PKM4110CPINBSP [ERICSSON]

DC-DC Regulated Power Supply Module, 1 Output, 165W, Hybrid, ROHS COMPLIANT, QUARTER BRICK PACKAGE-10;
PKM4110CPINBSP
型号: PKM4110CPINBSP
厂家: ERICSSON    ERICSSON
描述:

DC-DC Regulated Power Supply Module, 1 Output, 165W, Hybrid, ROHS COMPLIANT, QUARTER BRICK PACKAGE-10

文件: 总26页 (文件大小:1073K)
中文:  中文翻译
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E
Technical Specification  
EN/LZT 146 307R4AAugust 2008  
PKM 4000C PINB Series  
© Ericsson Power Modules AB  
DC/DC converters, Input 36-75 V, Output 55 A/204 W  
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.  
Contents  
General Information  
Safety Specification  
Absolute Maximum Ratings  
............................................................. 2  
............................................................. 3  
............................................................. 4  
Product Program  
Ordering No.  
2.5V, 55A / 137.5W Electrical Specification PKM4119C PINB.................................. 5  
3.3V, 50A / 165W Electrical Specification  
5.0V, 40A / 200W Electrical Specification  
12.0V, 17A / 204W Electrical Specification  
PKM4110C PINB.................................. 8  
PKM4211C PINB................................ 11  
PKM4213C PINBSP ........................... 14  
EMC Specification  
........................................................... 17  
........................................................... 18  
........................................................... 20  
........................................................... 20  
........................................................... 21  
........................................................... 25  
........................................................... 25  
........................................................... 26  
Operating Information  
Thermal Consideration  
Connections  
Mechanical Information  
Soldering Information  
Delivery Information  
Product Qualification Specification  
E
2
Technical Specification  
EN/LZT 146 307R4AAugust 2008  
PKM 4000C PINB Series  
© Ericsson Power Modules AB  
DC/DC converters, Input 36-75 V, Output 55 A/204 W  
-
-
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)  
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)  
PKM 4110C PI  
Quality Statement  
SP  
P
M
LA  
LB  
PKM 4211C PINBSP  
PKM 4110C PIPNB  
PKM 4110C PINBM  
PKM 4110C PINBLA  
PKM 4110C PINBLB  
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.  
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.  
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.  
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.  
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).  
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)  
E
3
Technical Specification  
EN/LZT 146 307R4AAugust 2008  
PKM 4000C PINB Series  
© Ericsson Power Modules AB  
DC/DC converters, Input 36-75 V, Output 55 A/204 W  
Safety Specification  
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.  
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.  
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:  
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  
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.  
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.  
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.  
Component power supplies for general use should comply  
with the requirements in IEC60950, EN60950 and  
UL60950 “Safety of information technology equipment”.  
48 and 60 V DC systems  
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.  
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.  
Ericsson Power Modules DC/DC converters and DC/DC  
regulators are UL60950 recognized and certified in  
accordance with EN60950.  
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.  
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.  
