PKF2611ASI/B - Ericsson, Inc. - Datasheet.Directory

PKF 2000 I

6–12 W DC/DC Power Modules

24 V Input Series

• SMD and through-hole versions with

ultra low component height

8 mm (0.315 in)

• 84% efficiency (typ at 5V)

• 1,500Vdc isolation voltage

• Output current up to 2 A

• Switching frequency syncronization

• MTBF > 4.9 million hours at

+50°C pin temperature (+40°C

ambient)

• Low EMI measured according to

CISPR 22 and FCC part 15J

The MacroDens™ PKF 2000 I series true

component level on-board DC/DC power modules

are intended as distributed power sources in

decentralized +24V DC power system.

Utilization of thick film technology and a high

degree of silicon integration has made it possible to

achieve a MTTF of more than 4.9 million hours.

The highly reliable and rugged over-moulded design

and the ultra low height makes them particularly

suited for cellular radio and other demanding

industrial applications, with board spacing down to

15 mm or 0.6 in.

These DC/DC power modules are optimized for free

convection cooling and have an operational ambient

temperature range in compliance with present and

future application needs, including non

temperature controlled environments.

The mechanical design offers the choice of surface

mount or through-hole versions, delivered in ready-

to-use tubes, trays or tape & reel package, and com-

patibility with semi and fully aqueous cleaning

processes.

The PKF series is manufactured using highly

automated manufacturing lines with a world-class

quality commitment and a five-year warranty.

Ericsson Power Modules AB is an ISO 9001/14001

certified supplier.

Patents

US: D357901 DE: M94022763

2EN/LZT 146 31 R1B © Ericsson Power Modules AB, March 2004

General

Absolute Maximum Ratings

Characteristics

Isolation voltage

(input to output test voltage)

VISO

Input TC <TCmax unless otherwise specified

Input stand-by powerPRC

min max Unit

TCCase temperature at full output power –45 +100 °C

TSStorage temperature –55 +125 °C

VIContinuous input voltage –0.5 +40 Vdc

1,500 Vdc

Vtr Transient input energy 0.01 Ws

VRC Remote control voltage pin 10, 11 ref. to pin 18 –5 VIVdc

Vadj Output adjust voltage pin 8, 9 ref. to pin 18 –5 +40 Vdc

VIInput voltage range1) 18 36 V

VIoff Tur n-off input voltage 16 18 V16.8

See typical characteristics

VIon Turn-on input voltage 19 V18.3See typical characteristics

CIInput capacitance mF2.4

PIi Input idling power IO=0, TC=–30…+85°C (VI=24V)

(VI=27V) 360

300

(VI=24V)

(VI=27V) 25

TC=–30…+85°C,

RC connected to pin 18

Characteristics Conditions min typ max Unit

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 unspeci-

fied manner.

NOTES:

1) The power modules will operate down to

VI £18V, when VI decreases, but will turn on

at VI £19V, when VI increases (see also

Operating Information.

2) The test is applicable for through-hole

versions.

Environmental Characteristics

Characteristics Frequency 10…500 Hz

Amplitude 0.75 mm

Acceleration 10 g

Number of cycles 10 in each axis

Vibration

(Sinusoidal) JESD 22-B103

(IEC 68-2-6 Fc)

Test procedure & conditions

Frequency 10…500 Hz

Acceleration density

spectrum 0.5 g2/Hz

Duration 10 min in 3 directions

Reproducability medium (IEC 62-2-36)

MIL-STD-883

Method 2026

(IEC 68-2-34 Ed)

Random

vibration

Peak acceleration 200 g

Shock duration 3 ms

Shock

(Half sinus) JESD 22-B104

(IEC 68-2-27 Ea)

Temperature 85°C

Humidity 85% RH

Duration 1000 hours

Temperature –40°C…+125°C

Number of cycles 500

Temperature, solder 260°C

Duration 10…13 s

Temperature

change

Accelerated

damp heat

Solder

resistability2)

JESD 22-A104

(IEC 68-2-14 Na)

JESD 22-A101

(IEC 68-2-3 Ca

with bias)

