Public
PRODUCT SPECIFICATION 1 (3)
Prepared (also subject responsible if other) No.
SEC/D Kevin Zhou 1/1301-BMR63701
Approved Checked Date Rev Reference
SEC/D Kevin Zhou MICOSPE 2007-1-29 F
Key Features
• Industry standard quarter-brick and optional double
Pin-Out. 57.9 x 36.8 x 9.1 mm (2.28 x 1.45 x 0.35 in.)
• High efficiency, typ. 94 % at 12 Vout half load
• 2250 Vdc input to output isolation
• Meets isolation requirements equivalent to basic
insulation according to IEC/EN/UL 60950
• More than 2.7 million hours MTBF
General Characteristics
• Over temperature protection
• Over current limit protection
• Over voltage protection
• Remote control
• Output voltage adjust function
• Highly automated manufacturing ensures quality
• ISO 9001/14001 certified supplier
Safety Approvals Design for Environment
Meets requirements in high-
temperature lead-free soldering
processes.
Public
TABLE OF CONTENTS 1 (1)
Prepared (also subject responsible if other) No.
EFEIDEN 001 52- EN/LZT 146 307 Uen
Contents
General Information ............................................................. 2
Safety Specification ............................................................. 3
Absolute Maximum Ratings ............................................................. 4
Product Program Ordering No.
2.5V, 55A / 137.5W Electrical Specification PKM4119C PINB.................................. 5
3.3V, 50A / 165W Electrical Specification PKM4110C PINB.................................. 8
5.0V, 40A / 200W Electrical Specification PKM4211C PINB................................ 11
12.0V, 17A / 204W Electrical Specification PKM4213C PINBSP ........................... 14
EMC Specification ........................................................... 17
Operating Information ........................................................... 18
Thermal Consideration ........................................................... 20
Connections ........................................................... 20
Mechanical Information ........................................................... 21
Soldering Information ........................................................... 25
Delivery Information ........................................................... 25
Product Qualification Specification ........................................................... 26
E
PKM 4000C PINB Series
DC/DC converters, Input 36-75 V, Output 55 A/204 W
EN/LZT 146 307 R4A August 2008
© Ericsson Power Modules AB
Technical Specification
Public
PRODUCT SPECIFICATION 2 (3)
Prepared (also subject responsible if other) No.
SEC/D Kevin Zhou 1/1301-BMR63701
Approved Checked Date Rev Reference
SEC/D Kevin Zhou MICOSPE 2007-1-29 F
General Information
Ordering Information
See Contents for individual product ordering numbers.
Option Suffix Ordering No.
Baseplate
Single Pin*
Positive Remote Control Logic
Increased stand-off height
Lead length 3.69 mm (0.145 in)
Lead length 4.57 mm (0.180 in)
SP
P
M
LA
LB
PKM 4110C PI
PKM 4211C PINBSP
PKM 4110C PIPNB
PKM 4110C PINBM
PKM 4110C PINBLA
PKM 4110C PINBLB
Note: As an example a positive logic, increased standoff, short pin product
would be PKM 4110C PIPNBMLA.
*Single Pin option only for current less than 50A.
Reliability
The Mean Time Between Failure (MTBF) is calculated at full
output power and an operating ambient temperature (TA) of
+40°C, which is a typical condition in Information and
Communication Technology (ICT) equipment. Different
methods could be used to calculate the predicted MTBF
and failure rate which may give different results. Ericsson
Power Modules currently uses two different methods,
Ericsson failure rate data system DependTool and
Telcordia SR332.
Predicted MTBF for the series is:
- 2.7 million hours according to DependTool.
- 1.4 million hours according to Telcordia SR332, issue
1, Black box technique.
The Ericsson failure rate data system is based on field
tracking data. The data corresponds to actual failure rates
of components used in ICT equipment in temperature
controlled environments (TA = -5...+65°C).
Telcordia SR332 is a commonly used standard method
intended for reliability calculations in ICT equipment. The
parts count procedure used in this method was originally
modelled on the methods from MIL-HDBK-217F, Reliability
Predictions of Electronic Equipment. It assumes that no
reliability data is available on the actual units and devices
for which the predictions are to be made, i.e. all predictions
are based on generic reliability parameters.
Compatibility with RoHS requirements
The products are compatible with the relevant clauses and
requirements of the RoHS directive 2002/95/EC and have a
maximum concentration value of 0.1% by weight in
homogeneous materials for lead, mercury, hexavalent
chromium, PBB and PBDE and of 0.01% by weight in
homogeneous materials for cadmium.
Exemptions in the RoHS directive utilized in Ericsson
Power Modules products include:
- Lead in high melting temperature type solder (used to
solder the die in semiconductor packages)
- Lead in glass of electronics components and in
electronic ceramic parts (e.g. fill material in chip
resistors)
- Lead as an alloying element in copper alloy containing
up to 4% lead by weight (used in connection pins
made of Brass)
Quality Statement
The products 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.
Warranty
Warranty period and conditions are defined in Ericsson
Power Modules General Terms and Conditions of Sale.
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).
E
PKM 4000C PINB Series
DC/DC converters, Input 36-75 V, Output 55 A/204 W
EN/LZT 146 307 R4A August 2008
© Ericsson Power Modules AB
Technical Specification
2
Public
PRODUCT SPECIFICATION 3 (3)
Prepared (also subject responsible if other) No.
SEC/D Kevin Zhou 1/1301-BMR63701
Approved Checked Date Rev Reference
SEC/D Kevin Zhou MICOSPE 2007-1-29 F
Safety Specification
General information
Ericsson Power Modules DC/DC converters and DC/DC
regulators are designed in accordance with safety
standards IEC/EN/UL60950,
Safety of Information
Technology Equipment
.
IEC/EN/UL60950 contains requirements to prevent injury
or damage due to the following hazards:
• Electrical shock
• Energy hazards
• Fire
• Mechanical and heat hazards
• Radiation hazards
• Chemical hazards
On-board DC-DC converters are defined as component
power supplies. As components they cannot fully comply
with the provisions of any Safety requirements without
“Conditions of Acceptability”. It is the responsibility of the
installer to ensure that the final product housing these
components complies with the requirements of all
applicable Safety standards and Directives for the final
product.
Component power supplies for general use should comply
with the requirements in IEC60950, EN60950 and
UL60950
“Safety of information technology equipment”.
There are other more product related standards, e.g.
IEEE802.3af “Ethernet LAN/MAN Data terminal equipment
power”, and ETS300132-2 “Power supply interface at the
input to telecommunications equipment; part 2: DC”, but
all of these standards are based on IEC/EN/UL60950 with
regards to safety.
Ericsson Power Modules DC/DC converters and DC/DC
regulators are UL60950 recognized and certified in
accordance with EN60950.
The flammability rating for all construction parts of the
products meets requirements for V-0 class material
according to IEC 60695-11-10.
