Ericsson Internal
EGUHAIL
PRODUCT SPECIFICATION
4 (5)
Prepared (also subject responsible if other)
No.
2/1301-BMR 636 01/14 Uen
19
Technical Specification
Approved
Checked
Date
Rev
EN/LZT 146 3R9e4feRre4nAceSep 2008
PKB 4000 series
SEC/D (Julia You)
ESECZHW
2008-9-4
B
© Ericsson Power Modules AB
DC/DC converters, Input 36-75 V, Output 30 A/90 W
3.3 V/20 A Typical Characteristics
PKB 4610 PINB
Start-up
Shut-down
Start-up enabled by connecting VI at:
TP1 = +25°C, VI = 53 V,
IO = 20 A resistive load.
Top trace: output voltage (2 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (10 ms/div.).
Shut-down enabled by disconnecting VI at:
TP1 = +25°C, VI = 53 V,
IO = 20 A resistive load.
Top trace: output voltage (2 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:
TP1 = +25°C, VI = 53 V,
IO = 20 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 (5-15-5 A) at:
TP1 =+25°C, VI = 53 V.
Bottom trace: load current (10 A/div.).
Time scale: (0.1 ms/div.).
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× 3.30
(
100 + ∆%
)
511
⎞
⎜
⎜
⎟
Radj =
−
−10.22 kΩ
⎟
⎠
1.225× ∆%
∆%
⎝
Example: Increase 4% =>Vout = 3.432 Vdc
⎛ 5.11× 3.30
(
100 + 4
)
511
4
⎞
⎜
⎜
−
− 10.22⎟ kΩ = 220 kΩ
⎟
1.225 × 4
⎝
⎠
ERICSSON [ ERICSSON ]
