Ericsson Internal
ESECZHW
PRODUCT SPECIFICATION
4 (5)
Prepared (also subject responsible if other)
No.
2/1301-BMR 636 01/E4 Uen
7
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)
EZYPING
2009-8-5
A
© Ericsson AB
1.0 V/30 A Typical Characteristics
PKB 4318N PINB
Start-up
Shut-down
Start-up enabled by connecting 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: (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: (0.5 ms/div.).
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 (100 mV/div.).
change (7.5-22.5-7.5 A) at:
Bottom trace: load current (30 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:
For a desired change of the nominal output voltage, the value of the
resistor should be
Vadj
Radj =
−1(kΩ)
Voi −Vadj
Where
is adjusted output voltage, and
is initial output
Voi
Vadj
voltage.
Vertical bars indicate absolute value.
ERICSSON [ ERICSSON ]
