp-p , VI = 53 V 50 dB

OVP Over voltage protection VI = 53 V 5.9 V

TC = –40…+100°C, V

I = 36 ...75V, sense pins connected to output pins unless otherwise speciﬁ ed.

PKL 4311 PIT Output

Miscellaneous

Characteristics Conditions min typ max Unit

ηEfﬁ ciency - 50% load TC = +25 °C, VI = 53 V, IO = 0.5 x IOmax 91 %

ηEfﬁ ciency - 100% load TC = +25 °C, VI = 53 V, IO = IOmax 90 %

PdPower Dissipation TC = +25 °C, VI = 53 V, IO = IOmax 34 W

fsSwitching frequency IO = 0 ... 1.0 x IOmax 200 kHz

IImax Maximum input current 1.1 x VOi x IOmax / η / VImin 10.2 A

TC = –40…+100°C, V

I = 36 ...75V, sense pins connected to output pins unless otherwise speciﬁ ed.

29 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Efﬁ ciency

Output Characteristic

Output Current Derating

Power Dissipation

PKL 4311 PIT Typical Characteristics

Start-Up Turn-Off

Start-up at Io=60A resistive load at TC = +25 °C,

Vin = 53 V. Start enabled by connecting Vin.

Top trace: output voltage (2 V/div.).

Bottom trace: input voltage (20 V/div.).

Time scale: 20 ms/div.

Output voltage vs. load current at TC = +25 °C, Vin = 53 V.

Available load current vs. ambient air temperature and

airﬂ ow at Vin = 53 V.

Efﬁ ciency vs. load current and input voltage at TC = +25 °C

0 20406080

[A]

[%]

36 V

48 V

53 V

75 V

0 20406080100

[°C]

[A]

2.0 m/s (400 lfm)

1.5 m/s (300 lfm)

1.0 m/s (200 lfm)

0.5 m/s (100 lfm)

Nat. Conv.

3.0 m/s (600 lfm)

2.5 m/s (500 lfm)

020406080

4.90

4.95

5.00

5.05

5.10

[A]

[V]

020406080

[A]

[W]

36 V

48 V

53 V

75 V

Dissipated power vs. load current and input voltage at

TC = +25 °C

Turn-off at IO = 60 A resistive load at TC = +25 °C,

Vin = 53 V. Turn-off enabled by disconnecting Vin.

Trace: output voltage (2 V/div.).

Time scale: 5 ms/div.

30 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Output Ripple Transient

PKL 4311 PIT Typical Characteristics

Output voltage ripple (50 mV/div.) at TC = +25 °C

Vin = 53 V, IO = 60 A resistive load.

Band width = 20 MHz.

Time scale: 2 µs / div.

Output voltage response to load current step-change

(15-45-15 A) at TC = +25 °C, Vin = 53 V.

Trace: output voltage (420 mV/div.).

dI/dt = 4 A/µs

Time scale: 50 µs/div.

Output Voltage Adjust

Output voltage adjust resistor value vs.

percentage change.

0 2 4 6 8 101214161820

700

600

500

400

300

200

100

[%]

[kΩ]

VOincrease

VOdecrease

Output Voltage Adjust

The resistor value for an adjusted output voltage is

calculated by using the following equations:

Output Voltage Adjust Upwards, Increase:

Radj= [(VO(100+ ∆%)/(1.225∆% ))- (100+2∆%)/∆% ] kOhm

Output Voltage Adjust Downwards, Decrease:

Radj= [100 / ∆%-2 ] kOhm

Ex. Increase 5% to: 5.25 Vdc

(5(100+5)/(1.225*5)-(100+2*5)/5 = 64 kOhm

Ex. Decrease 5% to: 4.75 Vdc

(100/5)-2= 18 kOhm

31 EN/LZT 146 047 R4A © Ericsson Power Modules, June 2004

PKL 4000 Series Datasheet

Characteristics Conditions

Output Unit

min typ max

VOi

Output voltage initial setting

and accuracy TC = +25 °C, VI = 53 V, IO = IOmax 11.8 12 12.2 V

Output adjust range IO = IOmax 9.6 13.2 V

Output voltage tolerance band IO = 0.1...1 x IOmax 11.64 12.36 V

Idling voltage IO = 0 11.64 12.36 V

Line regulation IO = IOmax 12 20 mV

Load regulation VI = 53 V, IO = 0.01...1 x IOmax 12 20 mV

Vtr

Load transient

voltage deviation

IO = 0.1...1 x IOmax , VI = 53 V

Load step = 0.25 x IOmax di/dt = 1A/µs +/-200 mV

ttr Load transient recovery time IO = 0.1...1 x IOmax , VI = 53

loadstep = 0.25x IOmax

200 µs

trRamp-up time IO = 0.1...0.9 x VO15 ms

tsStart-up time From VI connected to VO = 0.9 x VOI 20 30 ms

IOOutput current 0 20 A

POmax Max output power At VO = VOnom 240 W

Ilim Current limit threshold TC < TCmax 23.5 28 A

Isc Short circuit current TC = 25 °C 26 29 A

VOac Output ripple & noise IO = IOmax , f < 4-20 MHz 80 150 mVp-p

SVR Supply voltage rejection (ac) f = 100 Hz sinewave , 1 Vp-p , VI = 53 V 50 dB

OVP Over voltage protection VI = 53 V 14.9 V

TC = –40…+100°C, V

I = 36 ...75V, sense pins connected to output pins unless otherwise speciﬁ ed.

PKL 4213 PIT Output

Miscellaneous

Characteristics Conditions min typ max Unit

ηEfﬁ ciency - 50% load TC = +25 °C, VI = 53 V, IO = 0.5 x IOmax 91.5 %

ηEfﬁ ciency - 100% load TC = +25 °C, VI = 53 V, IO = IOmax 92.5 %

PdPower Dissipation TC = +25 °C, VI = 53 V, IO = IOmax 19.9 W

fsSwitching frequency IO = 0 ... 1.0 x IOmax 200 kHz

IImax Maximum input current 1.1 x VOi x IOmax / η / VImin 7.9 A

TC = –40…+100°C, V

I = 36 ...75V, sense pins connected to output pins unless otherwise speciﬁ ed.

PKL 4000 Series Datasheet

Efﬁ ciency

Output Characteristic

Output Current Derating

Power Dissipation

PKL 4213 PIT Typical Characteristics

Start-Up Turn-Off

Start-up at IO = 20 A resistive load at TC = +25 °C,

Vin = 53 V. Start enabled by connecting Vin.

Top trace: output voltage (5 V/div.).

Bottom trace: input voltage (20 V/div.).

Time scale: 20 ms/div.

Output voltage vs. load current at TC = +25 °C, Vin = 53 V.

Available load current vs. ambient air temperature and

airﬂ ow at Vin = 53 V.

Efﬁ ciency vs. load current and input voltage at TC = +25 °C

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Dissipated power vs. load current and input voltage at

TC = +25 °C

Turn-off at IO = 20 A resistive load at TC = +25 °C,

Vin = 53 V. Turn-off enabled by disconnecting Vin.

Trace: output voltage (5 V/div.).

Time scale: 0.2 ms/div.

PKL 4000 Series Datasheet

Output Ripple Transient

PKL 4213 PIT Typical Characteristics

Output voltage ripple (50 mV/div.) at TC = +25 °C

Vin = 53 V, IO = 20 A resistive load.

Band width = 20 MHz.

Time scale: 2 µs/div.

Output voltage response to load current step-change

(5-15-5 A) at TC = +25 °C, Vin = 53 V.

Trace: output voltage (0.84 V/div.).

dI/dt = 4 A/µs

Time scale: 50 µs/div.

Output Voltage Adjust

Output voltage adjust resistor value vs.

percentage change.