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
4
Technical Specification  
EN/LZT 146 307 R4A August 2008  
PKM 4000C PINB Series  
DC/DC converters, Input 36-75 V, Output 55 A/204 W  
© Ericsson Power Modules AB  
Absolute Maximum Ratings  
Characteristics  
min  
-40  
typ  
max  
+110  
+125  
+80  
Unit  
°C  
°C  
V
Tref  
TS  
Operating Temperature (see Thermal Consideration section)  
Storage temperature  
-55  
VI  
Input voltage  
-0.5  
Viso  
Viso  
Vtr  
Isolation voltage baseplate (input to output, input & output to baseplate test voltage)  
Isolation voltage no baseplate option (input to output)  
Input voltage transient (Tp 100 ms)  
2250  
1500  
100  
Vdc  
Vdc  
V
Positive logic option  
Negative logic  
-0.5  
-0.5  
-0.5  
+15  
V
Remote Control pin voltage  
(see Operating Information section)  
VRC  
Vadj  
+15  
V
Adjust pin voltage (see Operating Information section)  
+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  
Isolated  
Feedback  
+ Out  
Primary  
Secondary  
+ In  
+ Out  
+ Sense  
Vadj  
Voltage  
Monitoring  
RC  
- In  
Control  
Control  
- Sense  
- Out  
- Out  
E
5
Technical Specification  
EN/LZT 146 307 R4A August 2008  
PKM 4000C PINB Series  
DC/DC converters, Input 36-75 V, Output 55 A/204 W  
© Ericsson Power Modules AB  
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  
36  
typ  
max  
75  
Unit  
V
VI  
Input voltage range  
VIoff  
VIon  
CI  
Turn-off input voltage  
Turn-on input voltage  
Internal input capacitance  
Output power  
Decreasing input voltage  
Increasing input voltage  
32  
34  
V
V
5.7  
μF  
W
PO  
Output voltage initial setting  
f = 100 Hz sinewave, 1 Vp-p  
50 % of max IO  
0
137.5  
SVR  
Supply voltage rejection (ac)  
55  
dB  
91.5  
89.2  
91.7  
88.9  
max IO  
88  
η
Efficiency  
%
50 % of max IO , VI = 48 V  
max IO , VI = 48 V  
Pd  
Pli  
Power Dissipation  
Input idling power  
Input standby power  
Switching frequency  
max IO  
18.8  
W
W
IO= 0, VI = 53 V  
2.6  
100  
200  
PRC  
fs  
VI = 53 V (turned off with RC)  
0 -100% of max IO  
mW  
kHz  
180  
220  
Output voltage initial setting and  
accuracy  
2.45  
2.50  
2.55  
V
Tref = +25°C, VI = 53 V, IO = max IO  
Vadj, see Note 1  
VOi  
Output adjust range  
Output voltage tolerance band  
Idling voltage  
2.21  
2.40  
2.40  
2.81  
2.60  
2.60  
15  
V
V
10-100% of max IO  
IO = 0  
V
VO  
Line regulation  
max IO  
mV  
mV  
Load regulation  
VI = 53 V, 1-100% of max IO  
15  
Load transient  
voltage deviation  
VI = 53 V, Load step 25-75-25 % of  
max IO, di/dt = 1 A/μs,  
see Note 2  
Vtr  
ttr  
tr  
±250  
100  
10  
mV  
us  
Load transient recovery time  
Ramp-up time  
(from 1090 % of VOi)  
5
15  
ms  
10-100% of max IO  
Start-up time  
(from VI connection to 90% of VOi)  
ts  
10  
0
15  
50  
55  
ms  
IO  
Output current  
A
A
A
Ilim  
Isc  
Current limit threshold  
Short circuit current  
Vo = 2.25 V, Tref < max Tref  
Tref = 25ºC,  
63  
74  
See ripple & noise section,  
max IO, VO.  
VOac  
Output ripple & noise  
80  
130  
mVp-p  
V
Tref = +25°C, VI = 53 V, IO = 0-100%  
OVP  
Over Voltage Protection  
3.4  
of max IO  
Note 1: When using Vadj function, max output power (PO) must not be exceeded  
Note 2: Output filter according to Ripple & Noise section  
E
6
Technical Specification  
EN/LZT 146 307 R4A August 2008  
PKM 4000C PINB Series  
DC/DC converters, Input 36-75 V, Output 55 A/204 W  
© Ericsson Power Modules AB  
2.5 V Typical Characteristics  
PKM 4119C PINB  
Efficiency  
Power Dissipation  
[%]  
93  
[W]  
20  
91  
89  
87  
85  
83  
16  
12  
8
36 V  
48 V  
53 V  
75 V  
36 V  
48 V  
53 V  
75 V  
4
0
0
5
10 15 20 25 30 35 40 45 50 55 [A]  
0
5
10 15 20 25 30 35 40 45 50 55 [A]  
Dissipated power vs. load current and input voltage at  
ref = +25°C  
Efficiency vs. load current and input voltage at Tref = +25°C  
T
Output Current Derating  
Thermal Resistance  
[°C/W]  
6
[A]  
60,0  
3.0 m/s  
50,0  
40,0  
30,0  
20,0  
10,0  
2.5 m/s  
2.0 m/s  
1.5 m/s  
1.0 m/s  
Nat. Conv.  
4
2
0
0,0  
20 30 40 50 60 70 80 90 100 [°C]  
0,0  
0,5  
1,0  
1,5  
2,0  
2,5  
3,0[m/s]  
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.  
