Baseplate cooled quarter-brick DC/DC converter is industrial class

The first in a series of industrial class DC/DC converter modules has been announced by Murata. The ICQ series is designed for rough service/industrial applications and incorporates a specially designed enclosed package that uses baseplate cooling to improve thermal performance. The electrical and mechanical design allows the series to deliver the full 255 Watt output power with a baseplate temperature in the range of -40 to +90 degree C without derating.

The ICQ0120V1PC 250W isolated DC/DC quarter-brick converter achieves typically 92 per cent efficiency and are believed to be the only power modules on the market to offer 250W of output power from a quarter-brick format with a 4:1 (9 to 36V DC) Vin range.

The series is designed to meet the environmental stress limits for shock and vibration specified in MIL-STD-810G throughout its service life. The ICQ0120V1PC incorporates proprietary circuit architectures, synchronous rectification, advanced packaging, and thermal design approaches.

The initial ICQ delivers a regulated 12V DC output rated at 20A and provides a basic insulation system for galvanic I/O isolation rated at 2,500V DC. The ICQ has been designed to meet EN60950, UL/CSA safety requirements for imbedded power modules.

The industry-standard quarter-brick package measures 39.1 x 60.7 x 12.7mm (1.54 x 2.39 x 0.50inch) and is a drop-in replacement for lower power, less efficient converters.

All models come with a positive logic remote on/off control as the standard configuration, and full protection features including input transient protection to 50V DC, over temperature shutdown, output over-current, and input under-voltage lockout.

The ICQ series is scheduled for production release in January 2017, with pre-production samples available upon request.


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