XRLP-10T03X Datasheet, PDF (11/16 Pages) Bel Fuse Inc. – ISOLATED DC/DC CONVERTERS

ISOLATED DC/DC CONVERTERS
36 Vdc - 80 Vdc Input,
3.3 Vdc/3 A Output
Aug. 13, 2010
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Over Current Protection
To provide protection in a fault output overload condition, the module is equipped with internal current-limiting
circuitry and can endure current limiting for a few mili-seconds. If the over-current condition persists beyond a few
milliseconds, the module will shut down into hiccup mode and restart once every 400mS. The module operates
normally when the output current goes into specified range. The typical average output current is 5A during
hiccup.
CH1: Output voltage waveform
CH2: Output current waveform
Test condition: 48V input with a Rout (0.171ohm)
Over Voltage Protection
CH1: Output voltage waveform
CH2: Output current waveform
Test condition: 48V input with a Rout (0.171ohm)
Expansion of on time portion of above figure
The output overvoltage protection consists of circuitry that monitors the voltage on the output terminals. If the
voltage on the output terminals exceeds the over voltage protection threshold, the module will shutdown into
hiccup mode and restart once every 400mS. The module operates normally when the fault is cleared.
Test setup:
Waveform:
R=22K
Vo+
Trim
Vo-
R
K
CH1: Output voltage waveform
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com
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