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Output Voltage Adjust

The resistor value for an adjusted output voltage is

calculated by using the following equations:

Output Voltage Adjust Upwards, Increase:

Radj= [(VO(100+ ∆%)/(1.225∆% ))- (100+2∆%)/∆% ] kOhm

Output Voltage Adjust Downwards, Decrease:

Radj= [100 / ∆%-2 ] kOhm

Ex. Increase 2% to: 12.24 Vdc

12(100+2)/(1.225*2)-(100+2*2)/2 = 447 kOhm

Ex. Decrease 2% to: 11.76 Vdc

(100/2)-2= 48 kOhm

PKL 4000 Series Datasheet

Characteristics Conditions

Output Unit

min typ max

VOi

Output voltage initial setting

and accuracy TC = +25 °C, VI = 53 V, IO = IOmax 11.8 12 12.2 V

Output adjust range IO = IOmax 9.6 13.2 V

Output voltage tolerance band IO = 0.1...1 x IOmax 11.64 12.36 V

Idling voltage IO = 0 11.64 12.36 V

Line regulation IO = IOmax 12 20 mV

Load regulation VI = 53 V, IO = 0.01...1 x IOmax 12 20 mV

Vtr

Load transient

voltage deviation

IO = 0.1...1 x IOmax , VI = 53 V

Load step = 0.25 x IOmax di/dt = 1A/µs +/-200 mV

ttr Load transient recovery time IO = 0.1...1 x IOmax , VI = 53

loadstep = 0.25x IOmax

200 µs

trRamp-up time IO = 0.1...0.9 x VO15 ms

tsStart-up time From VI connected to VO = 0.9 x VOI 20 30 ms

IOOutput current 0 25 A

POmax Max output power At VO = VOnom 300 W

Ilim Current limit threshold TC < TCmax 27.5 32 A

Isc Short circuit current TC = 25 °C 30 42 A

VOac Output ripple & noise IO = IOmax , f < 4-20 MHz 80 150 mVp-p

SVR Supply voltage rejection (ac) f = 100 Hz sinewave , 1 Vp-p , VI = 53 V 50 dB

OVP Over voltage protection VI = 53 V 14.9 V

TC = –40…+100°C, V

I = 36 ...75V, sense pins connected to output pins unless otherwise speciﬁ ed.

PKL 4313 PIT Output

Miscellaneous

Characteristics Conditions min typ max Unit

ηEfﬁ ciency - 50% load TC = +25 °C, VI = 53 V, IO = 0.5 x IOmax 92 %

ηEfﬁ ciency - 100% load TC = +25 °C, VI = 53 V, IO = IOmax 92 %

PdPower Dissipation TC = +25 °C, VI = 53 V, IO = IOmax 26 W

fsSwitching frequency IO = 0 ... 1.0 x IOmax 200 kHz

IImax Maximum input current 1.1 x VOi x IOmax / η / VImin 9.9 A

TC = –40…+100°C, V

I = 36 ...75V, sense pins connected to output pins unless otherwise speciﬁ ed.

PKL 4000 Series Datasheet

Efﬁ ciency

Output Characteristic

Output Current Derating

Power Dissipation

PKL 4313 PIT Typical Characteristics

Start-Up Turn-Off

Start-up at IO = 25 A resistive load at TC = +25 °C,

Vin = 53 V. Start enabled by connecting Vin.

Top trace: output voltage (5 V/div.).

Bottom trace: input voltage (20 V/div.).

Time scale: 20 ms/div.

Output voltage vs. load current at TC = +25 °C, Vin = 53 V.

Available load current vs. ambient air temperature and

airﬂ ow at Vin = 53 V.

Efﬁ ciency vs. load current and input voltage at TC = +25 °C

0510

15 20 25 30

[A]

[%]

36 V

48 V

53 V

75 V

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0510

15 20 25 30

[A]

[V]

051015

20 25 30

[A]

[W]

36 V

48 V

53 V

75 V

Dissipated power vs. load current and input voltage at

TC = +25 °C

Turn-off at IO = 25 A resistive load at TC = +25 °C,

Vin = 53 V. Turn-off enabled by disconnecting Vin.

Trace: output voltage (5 V/div.).

Time scale: 0.2 ms/div.

PKL 4000 Series Datasheet

Output Ripple Transient

PKL 4313 PIT Typical Characteristics

Output voltage ripple (50 mV/div.) at TC = +25 °C

Vin = 53 V, IO = 25 A resistive load.

Band width = 20 MHz.

Time scale: 2 µs/div.

Output voltage response to load current step-change

(6.25-18.75-6.25 A) at TC = +25 °C, Vin = 53 V.

Trace: output voltage (0.84 V/div.).

dI/dt = 4 A/µs

Time scale: 50 µs/div.

