Ericsson Internal
ESHUHAN
PRODUCT SPECIFICATION
4 (5)
Prepared (also subject responsible if other)
No.
2/1301-BMR 636 01/44 Uen
13
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 (Julia You)
EQUENXU
2008-4-8
A
© Ericsson AB
1.5V/30 A Typical Characteristics
PKB 4418 PIOANB
Start-up
Shut-down
Start-up enabled by connecting VI at:
Tref = +25°C, VI = 53 V,
Top trace: output voltage (0.5 V/div.).
Bottom trace: input voltage (20 V/div.).
Time scale: (5 ms/div.).
Shut-down enabled by disconnecting VI at:
Tref = +25°C, VI = 53 V,
IO = 30 A resistive load.
Top trace: output voltage (0.5 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (0.1 ms/div.).
I
O = 30 A resistive load.
Output Ripple & Noise
Output Load Transient Response
Output voltage ripple at:
Tref = +25°C, VI = 53 V,
IO = 30 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 (7.5-22.5-7. 5 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 adjust
The resistor value for an adjusted output voltage is calculated by
using the following equations:
Output Voltage Adjust Upwards, Increase:
⎛ 5.11×1.5 100 + Δ%
⎞
(
)
511
Radj =
−
−10.22 kΩ
⎜
⎟
⎜
⎟
1.225× Δ%
Δ%
⎝
⎠
Output Voltage Adjust Downwards, Decrease:
100
⎛
⎞
⎠
Radj = 5.11×
− 2 kΩ
⎜
⎝
⎟
Δ%
Example: Increase 4% =>Vout = 1.56 Vdc
⎛ 5.11×1.5 100 + 4
⎞
(
)
511
4
−
−10.22 kΩ = 24.7 kΩ
⎜
⎟
⎜
⎟
1.225× 4
⎝
⎠
Decrease 4% =>Vout = 1.44 Vdc
100
4
⎛
⎞
⎠
5.11×
− 2 kΩ = 117.5kΩ
⎜
⎝
⎟
ERICSSON [ ERICSSON ]