JESD 22-B106

(IEC 68-2-20 Tb 1A)

Duration 96 h

Temperature 35°C

Concentration 5 %

IEC 68-2-11 Ka

Aggressive

environment

EN/LZT 146 31 R1B © Ericsson Power Modules AB, March 2004 3

Mechanical Data

Through-hole version

Foot print Component side Foot print Component side

Dimensions in mm (in)

•

•••••••••

∅ ×

3.6 [0.142]

5.0 [0.197]

24.0 [0.945]

29.6 [1.165]

2.8 [0.110]

12 345 6789

1011

131415

40.0 [1.575]

Dimensions in mm (in)

Surface-mount version

40.0 [1.575]

Pin Designation Function

Connections

1 Out 1 Output 1. Positive voltage ref. to Rtn.

2 Rtn Output return.

3–6 NC Not connected.

7 Sync Synchronization input.

adj Output voltage adjust. To set typical output voltage (VOi)

connect pin 8 to pin 9.

9 NOR Connection of Nominal Output voltage Resistor. (See Operating

Information, Output Voltage Adjust).

10 TOA Tur n-on/off input voltage adjust (VIon/VIoff). Used to decrease the

turn-on/off input voltage threshold.

11 RC Remote control and tur n-on/off input voltage adjust. Used to turn-on

and turn-off output and to set the turn-on/off input voltage threshold.

12–16 NC Not connected.

17 +In Positive input.

18 –In Negative input.

Case

The case consists of semiconductor grade

epoxy with embedded pins.

Coefficient of thermal expansion (CTE) is

typ. 15 ppm/°C.

Weight

Maximum 20 g (0.71 oz).

Connection Pins

Base material is copper (Cu), first plating

is nickel (Ni) and second (outer) plating is

palladium (Pd).

4EN/LZT 146 31 R1B © Ericsson Power Modules AB, March 2004

Thermal Data

Two-parameter model

This model provides a more precise description of the thermal

characteristics to be used for thermal calculations.

Thermally the power module can be considered as a component

and the case temperature can be used to characterize the

properties. The thermal data for a power module with the

substrate in contact with the case can be described with two

thermal resistances. One from the case to ambient air and one

from case to PB (Printed Board).

The thermal characteristics can be calculated from the following

formula:

TPB = (TC–TA)×(Rth C–PB +Rth C–A)/Rth C–A –Pd×Rth C–PB+TA

Where:

Pd: dissipated power, calculated as PO ×(l/h–1)

TC: max average case temperature

TA: ambient air temperature at the lower side of the power

module

TPB: temperature in the PB between the PKF connection pins

Rth C-PB: thermal resistance from case to PB under the power

module

Rth C-A: thermal resistance from case to ambient air

v: velocity of ambient air.

Rth C-PB is constant and Rth C-A is dependent on the air velocity.

Free convection is equal to an air velocity of approx.

0.2 – 0.3 m/s. See figure below.

Palladium plating is used on the terminal pins. A pin tem-perature

(Tp) in excess of the solder fusing temperature (+183°C for Sn/Pb

63/37) for more than 25 seconds and a peak temperature above

195°C, is required to guarantee a reliable solder joint.

Both pin 1 and pin 9 must be monitored.

No responsibility is assumed if these recommendations are

not strictly followed.

Reflow Soldering Information

The PKF series of DC/DC power modules are manufactured in

surface mount technology. Extra precautions must therefore be

taken when reflow soldering the surface mount version. Neglec-

ting the soldering information given below may result in perma-

nent damage or significant degradation of power module per-

formance.

The PKF series can be reflow soldered using IR, Natural

Convection, Forced Convection or Combined IR/Convection

Technologies. The high thermal mass of the component and its

effect on DT (°C) requires that particular attention be paid to

other temperature sensitive components.

IR Reflow technology may require the overall profile time to be

extended to approximately 8–10 minutes to ensure an acceptable

DT. Higher activity flux may be more suitable to overcome the

increase in oxidation and to avoid flux burn-up.