Output Voltage Adjust

Output voltage adjust resistor value vs.

percentage change.

0 2 4 6 8 10 12 14 16 18 20

100000

10000

1000

100

[%]

[k7]

VO increase

VO decrease

Output Voltage Adjust

The resistor value for an adjusted output voltage is

calculated by using the following equations:

Output Voltage Adjust Upwards, Increase:

Radj= [(VO(100+ ∆%)/(1.225∆% ))- (100+2∆%)/∆% ] kOhm

Output Voltage Adjust Downwards, Decrease:

Radj= [100 / ∆%-2 ] kOhm

Ex. Increase 2% to: 12.24 Vdc

12(100+2)/(1.225*2)-(100+2*2)/2 = 447 kOhm

Ex. Decrease 2% to: 11.76 Vdc

(100/2)-2= 48 kOhm

PKL 4000 Series Datasheet

EMC Speciﬁ cation

The conducted EMI measurement is performed using a

module placed directly on the test bench.

The fundamental switching frequency is 150 kHz for PKL

4118B PIT @ VI = 53V, IO = (0.1...1.0) × IOmax.

External ﬁ lter (class B)

Recommended external input ﬁ lter.

The capacitors are ceramic type. Low ESR is critical for

acheiveing these results.

Test set-up.

Power

Source

5µH 50Ω

LISN

in out

out

rcvr

50 ohm input

1 m Twisted Pair

50 ohm temination

Optional Connection

to Earth Ground

Filter

(if used)

Power Module

Resistive

Load

Printed Circuit Board

EMC

Reciver Computer

C1 C2 C4

PKL module

Layout Recommendation

The radiated EMI performance of the DC/DC converter will be

optimised by including a ground plane in the PCB area under

the DC/DC converter. This approach will return switching

noise to ground as directly as possible, with improvements to

both emissions and susceptibility. If one ground trace is used,

it should be connected to the input return. Alternatively, two

ground traces may be used, with the trace under the input side

of the DC/DC converter connected to the input return and the

trace under the output side of the DC/DC converter connected

to the output return. Make sure to use appropriate safety

isolation spacing between these two return traces. The use of

two traces as described will provide the capability of routing

the input noise and output noise back to their respective

returns.

PKL 4118B PIT without ﬁ lter.

PKL 4118B PIT with ﬁ lter.

L1; 473 µH

L2,3; 20 µH

C1,2,3; 1.5 µF

C4; 470 µF

C5,6; 3.3 nF

PKL 4000 Series Datasheet

Operating Information

Input Voltage

The input voltage range 36…75Vdc meets the requirements

of the European Telecom Standard ETS 300 132-2 for normal

input voltage range in –48V and –60V DC systems, -

40.5…-57.0V and –50.0…-72V respectively. At input

voltages exceeding 75V, the power loss will be higher than at

normal input voltage and TC must be limited to absolute max

+100 °C (PKL 4118B PIT max +110 °C). The absolute

maximum continuous input voltage is 80 Vdc.

Turn-Off Input Voltage

The PKL 4000 Series DC/DC converters monitor the input

voltage and will turn on and turn off at predetermined levels.

The minimum hysteresis between turn on and turn off input

voltage is 1V where the turn on input voltage is the highest.

Output Voltage Adjust (Vadj)

All PKL 4000 Series DC/DC converters have an Output

Voltage adjust pin (Vadj). This pin can be used to adjust the

output voltage above or below Output voltage initial setting.

When increasing the output voltage, the voltage at the output

pins (including any remote sense offset) must be kept below

the overvoltage trip point, to prevent the converter from

shut down. Also note that at increased output voltages the

maximum power rating of the converter remains the same, and

the output current capability will decrease correspondingly. To

decrease the output voltage the resistor should be connected

between Vadj pin and –Sense pin. To increase the voltage the

resistor should be connected between Vadj pin and +Sense

pin. The resistor value of the Output voltage adjust function is

according to information given under the output section.

Remote Control (RC)

The PKL 4000 Series DC/DC converters have remote control

function referenced to the primary side (minus input), with

negative and positive logic options available. The RC function

is CMOS open drain compatible. Maximum sink current is

1mA. When the RC pin is left open, the voltage generated

on the RC pin by the DC/DC converter is 3.5-6.0V. The

maximum allowable leakage current of the switch is 50 µA.