The products should be installed in the end-use
equipment, in accordance with the requirements of the
ultimate application. Normally the output of the DC/DC
converter is considered as SELV (Safety Extra Low
Voltage) and the input source must be isolated by
minimum Double or Reinforced Insulation from the primary
circuit (AC mains) in accordance with IEC/EN/UL60950.
Isolated DC/DC converters
It is recommended that a slow blow fuse with a rating
twice the maximum input current per selected product be
used at the input of each DC/DC converter. If an input filter
is used in the circuit the fuse should be placed in front of
the input filter.
In the rare event of a component problem in the input filter
or in the DC/DC 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 so as 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 or 2250 Vdc for 60 seconds (refer to product
specification).
Leakage current is less than 1 µA at nominal input voltage.
24 V DC systems
The input voltage to the DC/DC converter is SELV (Safety
Extra Low Voltage) and the output remains SELV under
normal and abnormal operating conditions.
48 and 60 V DC systems
If the input voltage to Ericsson Power Modules DC/DC
converter is 75 Vdc 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 Vdc.
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/UL60950.
Non-isolated DC/DC regulators
The input voltage to the DC/DC regulator is SELV (Safety
Extra Low Voltage) and the output remains SELV under
normal and abnormal operating conditions.
E
PKM 4000C PINB Series
DC/DC converters, Input 36-75 V, Output 55 A/204 W
EN/LZT 146 307 R4A August 2008
© Ericsson Power Modules AB
Technical Specification
3
Limited Internal
PRODUCT SPECIFICATION 1 (5)
Prepared (also subject responsible if other) No.
MICOSPE 2/1301-BMR 637 01/7 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) (EBAOCMA) 2006-12-20 A
Absolute Maximum Ratings
Characteristics min typ max Unit
Tref Operating Temperature (see Thermal Consideration section) -40 +110 °C
TS Storage temperature -55 +125 °C
VI Input voltage -0.5 +80 V
Viso Isolation voltage baseplate (input to output, input & output to baseplate test voltage) 2250 Vdc
Viso Isolation voltage no baseplate option (input to output) 1500 Vdc
Vtr Input voltage transient (Tp 100 ms) 100 V
Positive logic option -0.5 +15 V
VRC Remote Control pin voltage
(see Operating Information section) Negative logic -0.5 +15 V
Vadj Adjust pin voltage (see Operating Information section) -0.5 +2 V
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 unspecified manner.
Fundamental Circuit Diagram
- Out
+ Out
+ In Secondary
- Out
- Sense
Vadj
+ Sense
+ Out
- In
RC ControlControl
Isolated
Feedback
Primary
Voltage
Monitoring
E
PKM 4000C PINB Series
DC/DC converters, Input 36-75 V, Output 55 A/204 W
EN/LZT 146 307 R4A August 2008
© Ericsson Power Modules AB
Technical Specification
4
Limited Internal
PRODUCT SPECIFICATION 2 (5)
Prepared (also subject responsible if other) No.
MICOSPE 2/1301-BMR 637 01/2 Uen
Approved Checked Date Rev Reference
SEC/D (Kevin Zhou) (EBAOCMA) 2006-09-13 D
2.5 V Electrical Specification PKM 4119C PINB
Tref = -40 to +90ºC, VI = 36 to 75 V, unless otherwise specified under Conditions.
Typical values given at: Tref = +25°C, VI= 53 V, max IO , unless otherwise specified under Conditions.
Characteristics Conditions min typ max Unit
VI Input voltage range 36 75 V
VIoff Turn-off input voltage Decreasing input voltage 32 V
VIon Turn-on input voltage Increasing input voltage 34 V
CI Internal input capacitance 5.7
μF
PO Output power Output voltage initial setting 0 137.5 W
SVR Supply voltage rejection (ac) f = 100 Hz sinewave, 1 Vp-p 55 dB
50 % of max IO 91.5
max IO 88 89.2
50 % of max IO , VI = 48 V 91.7
η Efficiency
max IO , VI = 48 V 88.9
%
Pd Power Dissipation max IO 18.8 W
Pli Input idling power IO= 0, VI = 53 V 2.6 W
PRC Input standby power VI = 53 V (turned off with RC) 100 mW
fs Switching frequency 0 -100% of max IO 180 200 220 kHz
Output voltage initial setting and
accuracy 2.45 2.50 2.55 V
VOi
Output adjust range
Tref = +25°C, VI = 53 V, IO = max IO
Vadj, see Note 1 2.21 2.81 V
Output voltage tolerance band 10-100% of max IO 2.40 2.60 V
Idling voltage IO = 0 2.40 2.60 V
Line regulation max IO 15 mV
VO
Load regulation VI = 53 V, 1-100% of max IO 15 mV
Vtr Load transient
voltage deviation ±250 mV
ttr Load transient recovery time
VI = 53 V, Load step 25-75-25 % of
max IO, di/dt = 1 A/μs,
see Note 2 100 us
tr Ramp-up time
(from 10−90 % of VOi) 5 10 15 ms
ts Start-up time
(from VI connection to 90% of VOi)
10-100% of max IO
10 15 50 ms
IO Output current 0 55 A
Ilim Current limit threshold Vo = 2.25 V, Tref < max Tref 63 A
Isc Short circuit current Tref = 25ºC, 74 A
VOac Output ripple & noise See ripple & noise section,
max IO, VO. 80 130 mVp-p
OVP Over Voltage Protection Tref = +25°C, VI = 53 V, IO = 0-100%
of max IO 3.4 V
Note 1: When using Vadj function, max output power (PO) must not be exceeded
Note 2: Output filter according to Ripple & Noise section
E
PKM 4000C PINB Series
DC/DC converters, Input 36-75 V, Output 55 A/204 W
EN/LZT 146 307 R4A August 2008
© Ericsson Power Modules AB
Technical Specification
5
Limited Internal
PRODUCT SPECIFICATION 3 (5)
Prepared (also subject responsible if other) No.
MICOSPE 2/1301-BMR 637 01/2 Uen
Approved Checked Date Rev Reference
SEC/D (Kevin Zhou) (EBAOCMA) 2006-09-13 D
2.5 V Typical Characteristics PKM 4119C PINB
Efficiency Power Dissipation
83
85
87
89
91
93
0 5 10 15 20 25 30 35 40 45 50 55 [A]
[%]
36 V
48 V
53 V
75 V
0
4
8
12
16
20
0 5 10 15 20 25 30 35 40 45 50 55 [A]
[W]
36 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at Tref = +25°C Dissipated power vs. load current and input voltage at
Tref = +25°C
Output Current Derating Thermal Resistance
0,0
10,0
20,0
30,0
40,0
50,0
60,0
20 30 40 50 60 70 80 90 100 [°C]
[A]
3.0 m/s
2.5 m/s
2.0 m/s
1.5 m/s
1.0 m/s
Nat. Conv.
0
2
4
6
0,0 0,5 1,0 1,5 2,0 2,5 3,0 [m/s]
[°C/W]
Available load current vs. ambient air temperature and airflow at
VI = 53 V. See Thermal Consideration section.