[V]  
[V]  
2,60  
2,55  
2,50  
2,45  
2,40  
3,0  
2,5  
2,0  
1,5  
1,0  
0,5  
0,0  
36 V  
48 V  
53 V  
75 V  
36 V  
48 V  
53 V  
75 V  
0
5
10 15 20 25 30 35 40 45 50 55 [A]  
55,0  
60,0  
65,0  
70,0  
75,0  
80,0 [A]  
Output voltage vs. load current at Tref = +25°C  
Output voltage vs. load current at IO > max IO , Tref = +25°C  
E
7
Technical Specification  
EN/LZT 146 307 R4A August 2008  
PKM 4000C PINB Series  
DC/DC converters, Input 36-75 V, Output 55 A/204 W  
© Ericsson Power Modules AB  
2.5 V Typical Characteristics  
PKM 4119C PINB  
Start-up  
Shut-down  
Start-up enabled by connecting VI at:  
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:  
ref = +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..  
Tref = +25°C, IO = 55 A resistive load,  
T
VI = 53 V.  
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- Top trace: output voltage (100mV/div.).  
change (13.8-41.4-13.8 A) at:  
Bottom trace: load current (13.8 A/div.).  
Time scale: {0.1 ms/div.}.  
Tref =+25°C, VI = 53 V.  
Output Voltage Adjust (see operating information)  
Passive trim  
The resistor value for an adjusted output voltage is calculated by using  
the following equations:  
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 .  
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  
E
8
Technical Specification  
EN/LZT 146 307 R4A August 2008  
PKM 4000C PINB Series  
DC/DC converters, Input 36-75 V, Output 55 A/204 W  
© Ericsson Power Modules AB  
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  
36  
typ  
max  
75  
Unit  
V
VI  
Input voltage range  
VIoff  
VIon  
CI  
Turn-off input voltage  
Turn-on input voltage  
Internal input capacitance  
Output power  
Decreasing input voltage  
Increasing input voltage  
32  
34  
V
V
5.7  
μF  
W
PO  
Output voltage initial setting  
f = 100 Hz sinewave, 1 Vp-p  
50 % of max IO  
0
165  
SVR  
Supply voltage rejection (ac)  
50  
dB  
92.2  
90.3  
92.3  
90.1  
max IO  
89  
η
Efficiency  
%
50 % of max IO , VI = 48 V  
max IO , VI = 48 V  
Pd  
Pli  
Power Dissipation  
Input idling power  
Input standby power  
Switching frequency  
max IO  
20.4  
W
W
IO= 0, VI = 53 V  
3.4  
100  
155  
PRC  
fs  
VI = 53 V (turned off with RC)  
0 -100% of max IO  
mW  
kHz  
145  
165  
Output voltage initial setting and  
accuracy  
3.24  
3.36  
V
Tref = +25°C, VI = 53 V, IO = max IO  
Vadj, see Note 1  
VOi  
Output adjust range  
Output voltage tolerance band  
Idling voltage  
2.97  
3.23  
3.23  
3.63  
3.37  
3.37  
15  
V
V
10-100% of max IO  
IO = 0  
V
VO  
Line regulation  
max IO  
mV  
mV  
Load regulation  
VI = 53 V, 1-100% of max IO  
15  
Load transient  
voltage deviation  
VI = 53 V, Load step 25-75-25 % of  
max IO, di/dt = 1 A/μs,  
see Note 2  
Vtr  
ttr  
tr  
±500  
100  
10  
mV  
us  
Load transient recovery time  
Ramp-up time  
(from 1090 % of VOi)  
7
30  
ms  
10-100% of max IO  
Start-up time  
(from VI connection to 90% of VOi)  
ts  
10  
0
15  
50  
50  
ms  
IO  
Output current  
A
A
A
Ilim  
Isc  
Current limit threshold  
Short circuit current  
Vo = 2.97 V, Tref < max Tref  
61  
65  
Tref = 25ºC, VO = < VOnom * 0.1  
See ripple & noise section,  
max IO, VO.  