The general profile parameters detailed in the diagram, with this

ex-tended time to reach peak temperatures, would then be

suitable.

Note! These are maximum parameters. Depending on process

variations, an appropriate margin must be added.

EN/LZT 146 31 R1B © Ericsson Power Modules AB, March 2004 5

Electrical Data

Fundamental circuit diagram, Single output

Control

Safety

The PKF 2000 I series DC/DC power modules are designed in

accordance with EN 60 950,

Safety of information technology

equipment including electrical business equipment

SEMKO certificate

no. 9738248.

The PKF power modules are recognized by UL and meet the

applicable requirements in UL 1950

Safety of information technology

equipment

, the applicable Canadian safety requirements and UL

1012

Standard for power supplies

The DC/DC power module shall be installed in an end-use

equipment and considerations should be given to measuring the

case temperature to comply with TCmax when in operation.

Abnormal component tests are conducted with the input

protected by an external 3 A fuse. The need for repeating these

tests in the end-use appliance shall be considered if installed in a

circuit having higher rated devices.

The isolation is an operational insulation in accordance with

EN 60 950.

The DC/DC power module is intended to be supplied by isolated

secondary circuitry and shall be installed in compliance with the

requirements of the ultimate application. One pole of the input

and one pole of the output is to be grounded or both are to be

kept floating.

The terminal pins are only intended for connection to mating

connectors of internal wiring inside the end-use equipment.

These DC/DC power modules may be used in telephone

equipment in accordance with paragraph 34 A.1 of UL 1459

(Standard for Telephone Equipment, second edition).

The galvanic isolation is verified in an electric strength test. Test

voltage (VISO) between input and output is 1,500 Vdc for

60 s. In production the test duration is decreased to 1 s.

The capacitor between input and output has a value of 1 nF and

the leakage current is less than 1µA @ 26 Vdc.

The case is designed in non-conductive epoxy. Its flamma-bility

rating meets UL 94V-0. The oxygen index is 34%.

6EN/LZT 146 31 R1B © Ericsson Power Modules AB, March 2004

PKF 2111A PI, SI

TC = –30…+95°C, VI = 18...36V and pin 8 connected to pin 9 unless otherwise specified.

02A

Characteristics Conditions Output 1

min typ max Unit

Output voltage initial

setting and accuracy

VOi

Output voltage

tolerance band

IO = 0 A

Load regulation

ttr

Load transient voltage

Vtr

Temperature coefficient2)

Tcoeff

Ramp-up time

Start-up time

Output current

Max output power2)

POmax

Current limiting

threshold

Ilim TC <T

Cmax, VO = 4 V

Short circuit current

Isc VO = 0.2… 0.5 V, TA = +25°C

20 Hz… 5 MHz

Line regulation IO = 2 A

Load transient

recovery time

5.02 5.05 5.08 V

5.7 6.5 V

104 119 213 mV

+200 mV

–200 mV

IO = 2 A, TC = 40...90 ºC –0.34 mV/°C

2ms

3ms

10 W

2.24 2.45 3.0 A

2.72 3.6 A

13 50 mVp-p

80 dBmV

400 ms

0.6…50 MHz

Long term drift in-

cluded, TC>–10°C2)

Output

VI = 18…36V

VI = 24…36V 15

Output adjust range1) 2.76 6.27 V

4.85 5.25

IO = 0.2…2.0 A

VOac Output ripple & noise IO = 2 A

f = 100 Hz sine wave, 1Vp-p, VI = 27 V

(SVR = 20 log (1 Vp-p/VOp-p))

TC = +25°C, IO = 1.5A, VI = 27 V

IO =2 A, 0.1…0.9 × VOi

1) See also Operating Information.

2) See also Typical Characteristics.