Thermal resistance vs. airspeed measured at the converter. Tested in
wind tunnel with airflow and test conditions as per
the Thermal consideration section.
2,40
2,45
2,50
2,55
2,60
0 5 10 15 20 25 30 35 40 45 50 55 [A]
[V]
36 V
48 V
53 V
75 V
0,0
0,5
1,0
1,5
2,0
2,5
3,0
55,0 60,0 65,0 70,0 75,0 80,0 [A]
[V]
36 V
48 V
53 V
75 V
Output voltage vs. load current at Tref = +25°C Output voltage vs. load current at IO > max IO , Tref = +25°C
E
PKM 4000C PINB Series
DC/DC converters, Input 36-75 V, Output 55 A/204 W
EN/LZT 146 307 R4A August 2008
© Ericsson Power Modules AB
Technical Specification
6
Limited Internal
PRODUCT SPECIFICATION 4 (5)
Prepared (also subject responsible if other) No.
MICOSPE 2/1301-BMR 637 01/2 Uen
Approved Checked Date Rev Reference
SEC/D (Kevin Zhou) (EBAOCMA) 2006-09-13 D
Place your
graph here
Place your graph here
Place your
graph here
2.5 V Typical Characteristics PKM 4119C PINB
Start-up Shut-down
Start-up enabled by connecting VI at:
Tref = +25°C, IO = 55 A resistive load,
VI = 53 V.
Top trace: output voltage (5 V/div.).
Bottom trace: input voltage (20 V/div.).
Time scale: 5 ms/div..
Shut-down enabled by disconnecting VI at:
Tref = +25°C, IO = 10 A load,
VI = 53 V
Top trace: output voltage (1 V/div.).
Bottom trace: input voltage (20 V/div.).
Time scale: 0.1 ms/div..
Output Ripple & Noise Output Load Transient Response
Output voltage ripple (50mV/div.) at:
Tref = +25°C, IO = 55 A resistive load,
VI = {53 V}. Time scale: 5 μs/div.
See the filter in the Output ripple and noise
section (EMC Specification).
Output voltage response to load current step-
change (13.8-41.4-13.8 A) at:
Tref =+25°C, VI = 53 V.
Top trace: output voltage (100mV/div.).
Bottom trace: load current (13.8 A/div.).
Time scale: {0.1 ms/div.}.
Output Voltage Adjust (see operating information)
Passive trim
The resistor value for an adjusted output voltage is calculated by using
the following equations:
Output Voltage Adjust Upwards, Increase:
Radj= 5.11((2.5(100+Δ%))/1.225Δ%-(100+2Δ%)/Δ%) kOhm
Eg Increase 4% =>Vout =2.6 Vdc
5.11(2.5(100+4)/1.225x4-(100+2x4)/4 = 133 kOhm
Output Voltage Adjust Downwards, Decrease:
Radj= 5.11(100/Δ%-2) kOhm
Eg Decrease 2% =>Vout = 2.45 Vdc
5.11(100/2-2)= 245 kOhm
The PKM4000C series DC/DC converters can be
offered with a baseplate. Baseplate helps to cool
hotspots more efficient during heavy load. The
baseplate have approximately 5°C improved
derating compared to datasheet showing non
baseplated PKM4000C. The baseplate is intended
to be mounted on a cold wall to transfer heat away
from the converter. By mounting PKM4000C in this
way thermal derating can be improved by more
than 10°C .
E
PKM 4000C PINB Series
DC/DC converters, Input 36-75 V, Output 55 A/204 W
EN/LZT 146 307 R4A August 2008
© Ericsson Power Modules AB
Technical Specification
7
Limited Internal
PRODUCT SPECIFICATION 2 (5)
Prepared (also subject responsible if other) No.
MICOSPE 2/1301-BMR 637 01/1 Uen
Approved Checked Date Rev Reference
SEC/D (Kevin Zhou) (MICJAKE) 2006-09-12 B
3.3 V Electrical Specification PKM 4110C PINB
Tref = -40 to +90ºC, VI = 36 to 75 V, unless otherwise specified under Conditions.
Typical values given at: Tref = +25°C, VI= 53 V, max IO , unless otherwise specified under Conditions.
Characteristics Conditions min typ max Unit
VI Input voltage range 36 75 V
VIoff Turn-off input voltage Decreasing input voltage 32 V
VIon Turn-on input voltage Increasing input voltage 34 V
CI Internal input capacitance 5.7
μF
PO Output power Output voltage initial setting 0 165 W
SVR Supply voltage rejection (ac) f = 100 Hz sinewave, 1 Vp-p 50 dB
50 % of max IO 92.2
max IO 89 90.3
50 % of max IO , VI = 48 V 92.3
η Efficiency
max IO , VI = 48 V 90.1
%
Pd Power Dissipation max IO 20.4 W
Pli Input idling power IO= 0, VI = 53 V 3.4 W
PRC Input standby power VI = 53 V (turned off with RC) 100 mW
fs Switching frequency 0 -100% of max IO 145 155 165 kHz
Output voltage initial setting and
accuracy 3.24 3.36 V
VOi
Output adjust range
Tref = +25°C, VI = 53 V, IO = max IO
Vadj, see Note 1 2.97 3.63 V
Output voltage tolerance band 10-100% of max IO 3.23 3.37 V
Idling voltage IO = 0 3.23 3.37 V
Line regulation max IO 15 mV
VO
Load regulation VI = 53 V, 1-100% of max IO 15 mV
Vtr Load transient
voltage deviation ±500 mV
ttr Load transient recovery time
VI = 53 V, Load step 25-75-25 % of
max IO, di/dt = 1 A/μs,
see Note 2 100 us
tr Ramp-up time
(from 10−90 % of VOi) 7 10 30 ms
ts Start-up time
(from VI connection to 90% of VOi)
10-100% of max IO
10 15 50 ms
IO Output current 0 50 A
Ilim Current limit threshold Vo = 2.97 V, Tref < max Tref 61 A
Isc Short circuit current Tref = 25ºC, VO = < VOnom * 0.1 65 A
VOac Output ripple & noise See ripple & noise section,
max IO, VO. 60 125 mVp-p
OVP Over Voltage Protection Tref = +25°C, VI = 53 V, IO = 0-100%
of max IO 4.2 V
Note 1: When using Vadj function, max output power (PO) must not be exceeded
Note 2: Output filter according to Ripple & Noise section
E
PKM 4000C PINB Series
DC/DC converters, Input 36-75 V, Output 55 A/204 W
EN/LZT 146 307 R4A August 2008
© Ericsson Power Modules AB
Technical Specification
8
Limited Internal
PRODUCT SPECIFICATION 3 (5)
Prepared (also subject responsible if other) No.