The standard converter is provided with “negative logic”

remote control and will be off until the RC pin is connected to

the minus input. To turn on the converter the voltage between

RC pin and minus input should be less than 1V. To turn off

the converter the RC pin should be left open, or connected

to a voltage higher than 4V referenced to minus input. In

situations where it is desired to have the converter power up

automatically without the need for control signals or a switch,

the RC pin can be wired directly to the –Input circuit on the

application board.

The second option is “positive logic” remote control, which

can be ordered by adding the suffix “P” to the end of the

part number. The converter will turn on if the input voltage

is applied with the RC pin open. Turn off is achieved by

connecting the RC pin to the minus input. To ensure safe turn

off the voltage difference between minus input pin and the RC

pin shall be less than 1V. The converter will restart when this

connection is opened.

All PKL 4000 Series DC/DC converters have remote sense that

can be used to compensate for moderate amounts of resistance

in the distribution system and allow for voltage regulation at

the load or other selected point. The remote sense lines will

carry very little current and do not need a large cross sectional

area. However, the sense lines on the PCB should be located

close to a ground trace or ground plane. In a discrete wiring

situation, the use of twisted pair wires or other technique to

reduce noise susceptibility is highly recommended. The remote

sense circuitry will compensate for up to 10% voltage drop

between the sense voltage and the voltage at the output pins.

The output voltage and the remote sense voltage offset must be

less than the minimum over voltage trip point. If the remote

sense is not needed the –Sense should be connected to –Out

and +Sense should be connected to +Out.

Remote Sense

Circuit conﬁ guration for output voltage adjust

+Out

-Out

+Sense

Vadj

-Sense

Load

Radj

Decrease

Load

Increase

+Out

-Out

+Sense

Vadj

-Sense

PKL 4000 Series Datasheet

Operating Information

Over Temperature Protection (OTP)

The PKL 4000 Series DC/DC converters are protected from

thermal overload by an internal over temperature shutdown

circuit. When the baseplate or case temperature exceeds 110 °C

(PKL4118B 120 °C) the converter will shut down immediately

(latching). The converter can be restarted by cycling the input

voltage or using the remote control function.

Input And Output Impedance

The impedance of both the power source and the load will

interact with the impedance of the DC/DC converter. It is

most important to have a ratio between L and C as low as

possible, i.e. a low characteristic impedance, both at the

input and output, as the converters have a low energy storage

capability. The PKL 4000 Series DC/DC converters have been

designed to be completely stable without the need for external

capacitors on the input or the output circuits. The performance

in some applications can be enhanced by addition of external

capacitance as described under maximum capacitive load. If

the distribution of the input voltage source to the converter

contains significant inductance, the addition of a 100 µF

capacitor across the input of the converter will help insure

stability. This capacitor is not required when powering the

DC/DC converter from a low impedance source with short, low

inductance, input power leads.

Parallel Operation

The PKL 4000 Series DC/DC converters can be paralleled safely

without any external components, however good matching

between the initial voltage setting and the layout impedence/

resistance can change the performance. Please consult with your

Ericsson representative should parallelling the PKL 4000 series

for increased power be desired.

Maximum Capacitive Load

When powering loads with significant dynamic current

requirements, the voltage regulation at the load can be

improved by addition of decoupling capacitance at the load.

The most affective technique is to locate low ESR ceramic

capacitors as close to the load as possible, using several

capacitors to lower the effective ESR. These ceramic capacitors

will handle short duration high-frequency components of

dynamic load changes. In addition, higher values of electrolytic

capacitors should be used to handle the mid-frequency

components. It is equally important to use good design practice

when configuring the DC distribution system.

Low resistance and low inductance PCB (printed circuit board)

layouts and cabling should be used. Remember that when

using remote sensing, all resistance, inductance and capacitance

of the distribution system is within the feedback loop of the

converter. This can have affect on the converters compensation

and the resulting stability and dynamic response performance.