VOac  
Output ripple & noise  
60  
125  
mVp-p  
V
Tref = +25°C, VI = 53 V, IO = 0-100%  
OVP  
Over Voltage Protection  
4.2  
of max IO  
Note 1: When using Vadj function, max output power (PO) must not be exceeded  
Note 2: Output filter according to Ripple & Noise section  
E
9
Technical Specification  
EN/LZT 146 307 R4A August 2008  
PKM 4000C PINB Series  
DC/DC converters, Input 36-75 V, Output 55 A/204 W  
© Ericsson Power Modules AB  
3.3 V Typical Characteristics  
PKM 4110C PINB  
Efficiency  
Power Dissipation  
[%]  
93  
[W]  
20  
91  
89  
87  
85  
83  
16  
12  
8
36 V  
48 V  
53 V  
75 V  
36 V  
48 V  
53 V  
75 V  
4
0
0
5
10 15 20 25 30 35 40 45 50 [A]  
0
5
10 15 20 25 30 35 40 45 50 [A]  
Dissipated power vs. load current and input voltage at  
ref = +25°C  
Efficiency vs. load current and input voltage at Tref = +25°C  
T
Output Current Derating  
Thermal Resistance  
[A]  
50,0  
[°C/W]  
6
3.0 m/s  
2.5 m/s  
2.0 m/s  
1.5 m/s  
1.0 m/s  
Nat. Conv.  
40,0  
30,0  
20,0  
10,0  
4
2
0
0,0  
0,0  
0,5  
1,0  
1,5  
2,0  
2,5  
3,0[m/s]  
20 30 40 50 60 70 80 90 100 [°C]  
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.  
[V]  
[V]  
3,40  
4,0  
3,0  
2,0  
1,0  
0,0  
3,35  
3,30  
3,25  
3,20  
36 V  
48 V  
53 V  
75 V  
36 V  
48 V  
53 V  
75 V  
50,0  
55,0  
60,0  
65,0  
70,0  
75,0 [A]  
0
5
10 15 20 25 30 35 40 45 50 [A]  
Output voltage vs. load current at Tref = +25°C  
Output voltage vs. load current at IO > max IO , Tref = +25°C  
E
10  
Technical Specification  
EN/LZT 146 307 R4A August 2008  
PKM 4000C PINB Series  
DC/DC converters, Input 36-75 V, Output 55 A/204 W  
© Ericsson Power Modules AB  
3.3 V Typical Characteristics  
PKM 4110C PINB  
Start-up  
Shut-down  
Start-up enabled by connecting VI at:  
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:  
ref = +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..  
Tref = +25°C, IO = 50 A resistive load,  
T
VI = 53 V.  
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- Top trace: output voltage (200mV/div.).  
change (12.5-47.5-12.5 A) at:  
Bottom trace: load current (12.5 A/div.).  
Time scale: {0.1 ms/div.}.  
Tref =+25°C, VI = 53 V.  
Output Voltage Adjust (see operating information)  
Passive trim  
The resistor value for an adjusted output voltage is calculated by using  
the following equations:  
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 .  
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  
E
11  
Technical Specification  
EN/LZT 146 307R4AAugust 2008  
PKM 4000C PINB Series  
© Ericsson Power Modules AB  
DC/DC converters, Input 36-75 V, Output 55 A/204 W  
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  
36  
typ  
max  
75  
Unit  
V
VI  
Input voltage range  
VIoff  
VIon  
CI  
Turn-off input voltage  
Turn-on input voltage  
Internal input capacitance  
Output power  
Decreasing input voltage  
Increasing input voltage  
32  
34  
V
V
5.7  
µF  
W
PO  
Output voltage initial setting  
f = 100 Hz sinewave, 1 Vp-p  
50 % of max IO  
0
200  
SVR  
Supply voltage rejection (ac)  
70  
dB  
92.9  
91.3  
93.0  
91.2  
max IO  
90  
η
Efficiency  
%
50 % of max IO , VI = 48 V  
max IO , VI = 48 V  
max IO  
Pd  
Pli  
Power Dissipation  
Input idling power  
Input standby power  
Switching frequency  
22.2  
W
W
IO= 0, VI = 53 V  
3.1  
100  
200  
PRC  
fs  
VI = 53 V (turned off with RC)  
0 -100% of max IO  
mW  
kHz  
180  
220  
Output voltage initial setting and  
accuracy  
4.90  
5.00  
5.10  
V
T
ref = +25°C, VI = 53 V, IO = 40.0 A  
VOi  
Vadj, see Note 1  
Output adjust range  
Output voltage tolerance band  
Idling voltage  
4.50  
4.80  
4.80  
5.50  
5.20  
5.20  
35  
V
V
10-100% of max IO  
IO = 0  
V
VO  
Line regulation  
max IO  
mV  
mV  
Load regulation  
VI = 53 V, 1-100% of max IO  
35  
Load transient  
voltage deviation  
VI = 53 V, Load step 25-75-25 % of  
max IO, di/dt = 1 A/µs,  
see Note 2  
Vtr  
ttr  
tr  
±700  
100  
13  
mV  
Us  
Load transient recovery time  
Ramp-up time  
(from 1090 % of VOi)  
7
30  
ms  
10-100% of max IO  
Start-up time  
(from VI connection to 90% of VOi)  
ts  
9
0
15  
50  
40  
ms  
IO  
Output current  
A
A
A
Ilim  
Isc  
Current limit threshold  
Short circuit current  
Vo = 4.5 V, Tref < max Tref  
54  
67  
Tref = 25ºC, VO = < VOnom * 0.1  
See ripple & noise section,  
max IO, VO.  