MICOSPE 2/1301-BMR 637 01/1 Uen
Approved Checked Date Rev Reference
SEC/D (Kevin Zhou) (MICJAKE) 2006-09-12 B
3.3 V Typical Characteristics PKM 4110C PINB
Efficiency Power Dissipation
83
85
87
89
91
93
0 5 10 15 20 25 30 35 40 45 50 [A ]
[%]
36 V
48 V
53 V
75 V
0
4
8
12
16
20
0 5 10 15 20 25 30 35 40 45 50 [A]
[W]
36 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at Tref = +25°C Dissipated power vs. load current and input voltage at
Tref = +25°C
Output Current Derating Thermal Resistance
0,0
10,0
20,0
30,0
40,0
50,0
20 30 40 50 60 70 80 90 100 [°C]
[A]
3.0 m/s
2.5 m/s
2.0 m/s
1.5 m/s
1.0 m/s
Nat. Conv.
0
2
4
6
0,0 0,5 1,0 1,5 2,0 2,5 3,0 [m/s]
[°C/W]
Available load current vs. ambient air temperature and airflow at
VI = 53 V. See Thermal Consideration section.
Thermal resistance vs. airspeed measured at the converter. Tested in
wind tunnel with airflow and test conditions as per
the Thermal consideration section.
3,20
3,25
3,30
3,35
3,40
0 5 10 15 20 25 30 35 40 45 50 [A]
[V]
36 V
48 V
53 V
75 V
0,0
1,0
2,0
3,0
4,0
50,0 55,0 60,0 65,0 70,0 75,0 [A]
[V]
36 V
48 V
53 V
75 V
Output voltage vs. load current at Tref = +25°C Output voltage vs. load current at IO > max IO , Tref = +25°C
E
PKM 4000C PINB Series
DC/DC converters, Input 36-75 V, Output 55 A/204 W
EN/LZT 146 307 R4A August 2008
© Ericsson Power Modules AB
Technical Specification
9
Limited Internal
PRODUCT SPECIFICATION 4 (5)
Prepared (also subject responsible if other) No.
MICOSPE 2/1301-BMR 637 01/1 Uen
Approved Checked Date Rev Reference
SEC/D (Kevin Zhou) (MICJAKE) 2006-09-12 B
Place your
graph here
Place your graph here
Place your
graph here
3.3 V Typical Characteristics PKM 4110C PINB
Start-up Shut-down
Start-up enabled by connecting VI at:
Tref = +25°C, IO = 50 A resistive load,
VI = 53 V.
Top trace: output voltage (1 V/div.).
Bottom trace: input voltage (20 V/div.).
Time scale: 5 ms/div..
Shut-down enabled by disconnecting VI at:
Tref = +25°C, IO = 10 A load,
VI = 53 V
Top trace: output voltage (1 V/div.).
Bottom trace: input voltage (20 V/div.).
Time scale: 0.1 ms/div..
Output Ripple & Noise Output Load Transient Response
Output voltage ripple (20mV/div.) at:
Tref = +25°C, IO = 50 A resistive load,
VI = {53 V}. Time scale: 5 μs/div.
See the filter in the Output ripple and noise
section (EMC Specification).
Output voltage response to load current step-
change (12.5-47.5-12.5 A) at:
Tref =+25°C, VI = 53 V.
Top trace: output voltage (200mV/div.).
Bottom trace: load current (12.5 A/div.).
Time scale: {0.1 ms/div.}.
Output Voltage Adjust (see operating information)
Passive trim
The resistor value for an adjusted output voltage is calculated by using
the following equations:
Output Voltage Adjust Upwards, Increase:
Radj= 5.11((3.3(100+Δ%))/1.225Δ%-(100+2Δ%)/Δ%) kOhm
Eg Increase 4% =>Vout =3.43 Vdc
5.11(3.3(100+4)/1.225x4-(100+2x4)/4 = 220 kOhm
Output Voltage Adjust Downwards, Decrease:
Radj= 5.11(100/Δ%-2) kOhm
Eg Decrease 2% =>Vout = 3.23 Vdc
5.11(100/2-2)= 245 kOhm
The PKM4000C series DC/DC converters can be
offered with a baseplate. Baseplate helps to cool
hotspots more efficient during heavy load. The
baseplate have approximately 5°C improved
derating compared to datasheet showing non
baseplated PKM4000C. The baseplate is intended
to be mounted on a cold wall to transfer heat away
from the converter. By mounting PKM4000C in this
way thermal derating can be improved by more
than 10°C .
E
PKM 4000C PINB Series
DC/DC converters, Input 36-75 V, Output 55 A/204 W
EN/LZT 146 307 R4A August 2008
© Ericsson Power Modules AB
Technical Specification
10
Limited Internal
PRODUCT SPECIFICATION 2 (5)
Prepared (also subject responsible if other) No.
MICOSPE 2/1301-BMR 637 01/3 Uen
Approved Checked Date Rev Reference
MPM/BM/Y (Maria Rosendahl) (MICJAKE) 2006-09-12 F
5.0 V Electrical Specification PKM 4211C PINB
Tref = -40 to +90ºC, VI = 36 to 75 V, unless otherwise specified under Conditions.
Typical values given at: Tref = +25°C, VI= 53 V, max IO , unless otherwise specified under Conditions.
Characteristics Conditions min typ max Unit
VI Input voltage range 36 75 V
VIoff Turn-off input voltage Decreasing input voltage 32 V
VIon Turn-on input voltage Increasing input voltage 34 V
CI Internal input capacitance 5.7
µF
PO Output power Output voltage initial setting 0 200 W
SVR Supply voltage rejection (ac) f = 100 Hz sinewave, 1 Vp-p 70 dB
50 % of max IO 92.9
max IO 90 91.3
50 % of max IO , VI = 48 V 93.0
η Efficiency
max IO , VI = 48 V 91.2
%
Pd Power Dissipation max IO 22.2 W
Pli Input idling power IO= 0, VI = 53 V 3.1 W
PRC Input standby power VI = 53 V (turned off with RC) 100 mW
fs Switching frequency 0 -100% of max IO 180 200 220 kHz
Output voltage initial setting and
accuracy 4.90 5.00 5.10 V
VOi
Output adjust range
Tref = +25°C, VI = 53 V, IO = 40.0 A
Vadj, see Note 1 4.50 5.50 V
Output voltage tolerance band 10-100% of max IO 4.80 5.20 V
Idling voltage IO = 0 4.80 5.20 V
Line regulation max IO 35 mV
VO
Load regulation VI = 53 V, 1-100% of max IO 35 mV
Vtr Load transient
voltage deviation ±700 mV
ttr Load transient recovery time
VI = 53 V, Load step 25-75-25 % of
max IO, di/dt = 1 A/µs,
see Note 2 100 Us
tr Ramp-up time
(from 10−90 % of VOi) 7 13 30 ms
ts Start-up time
(from VI connection to 90% of VOi)
10-100% of max IO
9 15 50 ms
IO Output current 0 40 A
Ilim Current limit threshold Vo = 4.5 V, Tref < max Tref 54 A
Isc Short circuit current Tref = 25ºC, VO = < VOnom * 0.1 67 A
VOac Output ripple & noise See ripple & noise section,
max IO, VO. 60 150 mVp-p
OVP Over Voltage Protection Tref = +25°C, VI = 53 V, IO = 0-100%
of max IO 6.2 V
Note 1: When using Vadj function, max output power (PO) must not be exceeded
Note 2: Output filter according to Ripple & Noise section
E
PKM 4000C PINB Series
DC/DC converters, Input 36-75 V, Output 55 A/204 W
EN/LZT 146 307 R4A August 2008
© Ericsson Power Modules AB
Technical Specification
11
Limited Internal
PRODUCT SPECIFICATION 3 (5)
Prepared (also subject responsible if other) No.
