Limited Internal
E
EBAOCMA
PRODUCT SPECIFICATION
4 (5)
Prepared (also subject responsible if other)
No.
2/1301-BMR 637 02/2 Uen
7
Technical Specification
Approved
Checked
Date
Rev
Reference
EN/LZT 146 306 R4A July 2008
PKM 4000D PINB Series
DC/DC converters, Input 36-75 V, Output 40 A/132 W
SEC/D (Kevin Zhou)
MICOSPE
2006-11-22
A
© Ericsson Power Modules AB
2.5 V Typical Characteristics
PKM 4119D PINB
Start-up
Shut-down
Place your
graph here
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 = 4 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 = 40 A resistive load,
T
VI = 53 V.
Output Ripple & Noise
Output Load Transient Response
Place your graph here
Place your
graph here
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 (100mV/div.).
change (10-30-10 A) at:
Bottom trace: load current (20 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 PKM4000D 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 PKM4000D. The baseplate is
intended to be mounted on a cold wall to transfer
heat away from the converter. By mounting
PKM4000D 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
ERICSSON [ ERICSSON ]