SVR Supply voltage rejection (ac)

IO = 0.2…2.0 A, VI = 27 V

From VI connection to VO = 0.9 × VOi

IO = 0.2…2.0 A, VI = 27 V

load step = 1 A

50 dB

Idling voltage

Calculated value

2.1 2.4

Characteristics Conditions Unit

min typ max

PdPower dissipation

Miscellaneous

Efficiency

IO = 2 A

81 83

VI = 24 V

VI = 27 V

VI = 24 V

VI = 27 V 78 82

2.2 2.9 W

EN/LZT 146 31 R1B © Ericsson Power Modules AB, March 2004 7

PKF 2113 PI, SI

TC = –30…+95°C, VI = 18...36V and pin 8 connected to pin 9 unless otherwise specified.

Output

2 2.5

Characteristics Conditions Unit

min typ max

PdPower dissipation

Miscellaneous

Efficiency

IO = 1 A

83 86

VI = 24 V

VI = 27 V

VI = 24 V

VI = 27 V 83 86

2 2.5 W

01A

Characteristics Conditions Output 1

min typ max Unit

Output voltage initial

setting and accuracy

VOi

Output voltage

tolerance band

IO = 0A

Load regulation

ttr

Load transient voltage

Vtr

Temperature coefficient2)

Tcoeff

Ramp-up timetr

Start-up time

Output current

Max output power2)

POmax

Current limiting

threshold

Ilim TC <T

Cmax, VO = 9.6 V

Short circuit current

Isc VO = 0.2… 0.5 V, TA = +25°C

20 Hz… 5 MHz

Line regulation IO = 1 A

Load transient

recovery time

11.94 12.00 12.06 V

13.4 16.3 V

224 mV

+120 mV

–120 mV

IO = 1 A, TC = 40...90 ºC 0 mV/°C

2.3 ms

3.1 ms

12 W

1.4 A

2.1 A

15 50 mVp-p

80 dBmV

760 ms

0.6…50 MHz

Long term drift

included

VI = 18…36V 33 mV

Output adjust range1) 6.5 15.0 V

11.6 12.6 V

IO = 0.1…1.0 A

VOac Output ripple & noise IO = 1 A

f = 100 Hz sine wave, 1Vp-p, VI = 27 V

(SVR = 20 log (1 Vp-p/VOp-p))

TC = +25°C, IO = 0.8A, VI = 27 V

IO = 1 A, 0.1… 0.9 × VOi

1) See also Operating Information.

2) See also Typical Characteristics.

SVR Supply voltage rejection (ac)

IO = 0.1… 1.0 A, VI = 27 V

From VI connection to VO = 0.9 × VOi

IO = 0.1…1.0 A, VI = 27 V

IO = 0.1… 1.0 A, VI = 27 V

load step = 0.5 A

50 dB

Idling voltage

Calculated value

8EN/LZT 146 31 R1B © Ericsson Power Modules AB, March 2004

PKF 2610A PI, SI

TC = –30…+95°C, VI = 18...36V and pin 8 connected to pin 9 unless otherwise specified.

02A

Characteristics Conditions Output 1

min typ max Unit

Output voltage initial

setting and accuracy

VOi

Output voltage

tolerance band

IO = 0A

Load regulation

ttr

Load transient voltage

Vtr

Temperature coefficient2)

Tcoeff

Ramp-up time

Start-up time

Output current

Max output power2)

POmax

Current limiting

threshold

Ilim TC <T

Cmax

Short circuit current

Isc VO = 0.2… 0.5 V, TA = +25°C

20 Hz… 5 MHz

Line regulation IO = 2 A

Load transient

recovery time

3.27 3.30 3.33 V

3.8 4.6 V

120 mV

+180 mV

–

180 mV

IO = 2 A, TC = 40...90 ºC -0.55 mV/°C

2.3 ms

4.4 ms

6.6 W

2.2 2.6 A

2.9 A

15 50 mVp-p

80 dBmV

100 ms

20 Hz…50 MHz

Long term drift

included

Output

VI = 18…36V

VI = 27…36V 35

Output adjust range1) 1.80 3.80 V

3.17 3.43IO = 0.2…2.0 A

VOac Output ripple & noise IO = 2 A

f = 100 Hz sine wave, 1Vp-p, VI = 27 V

(SVR = 20 log (1 Vp-p/VOp-p))

TC = +25°C, IO = 1.0A, VI = 27 V

IO = 2 A, 0.1… 0.9 × VOi

1) See also Operating Information.