VOac  
Output ripple & noise  
60  
150  
mVp-p  
V
Tref = +25°C, VI = 53 V, IO = 0-100%  
OVP  
Over Voltage Protection  
6.2  
of max IO  
Note 1: When using Vadj function, max output power (PO) must not be exceeded  
Note 2: Output filter according to Ripple & Noise section  
E
12  
Technical Specification  
EN/LZT 146 307R4AAugust 2008  
PKM 4000C PINB Series  
© Ericsson Power Modules AB  
DC/DC converters, Input 36-75 V, Output 55 A/204 W  
5.0 V Typical Characteristics  
PKM 4211C PINB  
Efficiency  
Power Dissipation  
[W]  
24  
[%]  
95  
20  
16  
12  
8
93  
91  
89  
87  
85  
36 V  
48 V  
53 V  
75 V  
36 V  
48 V  
53 V  
75 V  
4
0
0,0 5,0 10,0 15,0 20,0 25,0 30,0 35,0 40,0[A]  
0,0 5,0 10,0 15,0 20,0 25,0 30,0 35,0 40,0 [A]  
Dissipated power vs. load current and input voltage at  
ref = +25°C  
Efficiency vs. load current and input voltage at Tref = +25°C  
T
Output Current Derating  
Thermal Resistance  
[°C/W]  
8
[A]  
40,0  
3.0 m/s  
30,0  
20,0  
10,0  
0,0  
2.5 m/s  
2.0 m/s  
1.5 m/s  
1.0 m/s  
Nat. Conv.  
6
4
2
20  
30  
40  
50  
60  
70  
80  
90 100 [°C]  
0,0  
0,5  
1,0  
1,5  
2,0  
2,5  
3,0[m/s]  
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  
[V]  
[V]  
6,0  
5,20  
5,0  
4,0  
3,0  
2,0  
1, 0  
5,10  
5,00  
4,90  
36 V  
48 V  
53 V  
75 V  
36 V  
48 V  
53 V  
75 V  
4,80  
0,0  
0,0 5,0 10,0 15,0 20,0 25,0 30,0 35,0 40,0 [A]  
40,0 45,0 50,0 55,0 60,0 65,0 70,0[A]  
Output voltage vs. load current at Tref = +25°C  
Output voltage vs. load current at IO > max IO , Tref = +25°C  
E
13  
Technical Specification  
EN/LZT 146 307R4AAugust 2008  
PKM 4000C PINB Series  
© Ericsson Power Modules AB  
DC/DC converters, Input 36-75 V, Output 55 A/204 W  
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- Top trace: output voltage (500mV/div.).  
change (10-30-10 A) at:  
Bottom trace: load current (10 A/div.).  
Time scale: {0.1 ms/div.}.  
Tref =+25°C, VI = 53 V.  
Output Voltage Adjust (see operating information)  
Passive trim  
The resistor value for an adjusted output voltage is calculated by using  
the following equations:  
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 .  
