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12V DC/DC converters for smart grid, wireless backhaul

Posted: 10 Mar 2014     Print Version  Bookmark and Share

Keywords:Murata Power Solutions  smart grid  wireless backhaul  DC/DC converter 

Murata has debuted the UWQ 240W quarter-brick DC/DC converter from Murata Power Solutions intended for wireless backhaul, smart grid and a broad range of networking and other telecommunications applications. With a fixed 12VDC/20A single output, this DOSA compatible open-frame quarter brick package occupies only 58.4 x 36.8 x 11.7mm, detailed the company.

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 18-60VDC around a nominal 48VDC. A remote sense feature provides the automatic adjustment of Vout to make up for line and load losses while a trim function allows ±10 percent of Vout. The series has tight load and line regulation that ensures that the output voltage does not vary beyond ±1.25 percent when the load changes.

The UWQ-12/20-T48 has a typical efficiency of 92 percent and up to three 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°C to 85°C. Input to output isolation is 2.25kVDC with a basic insulation system to meet industry safety requirements. An optional baseplate is offered to suit conduction cooled applications.

Pricing is in the $35 range for volume production quantities with lead-times from stock to 12 weeks.

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