2) See also Typical Characteristics.

SVR Supply voltage rejection (ac)

IO = 0.2…2.0 A, VI = 27 V

From VI connection to VO = 0.9 × VOi

IO = 0.2…2.0 A, VI = 27 V

load step = 1 A

63 dB

Idling voltage

Characteristics Conditions Unit

min typ max

Efficiency

Miscellaneous

PdPower dissipation

IO = 2 A, VI = 27 V

IO = 2 A, VI = 27 V 1.6 2.1 W

76 81 %

Calculated value

EN/LZT 146 31 R1B © Ericsson Power Modules AB, March 2004 9

PKF 2611 PI, SI

TC = –30…+95°C, VI = 18...36V and pin 8 connected to pin 9 unless otherwise specified.

0 1.2 A

Characteristics Conditions Output 1

min typ max Unit

Output voltage initial

setting and accuracy

VOi

Output voltage

tolerance band

IO = 0A

Load regulation

ttr

Load transient voltage

Vtr

Temperature coefficient2)

Tcoeff

Ramp-up time

Start-up time

Output current

Max output power2)

POmax

Current limiting

threshold

Ilim TC <T

Cmax

Short circuit current

Isc VO = 0.2… 0.5 V, TA = +25°C

20 Hz… 5 MHz

Line regulation IO = 1.2 A

Load transient

recovery time

5.02 5.05 5.08 V

5.8 V

125 mV

+100 mV

–

100 mV

IO = 1.2 A, TC = 40...90 ºC -0.8 mV/°C

2.3 ms

4.6 ms

1.3 1.6 2.4 A

2.0 A

20 70 mVp-p

80 dBmV

50 ms

20 Hz…50 MHz

Long term drift

included

Output

VI = 18…36V

VI = 27…36V 10

Output adjust range1) 4.30 5.80 V

4.85 5.25 V

IO = 0.12…1.2 A

VOac Output ripple & noise IO = 1.2 A

f = 100 Hz sine wave, 1Vp-p, VI = 27 V

(SVR = 20 log (1 Vp-p/VOp-p))

TC = +25°C, IO = 0.5A, VI = 27 V

IO = 1.2 A, 0.1… 0.9 × VOi

1) See also Operating Information.

2) See also Typical Characteristics.

SVR Supply voltage rejection (ac)

IO = 0.12…1.2 A, VI = 27 V

From VI connection to VO = 0.9 × VOi

IO = 0.12…1.2 A, VI = 27 V

load step = 0.6 A

60 dB

Idling voltage

Characteristics Conditions Unit

min typ max

Efficiency

Miscellaneous

PdPower dissipation

IO = 1.2 A, VI = 27 V

IO = 1.2 A, VI = 27 V 1.2 1.6 W

79 83 %

Calculated value

10 EN/LZT 146 31 R1B © Ericsson Power Modules AB, March 2004

Typical Characteristics

PKF 2111A PI, SI

Output characteristic (typ) Power derating

00.35 0.7 1.05 1.4 1.75 2.1 2.45 2.8

4.0

4.2

4.4

4.6

4.8

5.0

5.2

5.4

5.6

Temperature coefficient Turn-on/turn-off input voltage

Efficiency (typ) @ TA = 25°C

Temperature coefficient Turn-on/turn-off input voltage

Output characteristic (typ) Power derating Efficiency (typ) @ TA = 25°C

PKF 2113A PI, SI

Dynamic load response (typ) @ +25°C

0.2 ms/div

100 mV/div

0.2 ms/div

100 mV/div

The output voltage

deviation is deter-

mined by the load

transient (dI/dt)

Load change:

dI/dt»4A/ms

The output voltage

deviation is deter-

mined by the load

transient (dI/dt)

Load change:

dI/dt»4A/ms

EN/LZT 146 31 R1B © Ericsson Power Modules AB, March 2004 11

Typical Characteristics

PKF 2610A PI, SI

Output characteristic (typ) Power derating

Temperaturecoefficient Turn-on/turn-off input voltage

Efficiency (typ) @ TA = 25°C

Temperaturecoefficient Turn-on/turn-off input voltage

Output characteristic (typ) Power derating Efficiency (typ) @ TA = 25°C

0.4 0.6 0.8 1.0 1.2

Load current (A)

Efficiency (%)

18 V

36 V

PKF 2611 PI, SI

12 EN/LZT 146 31 R1B © Ericsson Power Modules AB, March 2004

EMC Specifications

The fundamental switching frequency is 510 kHz ±10 kHz.