MICOSPE 2/1301-BMR 637 01/3 Uen
Approved Checked Date Rev Reference
MPM/BM/Y (Maria Rosendahl) (MICJAKE) 2006-09-12 F
5.0 V Typical Characteristics
PKM 4211C PINB
Efficiency
Power Dissipation
85
87
89
91
93
95
0,0 5,0 10,0 15,0 20,0 25,0 30,0 35,0 40,0 [A]
[%]
36 V
48 V
53 V
75 V
0
4
8
12
16
20
24
0,0 5,0 10,0 15,0 20,0 25,0 30,0 35,0 40,0[A]
[W]
36 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at Tref = +25°C
Dissipated power vs. load current and input voltage at
Tref = +25°C
Output Current Derating Thermal Resistance
0,0
10,0
20,0
30,0
40,0
20 30 40 50 60 70 80 90 100 [°C]
[A]
3.0 m/s
2.5 m/s
2.0 m/s
1.5 m/s
1.0 m/s
Nat. Conv.
2
4
6
8
0,0 0,5 1,0 1,5 2,0 2,5 3,0[m /s ]
[°C/W]
Available load current vs. ambient air temperature and airflow at
VI = 53 V. See Thermal Consideration section.
Thermal resistance vs. airspeed measured at the converter.
Tested in wind tunnel with airflow and test conditions as per
the Thermal consideration section.
Output Characteristics Current Limit Characteristics
4,80
4,90
5,00
5,10
5,20
0,0 5,0 10,0 15,0 20,0 25,0 30,0 35,0 40,0 [A]
[V]
36 V
48 V
53 V
75 V
0,0
1, 0
2,0
3,0
4,0
5,0
6,0
40,0 45,0 50,0 55,0 60,0 65,0 70,0[A ]
[V]
36 V
48 V
53 V
75 V
Output voltage vs. load current at Tref = +25°C
Output voltage vs. load current at IO > max IO , Tref = +25°C
E
PKM 4000C PINB Series
DC/DC converters, Input 36-75 V, Output 55 A/204 W
EN/LZT 146 307 R4A August 2008
© Ericsson Power Modules AB
Technical Specification
12
Limited Internal
PRODUCT SPECIFICATION 4 (5)
Prepared (also subject responsible if other) No.
MICOSPE 2/1301-BMR 637 01/3 Uen
Approved Checked Date Rev Reference
MPM/BM/Y (Maria Rosendahl) (MICJAKE) 2006-09-12 F
Place yo
r
graph here
Place your
graph here
Place your
graph here
5.0 V Typical Characteristics
PKM 4211C PINB
Start-up
Shut-down
Start-up enabled by connecting VI at:
Tref = +25°C, IO = 40 A resistive load,
VI = 53 V.
Top trace: output voltage (2 V/div.).
Bottom trace: input voltage (20 V/div.).
Time scale: 5 ms/div..
Shut-down enabled by disconnecting VI at:
Tref = +25°C, IO = 4 A resistive load,
Output voltage: 2 V/div
Time scale: 2 ms/div.
Output Ripple & Noise
Output Load Transient Response
Output voltage ripple (20mV/div.) at:
Tref = +25°C, IO = 40 A resistive load,
VI = {53 V}. Time scale: 2 µs/div.
See the filter in the Output ripple and noise
section (EMC Specification).
Output voltage response to load current step-
change (10-30-10 A) at:
Tref =+25°C, VI = 53 V.
Top trace: output voltage (500mV/div.).
Bottom trace: load current (10 A/div.).
Time scale: {0.1 ms/div.}.
Output Voltage Adjust (see operating information)
Passive trim
The resistor value for an adjusted output voltage is calculated by using
the following equations:
Output Voltage Adjust Upwards, Increase:
Radj= 5.11((5(100+∆%))/1.225∆%-(100+2∆%)/∆%) kOhm
Eg Increase 4% =>V
out
=5.2 Vdc
5.11(5(100+4)/1.225x4-(100+2x4)/4 = 404 kOhm0
Output Voltage Adjust Downwards, Decrease:
Radj= 5.11(100/∆%-2) kOhm
Eg Decrease 2% =>V
out
= 4.90 Vdc
5.11(100/2-2)= 245 kOhm
The PKM4000C series DC/DC converters can be
offered with a baseplate. Baseplate helps to cool
hotspots more efficient during heavy load. The
baseplate have approximately 5°C improved
derating compared to datasheet showing non
baseplated PKM4000C. The baseplate is intended
to be mounted on a cold wall to transfer heat
away from the converter. By mounting PKM4000C
in this way thermal derating can be improved by
more than 10°C .
E
PKM 4000C PINB Series
DC/DC converters, Input 36-75 V, Output 55 A/204 W
EN/LZT 146 307 R4A August 2008
© Ericsson Power Modules AB
Technical Specification
13
Limited Internal
PRODUCT SPECIFICATION 2 (5)
Prepared (also subject responsible if other) No.
MICOSPE 2/1301-BMR 637 01/57 Uen
Approved Checked Date Rev Reference
MPM/BY/B (Maria Rosendahl) (MICJAKE) 2006-06-20 D
12 V Electrical Specification PKM 4213C PINBSP
T
ref
= -40 to +90ºC, V
I
= 38 to 75 V, unless otherwise specified under Conditions.
Typical values given at: T
ref
= +25°C, V
I
= 53 V, max I
O
, unless otherwise specified under Conditions.