Output Voltage Adjust Upwards, Increase:  
Radj= 5.11((5(100+%))/1.225%-(100+2%)/%) kOhm  
Eg Increase 4% =>Vout =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% =>Vout = 4.90 Vdc  
5.11(100/2-2)= 245 kOhm  
E
14  
Technical Specification  
EN/LZT 146 307R4AAugust 2008  
PKM 4000C PINB Series  
© Ericsson Power Modules AB  
DC/DC converters, Input 36-75 V, Output 55 A/204 W  
12 V Electrical Specification  
PKM 4213C PINBSP  
Tref = -40 to +90ºC, VI = 38 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  
38  
typ  
max  
75  
Unit  
V
VI  
Input voltage range  
VIoff  
VIon  
CI  
Turn-off input voltage  
Turn-on input voltage  
Internal input capacitance  
Output power  
Decreasing input voltage  
Increasing input voltage  
32  
34  
V
V
5.7  
µF  
PO  
Output voltage initial setting  
f = 100 Hz sinewave, 1 Vp-p  
50 % of max IO  
0
204  
W
SVR  
Supply voltage rejection (ac)  
61  
dB  
94.2  
93.4  
94.4  
93.3  
max IO  
92  
η
Efficiency  
%
50 % of max IO , VI = 48 V  
max IO , VI = 48 V  
Pd  
Pli  
Power Dissipation  
Input idling power  
Input standby power  
Switching frequency  
max IO  
17.7  
W
W
IO= 0, VI = 53 V  
2.8  
100  
200  
PRC  
fs  
VI = 53 V (turned off with RC)  
0 -100% of max IO  
mW  
kHz  
180  
220  
Output voltage initial setting and  
accuracy  
11.8  
12.0  
12.2  
V
Tref = +25°C, VI = 53 V, IO = max IO  
Vadj, see Note 1  
VOi  
Output adjust range  
Output voltage tolerance band  
Idling voltage  
10.8  
11.7  
11.8  
13.2  
12.3  
12.2  
50  
V
V
10-100% of max IO  
IO = 0  
V
VO  
Line regulation  
max IO  
mV  
mV  
Load regulation  
VI = 53 V, 1-100% of max IO  
20  
Load transient  
voltage deviation  
VI = 53 V, Load step 25-75-25 % of  
Vtr  
ttr  
tr  
±800  
100  
9
mV  
us  
max IO, di/dt = 1 A/  
µs,  
see Note 2  
Load transient recovery time  
Ramp-up time  
(from 1090 % of VOi)  
5
20  
ms  
10-100% of max IO  
Start-up time  
(from VI connection to 90% of VOi)  
ts  
7
0
10  
50  
17  
ms  
IO  
Output current  
A
A
A
Ilim  
Isc  
Current limit threshold  
Short circuit current  
Vo = 10.8 V, Tref < max Tref  
21  
26  
Tref = 25ºC, VO = < VOnom * 0.1  
See ripple & noise section,  
max IO, VO.  
VOac  
Output ripple & noise  
100  
200  
mVp-p  
V
Tref = +25°C, VI = 53 V, IO = 0-100%  
OVP  
Over Voltage Protection  
14.3  
of max IO  
Note 1: When using Vadj function, max output power (  
Note 2: Output filter according to Ripple & Noise section  
P
O) must not be exceeded  
E
15  
Technical Specification  
EN/LZT 146 307R4AAugust 2008  
PKM 4000C PINB Series  
© Ericsson Power Modules AB  
DC/DC converters, Input 36-75 V, Output 55 A/204 W  
12 V Typical Characteristics  
PKM 4213C PINBSP  
Efficiency  
Power Dissipation  
[%]  
95  
[W]  
16  
93  
91  
89  
87  
85  
12  
8
38 V  
48 V  
53 V  
75 V  
38 V  
48 V  
53 V  
75 V  
4
0
0,0  
3,0  
6,0  
9,0  
12,0  
15,0  
18,0 [A]  
0,0  
3,0  
6,0  
9,0  
12,0  
15,0  
18,0 [A]  
Dissipated power vs. load current and input voltage at  
ref = +25°C  
Efficiency vs. load current and input voltage at Tref = +25°C  
T
Output Current Derating  
Thermal Resistance  
[°C/W]  
8
[A]  
18,0  
3.0 m/s  
2.5 m/s  
2.0 m/s  
1.5 m/s  
1.0 m/s  
Nat. Conv.  