The signal is amplitude modulated with 1 kHz/80% and applied in

differential and common mode.

Radiated EMS (Electro-Magnetic Fields)

Radiated EMS is measured according to test methods in

IEC Standard publ. 801-3. No deviation outside the VO tolerance

band will occur under the following conditions:

Frequency range Voltage level

0.01...200 MHz 3 Vrms/m

200...1,000 MHz 3 Vrms/m

1...12 GHz 10 Vrms/m

ESD

Electro Static Discharge is tested according to IEC publ. 801-2. No

destruction will occur if the following voltage levels are applied to

any of the terminal pins:

Test Voltage level

Air discharge ±4 kV

Contact discharge ±2 kV

EFT

Electrical Fast Transients on the input terminals could affect the out-

put voltage regulation causing functional errors on the Printed Board

Assembly (PBA). The PKF power module withstand EFT levels of

0.5 kV keeping VO within the tolerance band and

2.0 kV without destruction. Tested according to IEC publ. 801-4.

Output Ripple & Noise (VOac)

Output ripple is measured as the peak to peak voltage of the funda-

mental switching frequency.

Conducted EMI (input teminals)

PKF series typical conducted EMI performance

Test set up

The PKF meets class A in VDE 0871/0878, FCC Part 15J, and CISPR 22

(EN 55022), except for the fundamental switching frequency.

Radiated EMI

Radiated emission of electromagnetic fields is measured at 10 m

distance.

30...100 MHz 60 dB mV/m

100...200 MHz 40 dB mV/m

200...230 MHz 30 dB mV/m

230...1,000 MHz 35 dB mV/m

1...10 GHz 46 dB mV/m

Frequency range Voltage level

0.15...300 MHz 1.0 Vrms

Conducted EMS

Electro Magnetic Susceptibility is measured by injection of

electrical disturbances on the input terminals. No deviation

outside the VO tolerance band will occur under the following

conditions:

Operating Information

Over Voltage Protection (OVP)

The remote control can be utilized also for OVP by using the ex-

ternal circuitry in figure 2. Resistor values are for 5V output app-

lications, but can easily be adjusted for other output voltages and

the desired OVP level.

Remote Control (RC)

Turn-on or turn-off can be realized by using the RC-pin. Normal

operation is achieved if pin 11 is open (NC). If pin 11 is con-

nected to pin 18 the power module turns off. To ensure safe turn-

off the voltage difference between pin 11 and 18 shall be less than

1.0V. RC is an TTL open collector compatible output with a sink

capacity >300 m A (see fig. 1).

Figure 1

Figure 2

Rtn (pin 2) In (pin 18)

Out1(pin1)

RC (pin 11)

15k 1.2k

TL431

10k 270

V , NOR (pin 8, 9)

adj

–In (pin 18)

Radj

Increase VO

NOR (pin 9)

V (pin 8)

adj

Radj

Decrease VO

Figure 4

RC (pin 11)

In (pin 18)

Ion

Increase V

Ion

RC (pin 11)

TOA (pin 10)

Ion

Decrease V

Ion

Figure 3

Fuse Considerations

To prevent excessive current from flowing through the input

supply line, in the case of a short-circuit across the converter in-

put, an external fuse should be installed in the non-earthed input

supply line. We recommend using a fuse rated at approximately

2 to 4 times the value calculated in the formula below:

Refer to the fuse manufacturer for further information.

Output Voltage Adjust (Vadj)

Output voltage, VO, can be adjusted by using an external resistor.

