40W DC/DC converter suits smart grid applications
A 40W quarter-brick DC/DC converter, from Murata Power Solutions, has been designed for wireless backhaul, smart grid, and a broad range of networking and other telecommunications applications. With a fixed 12 VDC / 20 A single output, the UWQ-12/20-T48 is DOSA compatible and occupies only 58.4 x 36.8 x 11.7mm.
This compact device helps designers conserve valuable board footprint for today’s space-constrained designs. The converter accepts a wide 3:1 input range of voltage from 18 to 60 VDC around a nominal 48 VDC. A remote sense feature provides the automatic adjustment of Vout to make up for line and load losses while a trim function allows +/-10% of Vout. The series has tight load and line regulation that ensures that the output voltage does not vary beyond +/- 1.25% when the load changes.
The UWQ-12/20-T48 has a typical efficiency of 92% and up to 3 units can operate in parallel in order to provide redundancy or load sharing of a higher power requirement. Controls include remote On/Off control of either negative or positive logic. In addition, the converter has a number of protection features including overcurrent, overtemperature, input undervoltage and output short circuit.
The UWQ converter is designed to operate in environments ranging from - 40 to + 85 degrees C. Input to output isolation is 2,250 VDC with a Basic insulation system to meet industry safety requirements. An optional baseplate is offered to suit conduction cooled applications.
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