As a “rule of thumb”, 100 µF/A of output current can be

used without any additional analysis. For example with a 25A

converter, values of decoupling capacitance up to 2500 µF

can be used without regard to stability. With larger values of

capacitance, the load transient recovery time can exceed the

specified value. As much of the capacitance as possible should

be outside the remote sensing loop and close to the load. The

absolute maximum value of output capacitance is 10 000 µF.

For values larger than this, please contact your local Ericsson

Power Modules representative.

Current Limit Protection

The PKL 4000 Series DC/DC converters include current

limiting circuitry that allows them to withstand continuous

overloads or short circuit conditions on the output. The output

voltage will decrease towards zero for output currents in excess

of max output current (Iomax).

The converter will resume normal operation after removal of the

overload. The load distribution system should be designed to

carry the maximum output short circuit current specified.

Over Voltage Protection (OVP)

The PKL 4000 Series DC/DC converters have latching

output overvoltage protection. In the event of an over-voltage

condition, the converter will shut down immediately. The

converter can be restarted by cycling the input voltage or using

the remote control function.

PKL 4000 Series Datasheet

0123

[m/s]

[°C/W]

Thermal Consideration

General

The PKL 4000 Series DC/DC converters are designed to

operate in a variety of thermal environments, however

sufficient cooling should be provided to help ensure reliable

operation. Heat is removed by conduction, convection and

radiation to the surrounding environment. Increased airflow

enhances the heat transfer via convection. The available load

current vs. ambient air temperature and airflow at Vin=53 V

for each model is according to the information given under

the output section. The test is done in a wind tunnel with a

cross section of 305x305 mm, the DC/DC converter vertically

mounted on a 16 layer PCB with a size of 254x254 mm.

Proper cooling can be verified by measuring the temperature

of selected devices.

Calculation of ambient temperature

By using the thermal resistance the maximum allowed

ambient temperature can be calculated.

1. The powerloss is calculated by using the formula

((1/η) - 1) × output power = power losses.

η = efﬁ ciency of converter. E.g 85 % = 0.85

2. Find the value of the thermal resistance in the diagram

by using the airﬂ ow speed at the module. Take the thermal

resistance x powerloss to get the temperature increase.

Thermal resistance vs. airspeed measured at the converter.

Tested in windtunnel with a cross section of 305×305 mm

mounted on a 16 layer PCB with a size of 254×254 mm.

3. Max allowed calculated ambient temperature is: Max

C of DC/DC converter – temperature increase.

Example: PKL 4118B PIT

Conditions:

Input voltage 53 V

Max case temperature 110 °C

Output current 80 A

Efﬁ ciency 81.5%

Airﬂ ow 2 m/s

2. 32.6W × 1.8 °C/W = 58.68 °C (temperature increase)

3. 110 °C - 58.7 °C = max ambient temperature is 51.3 °C

The real temperature will be dependent on several factors,

like PCB size and type, direction of airﬂ ow, air turbulence,

heatsinking etc. It is recommended to verify the temperature

by testing.

1. (( ) - 1) × 144 W = 32.6 W (powerloss)

0.815

PKL 4000 Series Datasheet

Quality

Reliability

The Mean Time Between Failure (MTBF) of the PKL 4000

series DC/DC converter family is calculated to be greater than

(>) 3.7million hours at full output power and a baseplate or case

temperature of 90°C using the Ericsson failure rate data system

(TILDA/Preditool). The Ericsson failure rate data system

is based on field failure rates and is continuously updated.

The data corresponds to actual failure rates of components

used in Information Technology and Telecom equipment in

temperature controlled environments (TA= -5...+65°C). The

data is considered to have a confidence level of 90%. For more

information please refer to Design Note 002.

Quality Statement

The PKL 4000 series DC/DC converters are designed and

manufactured in an industrial environment where quality

systems and methods like ISO 9000, 6σ (sigma), and SPC

are intensively in use to boost the continuous improvements

strategy. Infant mortality or early failures in the products

are screened out and they are subjected to an ATE-based final

test. Conservative design rules, design reviews and product

qualifications, plus the high competence of an engaged work

force, contribute to the high quality of our products.

Limitation of Liability

Ericsson Power Modules does not make any other warranties,

expressed or implied including any warranty of merchantability

or fitness for a particular purpose (including, but not limited to,

use in life support applications, where malfunctions of product

can cause injury to a person's health or life).

