800W DC-DC in ¼-brick outline

November 08, 2017 //By Graham Prophet
Artesyn Embedded Technologies’ ADQ800 series is an 800W quarter-brick isolated DC-DC converter with high efficiency and thermal performance for telecom network and data centre equipment.

Capable of delivering up to 70A output current with a single fully regulated 11.8V output, the converters have no minimum load requirement. The units have an input voltage range of 40 to 60V and are primarily designed for use with standard 48V supplies in computing and server applications, as well as regulated 48V supplies in telecom equipment. An efficiency of typically 96% at full load and the ability to operate over an ambient temperature range of -40 to 85C, suits them for use as isolated converters in a distributed power architecture supplying power to non-isolated converters. Their design is optimized for forced air or conduction cooling and an aluminum baseplate option is available for enhanced thermal performance. The conversion technology employs 175 kHz fixed frequency switching to help minimize external EMI filtering requirements.

 

The converters are protected against output overvoltage, output overcurrent and overtemperature conditions. ADQ800 series converters have an enhanced pre-bias start-up capability and, for high current applications, two converters can be connected in parallel, automatically using the droop method of current sharing and have an enable function to facilitate sequenced startup control of the unit. Baseplate models have an installed height of 0.53 inch (13.6 mm).

 

Artesyn Embedded Technologies; www.artesyn.com/computing/