Typical adjust range is ±15%. If pin 8 and 9 is not connected to-

gether the output will decrease to a low value. To increase VO a

resistor should be connected between pin 8/9 and 18, and to

decrease VO a resistor should be connected between pin 8 and 9

(see fig. 4).

Typical required resistor value to increase VO is given by:

Radj = k5 × (k6 – VO)/(VO – VOi) kW

where VO is the desired output voltage,

VOi is the typical output voltage initial setting

and k5= 4.2 k6= 6.27 V PKF 2111A

k5= 4.2 k6= 15.0 V PKF 2113A

k5= 3.18 k6= 3.90V PKF 2610A

k5= 3.18 k6= 5.85V PKF 2611

Typical required resistor value to decrease V O is given by:

Radj = k7 × (VOi – VO)/(VO – k8) kW

where k7= 18.0 k8= 2.76 V PKF 2111A

k7= 18.6 k8= 6.50 V PKF 2113A

k7= 17.2 k8= 1.70V PKF 2610A

k7= 12.5 k8= 4.28V PKF 2611

Tur n-on/off Input Voltage

The power module monitors the input voltage and will turn on

and off at predetermined levels. The typical turn-on level (with-

out any external resistor) is 18.4V and the typical turn-off level is

17.0V, a slight deviation can occur due to tolerances in the

manufacturing process. These levels can be adjusted by means of

external resistors.

k1k2k3k4

1020 18.3 22 16.9 PKF 2111A, PKF 2113A

1020 18.4 27 17.0 PKF 2610A

1020 18.4 25 17.0 PKF 2611

Turn-off level. VIoff is the adjusted turn-off level and is deter-

mined by the following equation: VIoff = VIon – 1.5V (typical

value).

To increase VIon a resistor should be connected between pin 11

and 18 (see fig. 3).

The resistance is given by the following equation

(For VIon>18.4V):

RIon = (k1 – VIon)/(VIon – k2) kW

where k2 is the typical unadjusted turn-on input voltage (V).

To decrease VIon a resistor should be connected between pin 10

and 11 (see fig. 3). The resistance is given by the following

equation (for 17.0V < VIon >18.3V:

RIon = k3 × (VIon – k4)/(k2 – VIon) kW

POmax

(hmin × V Imin)

Iinmax =

Capacitive Load

The PKF series has no maximum limit for capacitive load on the

output. The power module may operate in current limiting mode

during start-up, affecting the ramp-up and the start-up time. For

optimum start performance we recommend maximum 100 mF/A

of IO. Connect capacitors at the point of load for best perfor-

mance.

Input and Output Impedance

Both the source impedance of the power feeding and the load im-

pedance will interact with the impedance of the DC/DC power

module.

It is most important to have the ratio between L and C as low

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

and output, as the power modules have a low energy storage

capability.

Use an electrolytic capacitor across the input if the source

inductance is larger than 10 mH. Their equivalent series resist-

ance together with the capacitance acts as a lossless damping fil-

ter. Suitable capacitor values are in the range 10–100 mF.

Current Limiting Protection (Ilim)

The output power is limited at loads above the output current

limiting threshold (Ilim), specified as a minimum value.

Parallel Operation

Paralleling of several converters is easily accomplished by direct

connection of the output voltage terminal pins. The load regula-

tion characteristic is specifically designed for optimal paralleling

performance. Load sharing between converters will be within

±10%. It is recommended not to exceed PO = n × 0.9 × POmax,

where POmax is the maximum converter output power and n the

number of paralleled converters, to prevent overloading any of the

converters and thereby decreasing the reliability performance.

Synchronization (Sync)

It is possible to synchronize the switching frequency to an

external symmetrical clock signal. The input is TTL-compatible

and referenced to the input pin 18.

Delivery Package Information

Tubes

The PKF-series is delivered in tubes (designated by /A) with a

length of 500 mm (19.69 in), see fig. 5.

Figure 5

Trays

SMD versions, SI, can be delivered in standard JEDEC trays

(designated by /B) on request, see fig. 6. For more information,

please contact your local Ericsson sales office.

