Low profile 800W quarter brick DC-DC converter targets telecom and data centre servers

November 08, 2017 // By Nick Flaherty
Artesyn Embedded Technologies has launched a 800W quarter-brick isolated dc-dc converter with the efficiency, profile and thermal performance for telecom network and data centre equipment.

The ADQ800 series delivers up to 70A output current with a single fully regulated 11.8 V output with no minimum load requirement.

The ADQ800 series has an input voltage range of 40 to 60 V and is primarily designed for use with standard 48 V supplies in computing and server applications, as well as regulated 48 V supplies in telecom equipment. An efficiency of typically 96 percent at full load and the ability to operate over an ambient temperature range of -40 to +85 ºC makes them suited to the isolated converter in a distributed power architecture supplying power to non-isolated converters. Their design is optimised 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 minimise external EMI filtering requirements.

The converters are comprehensively protected against output overvoltage, output overcurrent and overtemperature conditions. The 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.  

The Artesyn ADQ800 series converters are low profile units as the baseplate models have an installed height of 13.6 mm (0.53in).


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