15,0  
12,0  
9,0  
6
4
2
6,0  
3,0  
0,0  
20 30 40 50 60 70 80 90 100 [°C]  
0,0  
0,5  
1,0  
1,5  
2,0  
2,5  
3,0 [m/s]  
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  
[V]  
[V]  
15,0  
12,20  
12,0  
9,0  
6,0  
3,0  
0,0  
12,10  
12,00  
11,90  
11,80  
38 V  
48 V  
53 V  
75 V  
38 V  
48 V  
53 V  
75 V  
0,0  
3,0  
6,0  
9,0  
12,0 15,0 18,0 [A]  
17,0  
19,0  
21,0  
23,0  
25,0  
27,0 [A]  
O
utput voltage vs. load current at Tref = +25°C  
Output voltage vs. load current at IO > max IO , Tref = +25°C  
E
16  
Technical Specification  
EN/LZT 146 307R4AAugust 2008  
PKM 4000C PINB Series  
© Ericsson Power Modules AB  
DC/DC converters, Input 36-75 V, Output 55 A/204 W  
12 V Typical Characteristics  
PKM 4213C PINBSP  
Start-up  
Shut-down  
Start-up enabled by connecting VI at:  
Tref = +25°C, IO = 17 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 = 0 A,  
Output voltage (5 V/div.).  
Time scale: 50us/div..  
Output Ripple & Noise  
Output Load Transient Response  
Output voltage ripple (50mV/div.) at:  
Tref = +25°C, IO = 17 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- Top trace: output voltage (500mV/div.).  
change (4.25-12.75-4.25 A) at:  
Tref =+25°C, VI = 53 V.  
Bottom trace: load current (4.25 A/div.).  
Time scale: {0.1 ms/div.}.  
Output Voltage Adjust (see operating information)  
Baseplate  
Passive trim  
The PKM4000C series DC/DC converters can be  
The resistor value for an adjusted output voltage is calculated by using  
the following equations:  
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.  
Output Voltage Adjust Upwards, Increase:  
Radj= 5.11((12(100+%))/1.225%-(100+2%)/%) kOhm  
Eg Increase 4% =>Vout =12.48 Vdc  
5.11(12(100+4)/1.225x4-(100+2x4)/4 = 404 kOhm  
Output Voltage Adjust Downwards, Decrease:  
Radj= 5.11(100/%-2) kOhm  
Eg Decrease 2% =>Vout = 11.76 Vdc  
5.11(100/2-2)= 245 kOhm  
E
17  
Technical Specification  
EN/LZT 146 307 R4A August 2008  
PKM 4000C PINB Series  
DC/DC converters, Input 36-75 V, Output 55 A/204 W  
© Ericsson Power Modules AB  
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)  
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 ground layer is used, it should be connected to the output  
of the DC/DC converter and the equipment ground or  
chassis.  
EMI without filter  
A ground layer will increase the stray capacitance in the PCB  
and improve the high frequency EMC performance.  
External filter (class B)  
Required external input filter in order to meet class B in  
EN 55022, CISPR 22 and FCC part 15J.  
Output ripple and noise  
Output ripple and noise measured according to figure below.  
See Design Note 022 for detailed information.  
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  
Output ripple and noise test setup  
EMI with filter  
E
18  
Technical Specification  
EN/LZT 146 307R4AAugust 2008  
PKM 4000C PINB Series  
© Ericsson Power Modules AB  
DC/DC converters, Input 36-75 V, Output 55 A/204 W  
is not required when powering the DC/DC converter from a  
low impedance source with short, low inductance, input  
power leads.  
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.  
External Decoupling Capacitors  
When powering loads with significant dynamic current  
requirements, the voltage regulation at the point of load can  
be improved by addition of decoupling 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.  
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.  
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.  
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.  
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. 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.  
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 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 100μF capacitor across the  
input of the converter will help insure stability. This capacitor  
E
19  
Technical Specification  
EN/LZT 146 307R4AAugust 2008  
PKM 4000C PINB Series  
© Ericsson Power Modules AB  
DC/DC converters, Input 36-75 V, Output 55 A/204 W  
Operating information continued  
Thermal Consideration  
Parallel Operation  
General  
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.  
