Ericsson Internal
EGLANDY
PRODUCT SPECIFICATION
4 (5)
Prepared (also subject responsible if other)
No.
2/1301-BMR 636 01/64 Uen
16
Technical Specification
Approved
Checked
Date
Rev
Reference
EN/LZT 146 394 R5D October 2013
PKB 4000 series
DC/DC converters, Input 36-75 V, Output 30 A/90 W
SEC/D (ALICE SU)
ESECZHW
2008-6-19
A
© Ericsson AB
1.8 V/25 A Typical Characteris tics
PKB 4418 PINB
Start-up
Shut-down
Start-up enabled by connecting VI at:
Tref = +25°C, VI = 53 V,
IO = 25 A resistive load.
Top trace: output voltage (1 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (5 ms/div.).
Shut-down enabled by disconnecting VI at:
Tref = +25°C, VI = 53 V,
IO = 25 A resistive load.
Top trace: output voltage (1 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (0.1 ms/div.).
Output Ripple & Noise
Output Load Transient Response
Output voltage ripple at:
Tref = +25°C, VI = 53 V,
IO = 25 A resistive load.
Trace: output voltage (20 mV/div.).
Time scale: (2 µs/div.).
Output voltage response to load current step- Top trace: output voltage (200 mV/div.).
change (6.25-18.75-6.25 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)
Pas s ive adjus t
The resistor value for an adjusted output voltage is calculated by
using the following equations:
Output Voltage Adjust Upwards, Increase:
5.11´ 1.8
100+ D%
511
æ
ö
kW
Radj =
-
- 10.22
ç
ç
÷
÷
1.225´ D%
D%
è
ø
Example: Increase 4% =>Vout = 1.872 Vdc
æ 5.11´ 1.8
100+ 4
511
4
ö
kW = 57.3 kW
-
- 10.22
ç
ç
÷
÷
1.225´ 4
è
ø
Output Voltage Adjust Downwards, Decrease:
100
æ
ö
kW
Radj = 5.11ç
- 2÷
ç
÷
D%
è
ø
Example: Decrease 20% =>Vout =1.44 Vdc
æ100
ö
kW = 15.3 kW
5.11
- 2
ç
÷
÷
ç
20
è
ø
ERICSSON [ ERICSSON ]
