Power Electronics / Power Management


Half-brick 150 W converters

27 February 2019 Power Electronics / Power Management

New from XP Power is the QSB150 series of 150 W, half brick DC-DC converters, aimed at a wide range of applications where an ultra-wide input range is required.

Conforming to the industry standard half brick footprint of 61,5 x 57,9 x 12,7 mm, and having pin-out compatibility with existing industry standards, the QSB150 is highly efficient, typically up to 92%.

Available in six regulated single-output models, covering all the popular nominal output voltages from +12 to +48 V d.c., a voltage trim function allows adjustment of ±10% of stated output if required to accommodate line losses or non-standard voltage requirements.

With an ultra-wide input range of 9–75 V d.c., these units accept all nominal inputs of 12, 24 and 48 V d.c. By accepting three nominal battery voltages, using the QSB150 negates the need for a change in end equipment. Input to output isolation is 1500 V d.c., and a remote on/off input provides a method of sequencing startup and providing external control of the unit.

The QSB150 can operate in a wide range of environments and temperatures from – 40°C to a maximum baseplate temperature of +100°C.



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