Figure 6

10.16

(0.4)

12.19

(0.48)

315.0

(12.4)

135.9

(5.35)

322.6

(12.7)

All dimensions in mm (in)

High level 2.2 6.5 V

Threshold level*) 1.2 1.7 2.2 V

Low level 0 0.4 V

Sink current 1.5 mA

Sync. frequency 520 688 kHz

*) Rise time <10ns

Characteristics min typ max unit

Specification

Material: Antistatic coated PVC

Max surface resistance: 1011W/

Color: Transparent

Capacity: 10 power modules/tube

Weight: Typ. 60 g

End stops: Pins

Specification

Material: Polypropylene (PP)

Max temperature: 125ºC

Max surface resistance: 105W/•

Color: Black

Quality

Reliability

Meantime between failure (MTBF) is calculated to >4.9 million

hours at full output power and a pin temperature of +50°C

(TA = +40°C), using the Ericsson failure rate data system.

The Ericsson failure rate data system is based on field failure

rates and is continously 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 see Design Note 002.

Tape & Reel

SMD versions, SI, can be delivered in standard tape & reel pack-

age (designated by /C) on request, see fig. 7. For more informa-

tion, please contact your local Ericsson sales office.

Capacity: 15 power modules/tray

Stacking pitch: 10.16 mm

Weight: Typ. 130 g

Min. order quantity: 150 pcs (one box contains 10 full trays)

Figure 7

Specification

Tape material: Conductive polystyrene (PS)

Tape width: 72 mm

Tape pitch: 36 mm

Max surface resistance: 105W/

Tape color: Black

Cover tape color: Transparent

Reel diameter: 13"

Reel hub diameter: 7"

Reel capacity: 150 power modules/reel

Full reel weight: Typ. 3.7 kg

Min. order quantity: 300 pcs (one box contains two reels)

Quality Statement

The products are designed and manufactured in an industrial en-

vironment where quality systems and methods like ISO 9000, 6s

and SPC, are intensively in use to boost the continuous improve-

ments strategy. Infant mortality or early failures in the products

are screened out by a burn-in procedure and an ATE-based final

test.Conservative design rules, design reviews and product qualifi-

cations, plus the high competence of an engaged work force, con-

tribute to the high quality of our products.

Warranty

Ericsson Power Modules warrants to the original purchaser or

end user that the products conform to this Data Sheet and are free

from material and workmanship defects for a period of five (5)

years from the date of manufacture, if the product is used within

specified conditions and not opened. In case the product is dis-

continued, claims will be accepted up to three (3) years from the

date of the discontinuation.

For additional details on this limited warranty please refer to

Ericsson Power Modules AB’s “General Terms and Conditions

of Sales”, or individual contract documents.

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 mal-

functions of product can cause injury to a person’s health or

life).

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

No responsibility is assumed for the consequences of its use nor for any infringement

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

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

Ericsson Power Modules. These products are sold only according to

Ericsson Power Modules’ general conditions of sale, unless otherwise confirmed in

writing. Specifications subject to change without notice.

EN/LZT 146 31 R1B

*) See also Delivery Package Information

Product Program

VO/IO max Ordering No.*)

PKF 2111A PI

PKF 2113A PI

PKF 2610A PI

PKF 2611A PI

PKF 2111A SI

PKF 2113A SI

PKF 2610A SI

PKF 2611A SI

Output 1

VIPO max Through-hole SMD

10 W

12 W

6.6 W

6.0 W

5 V/2.0 A

12 V/1.0 A

3.3 V/2.0 A

0.5 V/1.2 A

24 V

Datasheet

Ericsson Power Modules

SE-141 75 Kungens Kurva, Sweden

Telephone: +46 8 568 69620

For local sales contacts, please refer to our website

www.ericsson.com/powermodules

or call: Int +46 8 568 69620, Fax: +46 8 568 69599

Americas

Ericsson Inc., Power Modules

+1-972 583 5254, +1-972 583 6910

Americas

Asia/Pacific Ericsson Ltd.

+852-2590-2433