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 according to the information given 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.  
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  
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.  
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  
P1  
Device  
Pcb  
Designation  
Tref  
max value  
110º C  
P2  
P3  
P4  
Mosfet  
Tsurface  
Tsurface  
Tsurface  
120º C  
120º C  
130º C  
Over Temperature Protection (OTP)  
Mosfet  
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.  
Transformer  
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.  
E
20  
Technical Specification  
EN/LZT 146 307R4AAugust 2008  
PKM 4000C PINB Series  
© Ericsson Power Modules AB  
DC/DC converters, Input 36-75 V, Output 55 A/204 W  
Thermal Consideration continued  
Connections  
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.  
Top View  
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  
Pin  
Designation  
+In  
Function  
Positive input  
1
2
RC  
Remote control  
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
- In  
Negative input  
4,10  
5
- Out  
- Sen  
Vadj  
+ Sen  
+ Out  
Negative output  
Negative remote sense  
Output voltage adjust  
Positive remote sense  
Positive output  
6
3. Max allowed ambient temperature is:  
Max Tref - ΔT.  
7
8,9  
E.g PKM 4213C PINBSP at 2m/s:  
1
1. ((  
) - 1) × 204 W = 14.6 W  
0.933  
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.  
E
21  
Technical Specification  
EN/LZT 146 307 R4A August 2008  
PKM 4000C PINB Series  
DC/DC converters, Input 36-75 V, Output 55 A/204 W  
© Ericsson Power Modules AB  
Mechanical Drawing for Single Pin out  
E
22  
Technical Specification  
EN/LZT 146 307 R4A August 2008  
PKM 4000C PINB Series  
DC/DC converters, Input 36-75 V, Output 55 A/204 W  
© Ericsson Power Modules AB  
Mechanical Drawing for Double Pin out  
E
23  
Technical Specification  
EN/LZT 146 307 R4A August 2008  
PKM 4000C PINB Series  
DC/DC converters, Input 36-75 V, Output 55 A/204 W  
© Ericsson Power Modules AB  
Mechanical Drawing for Base plate option with Single Pin out  
E
24  
Technical Specification  
EN/LZT 146 307 R4A August 2008  
PKM 4000C PINB Series  
DC/DC converters, Input 36-75 V, Output 55 A/204 W  
© Ericsson Power Modules AB  
Mechanical Drawing for Base plate option with Double Pin out  
E
25  
Technical Specification  
EN/LZT 146 307 R4A August 2008  
PKM 4000C PINB Series  
DC/DC converters, Input 36-75 V, Output 55 A/204 W  
© Ericsson Power Modules AB  
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  
105 < Ω/square < 1012  
Surface resistance  
Bake ability  
Tray capacity  
Tray height  
The trays are not bakeable  
20 products/tray  
25.4 mm [1.0 inch]  
Box capacity  
Tray weight  
20 products (1 full tray/box)  
100 g empty, 1400 g full maximum  
E
26  
Technical Specification  
EN/LZT 146 307 R4A August 2008  
PKM 4000C PINB Series  
DC/DC converters, Input 36-75 V, Output 55 A/204 W  
© Ericsson Power Modules AB  
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)  
Damp heat  
IEC 60068-2-1 Bc  
Temperature TA  
Duration  
-40°C  
2 h  
IEC 60068-2-3 Ca  
Temperature  
Humidity  
Duration  
+85 °C  
85 % RH  
1000 hours  
Dry heat  
IEC 60068-2-2 Ba  
IEC 60068-2-1 Ad  
Temperature  
Duration  
+125 °C  
1000 h  
Heat (in operation)  
Immersion in cleaning solvents  
Temperature TA  
Duration  
+90 °C  
72 h  
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  
100 g  
3 ms  
Half sine  
6
Number of pulses  
18 (3 + 3 in each perpendicular direction)  
Resistance to soldering heat  
Robustness of terminations  
Solderability  
IEC 60068-2-20 Tb  
Method 1A  
Solder temperature  
Duration  
260 °C  
10 s  
IEC 60068-2-21 Ua1  
Tensile force  
20 N for 10 s /signal pin  
40 N for 10 s /power pin  
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  

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