Characteristics
Conditions
min
typ
max
Unit
V
I
Input voltage range 38 75 V
V
Ioff
Turn-off input voltage Decreasing input voltage 32 V
V
Ion
Turn-on input voltage Increasing input voltage 34 V
C
I
Internal input capacitance 5.7
µ
F
P
O
Output power Output voltage initial setting 0 204 W
SVR Supply voltage rejection (ac) f = 100 Hz sinewave, 1 Vp-p 61 dB
50 % of max I
O
94.2
max I
O
92 93.4
50 % of max I
O
, V
I
= 48 V 94.4
η Efficiency
max I
O
, V
I
= 48 V 93.3
%
P
d
Power Dissipation max I
O
17.7 W
P
li
Input idling power I
O
= 0, V
I
= 53 V 2.8 W
P
RC
Input standby power V
I
= 53 V (turned off with RC) 100 mW
f
s
Switching frequency 0 -100% of max I
O
180 200 220 kHz
Output voltage initial setting and
accuracy 11.8 12.0 12.2 V
V
Oi
Output adjust range
T
ref
= +25°C, V
I
= 53 V, I
O
= max I
O
Vadj, see Note 1 10.8 13.2 V
Output voltage tolerance band 10-100% of max I
O
11.7 12.3 V
Idling voltage I
O
= 0 11.8 12.2 V
Line regulation max I
O
50 mV
V
O
Load regulation V
I
= 53 V, 1-100% of max I
O
20 mV
V
tr
Load transient
voltage deviation ±800 mV
t
tr
Load transient recovery time
V
I
= 53 V, Load step 25-75-25 % of
max I
O
, di/dt = 1 A/
µ
s,
see Note 2 100 us
t
r
Ramp-up time
(from 10−90 % of V
Oi
)
5 9 20 ms
t
s
Start-up time
(from V
I
connection to 90% of V
Oi
)
10-100% of max I
O
7 10 50 ms
I
O
Output current 0 17 A
I
lim
Current limit threshold Vo = 10.8 V, T
ref
< max T
ref
21 A
I
sc
Short circuit current T
ref
= 25ºC, V
O
= < V
Onom
* 0.1 26 A
V
Oac
Output ripple & noise See ripple & noise section,
max I
O
, V
O
. 100 200 mVp-p
OVP Over Voltage Protection T
ref
= +25°C, V
I
= 53 V, I
O
= 0-100%
of max I
O
14.3 V
Note 1: When using Vadj function, max output power (
P
O
) must not be exceeded
Note 2: Output filter according to Ripple & Noise section
E
PKM 4000C PINB Series
DC/DC converters, Input 36-75 V, Output 55 A/204 W
EN/LZT 146 307 R4A August 2008
© Ericsson Power Modules AB
Technical Specification
14
Limited Internal
PRODUCT SPECIFICATION 3 (5)
Prepared (also subject responsible if other) No.
MICOSPE 2/1301-BMR 637 01/57 Uen
Approved Checked Date Rev Reference
MPM/BY/B (Maria Rosendahl) (MICJAKE) 2006-06-20 D
12 V Typical Characteristics
PKM 4213C PINBSP
Efficiency Power Dissipation
85
87
89
91
93
95
0,0 3,0 6,0 9,0 12,0 15,0 18,0 [A]
[%]
38 V
48 V
53 V
75 V
0
4
8
12
16
0,0 3,0 6,0 9,0 12,0 15,0 18,0 [A]
[W]
38 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at T
ref
= +25°C Dissipated power vs. load current and input voltage at
T
ref
= +25°C
Output Current Derating Thermal Resistance
0,0
3,0
6,0
9,0
12,0
15,0
18,0
20 30 40 50 60 70 80 90 100 [°C]
[A]
3.0 m/s
2.5 m/s
2.0 m/s
1.5 m/s
1.0 m/s
Nat. Conv.
2
4
6
8
0,0 0,5 1,0 1,5 2,0 2,5 3,0 [m/s]
[°C/W]
Available load current vs. ambient air temperature and airflow at
V
I
= 53 V. See Thermal Consideration section.
Thermal resistance vs. airspeed measured at the converter. Tested in
wind tunnel with airflow and test conditions as per
the Thermal consideration section.
Output Characteristics Current Limit Characteristics
11,80
11,90
12,00
12,10
12,20
0,0 3,0 6,0 9,0 12,0 15,0 18,0 [A]
[V]
38 V
48 V
53 V
75 V
0,0
3,0
6,0
9,0
12,0
15,0
17,0 19,0 21,0 23,0 25,0 27,0 [A]
[V]
38 V
48 V
53 V
75 V
O
utput voltage vs. load current at T
ref
= +25°C
O
utput voltage vs. load current at I
O
> max I
O
, T
ref
= +25°C
E
PKM 4000C PINB Series
DC/DC converters, Input 36-75 V, Output 55 A/204 W
EN/LZT 146 307 R4A August 2008
© Ericsson Power Modules AB
Technical Specification
15
Limited Internal
PRODUCT SPECIFICATION 4 (5)
Prepared (also subject responsible if other) No.
MICOSPE 2/1301-BMR 637 01/57 Uen
Approved Checked Date Rev Reference
MPM/BY/B (Maria Rosendahl) (MICJAKE) 2006-06-20 D
Place your
graph here
Place your graph her
e
Place your
graph here
12 V Typical Characteristics
PKM 4213C PINBSP
Start-up Shut-down
Start-up enabled by connecting V
I
at:
T
ref
= +25°C, I
O
= 17 A resistive load,
V
I
= 53 V.
Top trace: output voltage (5 V/div.).
Bottom trace: input voltage (20 V/div.).
Time scale: 5 ms/div..
Shut-down enabled by disconnecting V
I
at:
T
ref
= +25°C, I
O
= 0 A,
Output voltage (5 V/div.).
Time scale: 50us/div..
Output Ripple & Noise Output Load Transient Response
Output voltage ripple (50mV/div.) at:
T
ref
= +25°C, I
O
= 17 A resistive load,
V
I
= {53 V}. Time scale: 2 µs/div.
See the filter in the Output ripple and noise
section (EMC Specification).
Output voltage response to load current step-
change (4.25-12.75-4.25 A) at:
T
ref
=+25°C, V
I
= 53 V.
Top trace: output voltage (500mV/div.).
Bottom trace: load current (4.25 A/div.).
Time scale: {0.1 ms/div.}.
Output Voltage Adjust (see operating information) Baseplate
Passive trim
The resistor value for an adjusted output voltage is calculated by using
the following equations:
Output Voltage Adjust Upwards, Increase:
R
adj
= 5.11((12(100+∆%))/1.225∆%-(100+2∆%)/∆%) kOhm
Eg Increase 4% =>V
out
=12.48 Vdc
5.11(12(100+4)/1.225x4-(100+2x4)/4 = 404 kOhm
Output Voltage Adjust Downwards, Decrease:
R
adj
= 5.11(100/∆%-2) kOhm
Eg Decrease 2% =>V
out
= 11.76 Vdc
5.11(100/2-2)= 245 kOhm
The PKM4000C series DC/DC converters can be
offered with a baseplate. Baseplate helps to cool
hotspots more efficient during heavy load. The
baseplate have approximately 5°C improved derating
compared to datasheet showing non baseplated
PKM4000C. The baseplate is intended to be
mounted on a cold wall to transfer heat away from
the converter. By mounting PKM4000C in this way
thermal derating can be improved by more than
10°C.
E
PKM 4000C PINB Series
DC/DC converters, Input 36-75 V, Output 55 A/204 W
EN/LZT 146 307 R4A August 2008
© Ericsson Power Modules AB
Technical Specification
16
SEC/D (Julia You) EYINGJI 2007-12-10 C
EMC Specification
Conducted EMI measured according to EN55022, CISPR 22
and FCC part 15J (see test set-up).