Delivery Package Information

PKL 4000 series standard delivery package is a 50 pcs box

One box contains 5 full trays.

Tray Speciﬁ cation

Material: ESD PET

Max surface resistance: <1010 Ohm/sq

Color: Clear

Capacity: 10 pcs/tray

Weight: 1100 g

Miscellaneous

The PKL 4000 Series DC/DC converters are intended for

through hole mounting on a PCB. When wave soldering is

used max temperature on the pins are specified to 215°C for 10

seconds. Maximum preheat rate of 4°C/s is suggested. When

hand soldering is used a thermocouple needs to be mounted

on the DC/DC converter pins to verify that pin temperatures

doe not exceed 215°C for longer than 10 seconds with the used

soldering tools.

No-clean flux is recommended to avoid entrapment of cleaning

fluids in cavities inside of the DC/DC power module. The

residues may affect long time reliability and isolation voltage.

Design for Environment (DfE)

The PKL 4000 Series DC/DC converters are designed to fulfill

the wanted functionality with minimum environmental impact.

The converters are presently assembled using low lead solder

and electroless nickel plated brass pins. Lead free solder will be

used in the coming year.

All packaging used for shipping is recyclable.

Soldering Information

VO/IO max PO max Ordering No. Page Comment

Output 1

48/60 1.8 V/60 A 108 W PKL 4118 PIT 4-6

48/60 1.8 V/80 A 144 W PKL 4118B PIT 7-9

48/60 2.5 V/50 A 125 W PKL 4119 PIT 10-12

48/60 2.5 V/60 A 150 W PKL 4119A PIT 13-15

48/60 2.5 V/80 A 200 W PKL 4219A PIT 16-18

48/60 3.3 V/50 A 165 W PKL 4110 PIT 19-21

48/60 3.3 V/60 A 198 W PKL 4110A PIT 22-24

48/60 5.0 V/50 A 250 W PKL 4211 PIT 25-27

48/60 5.0 V/60 A 300 W PKL 4311 PIT 28-30

48/60 12 V/20 A 240 W PKL 4213 PIT 31-33

48/60 12 V/25 A 300 W PKL 4313 PIT 34-36

48/60 28 V/11 A 310 W PKL 4316 PIT See PKL 4316 datasheet

48/60 28 V/13 A 366 W PKL 4316A PIT See PKL 4316 datasheet

Information given in this data sheet is believed to be accurate and reliable.

No re spon si bil i ty is assumed for the con se quenc es of its use nor for any infringement

of patents or other rights of third parties which may result from its use.

No license is grant ed by implication or otherwise under any patent or patent rights of

Ericsson Power Modules. These products are sold only ac cord ing to

Ericsson Power Modules’ general conditions of sale, unless oth er wise con ﬁ rmed in

writing. Speciﬁ cations subject to change without notice.

Datasheet

The latest and most complete infor-

mation can be found on our website

Option Sufﬁ x Example

Negative Remote Control logic

Industry standard Output Adjust T PKL 4118B PIT

Positive logic option P PKL 4219A PIPT

Standard half-brick pin

conﬁ guration SP PKL 4110A PITSP

Non-threaded standoff with

increased length 0.5 mm (0.02 in) M PKL 4118B PITM

Lead length 3.68 mm (0.145 in) LA PKL 4118B PITLA

Lead length 4.57 mm (0.180 in) LB PKL 4118B PITLB

Lead length 2.80 mm (0.11 in) LC PKL 4118B PITLC

Product Program

EN/LZT 146 047 R4A

Product Options

The PKL series DC/DC converter may be ordered with different options

listed in the Product Options Table.

Ericsson Power Modules Americas

SE-141 75 Kungens Kurva, Sweden Ericsson Inc., Power Modules

Telephone: +46 8 568 69620 +1-972-583-5254, +1-972-583-6910

For local sales contacts, please refer to our website Asia/Paciﬁ c

www.ericsson.com/powermodules Ericsson Ltd.

or call: Int +46 8 568 69620, Fax: +46 8 568 69599 +852-2590-2453

For more information about the complete product program, please refer

to our website: www.ericsson.com/powermodules