Ericsson Internal
EZYPING
PRODUCT SPECIFICATION
4 (5)
Prepared (also subject responsible if other)
No.
2/1301-BMR 636 01/74 Uen
10
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 (Betty Wu)
ESECZHW
2009-2-9
B
© Ericsson AB
1.2V/30 A Typical Characteristics
PKB 4318 PIOBNB
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 (50 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,
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 (5.5-17.5-5.5 A) at:
Tref =+25°C, VI = 53 V.
Bottom trace: load current (10 A/div.).
Time scale: (0.1 ms/div.).
I
O = 30 A resistive load.
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:
⎛ 5.11×1.2 100 + Δ%
⎞
(
)
511
Radj =
−
−10.22 kΩ
⎜
⎟
⎜
⎟
0.6× Δ%
Δ%
⎝
⎠
Output Voltage Adjust Downwards, Decrease:
100
⎛
⎞
⎠
Radj = 5.11×
− 2 kΩ
⎜
⎝
⎟
Δ%
Example: Increase 4% =>Vout = 1.25 Vdc
⎛ 5.11×1.2 100 + 4
⎞
511
4
−
−10.22 kΩ = 127.7 kΩ
⎜
⎟
⎜
⎟
0.6× 4
⎝
⎠
Decrease 4% =>Vout = 1.15 Vdc
100
4
⎛
⎞
⎠
5.11×
− 2 kΩ = 117.5kΩ
⎜
⎝
⎟