The fundamental switching frequency is 200 kHz for
PKM 4211C PINB @ VI = 53 V, max IO.
Conducted EMI Input terminal value (typ)
EMI without filter
External filter (class B)
Required external input filter in order to meet class B in
EN 55022, CISPR 22 and FCC part 15J.
Filter components:
C1 = 0.68 μF
C2,3 = 1.0 μF
C4,5 = 2.2 nF
C6,7 = 100 uF
L1,2 = 0.768 mH
EMI with filter
Test set-up
Layout recommendation
The radiated EMI performance of the DC/DC converter will
depend on the PCB layout and ground layer design. It is also
important to consider the stand-off of the DC/DC converter.
If a
g
round la
y
er is used, it should be connected to the output
of the DC/DC converter and the equipment ground or
chassis.
A ground layer will increase the stray capacitance in the PCB
and improve the high frequency EMC performance.
Output ripple and noise
Output ripple and noise measured according to figure below.
See Design Note 022 for detailed information.
Output ripple and noise test setup
E
PKM 4000C PINB Series
DC/DC converters, Input 36-75 V, Output 55 A/204 W
EN/LZT 146 307 R4A August 2008
© Ericsson Power Modules AB
Technical Specification
17
ESKEVIN 3/1301-BMR 637 01 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) EYINGJI 2007-12-10 C
Operating information
Input Voltage
The input voltage range 36 to 75Vdc meets the requirements
of the European Telecom Standard ETS 300 132-2 for normal
input voltage range in —48 and —60 Vdc systems, -40.5 to -
57.0 V and —50.0 to -72 V respectively. At input voltages
exceeding 75 V, the power loss will be higher than at normal
input voltage and Tref must be limited to absolute max
+110°C. The absolute maximum continuous input voltage is
80Vdc.
Turn-off Input Voltage
The PKM 4000CSeries 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 1 V.
Remote Control (RC)
The products are fitted with a
remote control function referenced
to the primary negative input
connection (- In), with negative and
positive logic options available. The
RC function allows the converter to
be turned on/off by an external
device like a semiconductor or
mechanical switch. The RC pin has
an internal pull up resistor to + In.
The maximum required sink current is 1 mA. When the RC pin
is left open, the voltage generated on the RC pin is 3.5 — 6.0
V.
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 when the input voltage is
applied with the RC pin open. Turn off is achieved by
connecting the RC pin to the - In. To ensure safe turn off the
voltage difference between RC pin and the - In pin shall be
less than 1V. The converter will restart automatically when
this connection is opened.
See Design Note 021 for detailed information.
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 low characteristic impedance, both
at the input and output, as the converters have a low energy
storage capability. The PKM 4000CSeries DC/DC converters
have been desi
g
ned to be completel
y
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 100μF 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.
External Decoupling Capacitors
When powering loads with significant dynamic current
requirements, the voltage regulation at the point of load can
be improved b
y
addition of decouplin
g
capacitors at the load.
The most effective technique is to locate low ESR ceramic
and electrolytic capacitors as close to the load as possible,
using several parallel capacitors to lower the effective ESR.
The ceramic capacitors will handle high-frequency dynamic
load changes while the electrolytic capacitors are used to
handle low frequency dynamic load changes. Ceramic
capacitors will also reduce any high frequency noise at the
load.
It is equally important to use low resistance and low
inductance PCB layouts and cabling.
External decoupling capacitors will become part of the
control loop of the DC/DC converter and may affect the
stability margins. As a “rule of thumb”, 100 μF/A of output
current can be added without any additional analysis. The
ESR of the capacitors is a very important parameter. Power
Modules guarantee stable operation with a verified ESR value
of >10 mΩ across the output connections.
For further information please contact your local Ericsson
Power Modules representative.
Output Voltage Adjust (Vadj)
All PKM 4000CSeries 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 maximum output adjust range.
A
lso 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.
E
PKM 4000C PINB Series
DC/DC converters, Input 36-75 V, Output 55 A/204 W
EN/LZT 146 307 R4A August 2008
© Ericsson Power Modules AB
Technical Specification
18
ESKEVIN 3/1301-BMR 637 01 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) EYINGJI 2007-12-10 C
Operating information continued
Parallel Operation
The PKM 4000CSeries DC/DC converters can be paralleled
for redundancy if external o-ring diodes are used in series
with the outputs. It is not recommended to parallel the PKM
4000C Series DC/DC converters for increased power without
using external current sharing circuits.
See Design Note 006 for detailed information.
Remote Sense
All PKM 4000CSeries 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
volta
g
e and the volta
g
e at the output pins. The output volta
g
e
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.
Over Temperature Protection (OTP)
The PKM 4000CSeries DC/DC converters are protected from
thermal overload by an internal over temperature shutdown
circuit. When the Pcb temperature (TC reference point)
exceeds the temperature trig point (~120 °C) the OTP circuit
will cut down output power. The converter will stop until safe
operating temperature is restored. Hysteresis between OTP
trig point and restart is approx 10°C. Time between OTP and
restart is dependant on cooling of DC/DC converter.
Over Voltage Protection (OVP)
The PKM 4000CSeries DC/DC converters have output
overvoltage protection. In the event of an output overvoltage
condition, the converter will shut down immediately. The
converter make continous attempts to start up (non-latching
mode) and resume normal operation automatically.
Over Current Protection (OCP)
The PKM 4000CSeries 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.
Thermal Consideration
General
The PKM 4000Cseries 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 accordin
g
to the information
g
iven under the
output section. The test is done in a wind tunnel with a cross
section of 305 x 305 mm, the DC/DC converter vertically
mounted on a 16 layer Pcb with a size of 254 x 254 mm, each
layer with 35 μm (1 oz) copper. Proper cooling can be verified
by measuring the temperature of selected devices. Peak
temperature can occur at positions P1 - P4. The temperature
at these positions should not exceed the recommended max
values.
Note that the max value is the absolute maximum rating
(non destruction) and that the electrical Output data is
guaranteed up to Tref +90°C.
See Design Note 019 for further information.
Position Device Designation max value
P1 Pcb Tref 110º C
P2 Mosfet Tsurface 120º C
P3 Mosfet Tsurface 120º C
P4 Transformer Tsurface 130º C
E
PKM 4000C PINB Series
DC/DC converters, Input 36-75 V, Output 55 A/204 W
EN/LZT 146 307 R4A August 2008
© Ericsson Power Modules AB
Technical Specification
19
ESKEVIN 3/1301-BMR 637 01 Uen
Approved Checked Date Rev Reference
SEC/D (Julia You) EYINGJI 2007-12-10 C
Thermal Consideration continued
Definition of reference temperature (Tref)
The reference temperature is used to monitor the temperature
limits of the product. Temperatures above maximum Tref are
not allowed and may cause degradation or permanent
damage to the product. Tref is also used to define the
temperature range for normal operating conditions.
Tref is defined by the design and used to guarantee safety
margins, proper operation and high reliability of the module.
Ambient Temperature Calculation
By using the thermal resistance the maximum allowed
ambient temperature can be calculated.
1. The power loss is calculated by using the formula
((1/η) - 1) × output power = power losses (Pd).
η = efficiency of converter. E.g 90 % = 0.90
2. Find the thermal resistance (Rth) in the Thermal Resistance
graph found in the Output section for each model.
Calculate the temperature increase (ΔT).
ΔT = Rth x Pd
3. Max allowed ambient temperature is:
Max Tref - ΔT.
E.g PKM 4213C PINBSP at 2m/s:
1. (( ) - 1) × 204 W = 14.6 W
2. 14.6 W × 5.7°C/W = 83°C
3. 110 °C — 83°C = max ambient temperature is 27°C
The real temperature will be dependent on several factors, like
Pcb size and type, direction of airflow, air turbulence etc.
It is recommended to verify the temperature by testing.
Connections
Top View
Pin Designation Function
1 +In Positive input
2 RC Remote control
3 - In Negative input
4,10 - Out Negative output
5 - Sen Negative remote sense
6 Vadj Output voltage adjust
7 + Sen Positive remote sense
8,9 + Out Positive output
1
0.933
E
PKM 4000C PINB Series
DC/DC converters, Input 36-75 V, Output 55 A/204 W
EN/LZT 146 307 R4A August 2008
© Ericsson Power Modules AB
Technical Specification
20
Ericsson Internal
PRODUCT SPECIFICATION 1 (7)
Prepared (also subject responsible if other) No.
MICUPEZ 4/1301-BMR 637 01 Uen
Approved Checked Date Rev Reference
2006-10-30 C
Mechanical Drawing for Single Pin out
E
PKM 4000C PINB Series
DC/DC converters, Input 36-75 V, Output 55 A/204 W
EN/LZT 146 307 R4A August 2008
© Ericsson Power Modules AB
Technical Specification
21
Ericsson Internal
PRODUCT SPECIFICATION 2 (7)
Prepared (also subject responsible if other) No.
MICUPEZ 4/1301-BMR 637 01 Uen
Approved Checked Date Rev Reference
2006-10-30 C
Mechanical Drawing for Double Pin out
E
PKM 4000C PINB Series
DC/DC converters, Input 36-75 V, Output 55 A/204 W
EN/LZT 146 307 R4A August 2008
© Ericsson Power Modules AB
Technical Specification
22
Ericsson Internal
PRODUCT SPECIFICATION 3 (7)
Prepared (also subject responsible if other) No.
MICUPEZ 4/1301-BMR 637 01 Uen
Approved Checked Date Rev Reference
2006-10-30 C
Mechanical Drawing for Base plate o ption with Single Pin out
E
PKM 4000C PINB Series
DC/DC converters, Input 36-75 V, Output 55 A/204 W
EN/LZT 146 307 R4A August 2008
© Ericsson Power Modules AB
Technical Specification
23
Ericsson Internal
PRODUCT SPECIFICATION 4 (7)
Prepared (also subject responsible if other) No.
MICUPEZ 4/1301-BMR 637 01 Uen
Approved Checked Date Rev Reference
2006-10-30 C
Mechanical Drawing for Base plate o ption with Double Pin out
E
PKM 4000C PINB Series
DC/DC converters, Input 36-75 V, Output 55 A/204 W
EN/LZT 146 307 R4A August 2008
© Ericsson Power Modules AB
Technical Specification
24
Ericsson Internal
PRODUCT SPECIFICATION 5 (7)
Prepared (also subject responsible if other) No.
MICUPEZ 4/1301-BMR 637 01 Uen
Approved Checked Date Rev Reference
2006-10-30 C
Soldering Information — Through hole mounting
The product is intended for through hole mounting in a PCB.
When wave soldering is used, the temperature on the pins is
specified to maximum 260 °C for maximum 10 seconds.
Maximum preheat rate of 4 °C/s and temperature of max
150 °C is suggested. When hands soldering care should be
taken to avoid direct contact between the hot soldering iron
tip and the pins for more than a few seconds in order to
prevent overheating.
A no-clean (NC) 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.
Delivery package information
The products are delivered in antistatic trays.
Tray specifications
Material Polyethylene foam, dissipative
Surface resistance 105 < Ω/square < 1012
Bake ability The trays are not bakeable
Tray capacity 20 products/tray
Tray height 25.4 mm [1.0 inch]
Box capacity 20 products (1 full tray/box)
Tray weight 100 g empty, 1400 g full maximum
E
PKM 4000C PINB Series
DC/DC converters, Input 36-75 V, Output 55 A/204 W
EN/LZT 146 307 R4A August 2008
© Ericsson Power Modules AB
Technical Specification
25
Ericsson Internal
PRODUCT SPECIFICATION 6 (7)
Prepared (also subject responsible if other) No.
MICUPEZ 4/1301-BMR 637 01 Uen
Approved Checked Date Rev Reference
2006-10-30 C
Product Qualification Specification
Characteristics
External visual inspection IPC-A-610
Change of temperature
(Temperature cycling)
IEC 60068-2-14 Na Temperature range
Number of cycles
Dwell/transfer time
-40 to +100 °C
300
30 min/0-1 min
Cold (in operation) IEC 60068-2-1 Bc Temperature TA
Duration
-40°C
2 h
Damp heat IEC 60068-2-3 Ca Temperature
Humidity
Duration
+85 °C
85 % RH
1000 hours
Dry heat IEC 60068-2-2 Ba Temperature
Duration
+125 °C
1000 h
Heat (in operation) IEC 60068-2-1 Ad Temperature TA
Duration
+90 °C
72 h
Immersion in cleaning solvents IEC 60068-2-45 XA
Method 2
Water
Glycol ether
Isopropanol
+55 ±5 °C
+35 ±5 °C
+35 ±5 °C
Mechanical shock IEC 60068-2-27 Ea Peak acceleration
Duration
Pulse shape
Directions
Number of pulses
100 g
3 ms
Half sine
6
18 (3 + 3 in each perpendicular direction)
Resistance to soldering heat IEC 60068-2-20 Tb
Method 1A
Solder temperature
Duration
260 °C
10 s
Robustness of terminations IEC 60068-2-21 Ua1
Tensile force 20 N for 10 s /signal pin
40 N for 10 s /power pin
Solderability IEC 60068-2-54
Preconditioning
Temperature, SnPb Eutectic
ageing 240 h 85°C /85%RH
235°C
Vibration, broad band random IEC 60068-2-34 Eb Frequency
Spectral density
Duration
10 to 500 Hz
0.025 g2/Hz
10 min in each 3 perpendicular directions
E
PKM 4000C PINB Series
DC/DC converters, Input 36-75 V, Output 55 A/204 W
EN/LZT 146 307 R4A August 2008
© Ericsson Power Modules AB
Technical Specification
26