Artesyn Offers Full Bricks for RF Power Amplifiers

Artesyn Technologies has launched a series of full-brick isolated dc-dc converters designed specifically for use with RF (radio frequency) power amplifiers and similar telecom equipment. The new RFF series of converters comprises five 28 V output models, offering a choice of two input voltage ranges and three output current ratings for optimal applications flexibility.

All five models feature high power output capabilities and are rated for continuous operation across a wide temperature range, making them suited for use with high availability equipment deployed in demanding outdoor environments, such as cellular basestations and last mile broadband systems. The top of the range RFF700 model is capable of delivering 25 A at 28 V (700 W), yielding a power density in excess of 127 W/in³.

RFF series converters can be connected in parallel for high current applications and will automatically share load current, without the need for any additional circuitry. As many as 11 converters can be connected in this manner, and by adjusting their output voltages to within 1%, users can obtain up to 95% rated current from each unit.

The converters have an industry-standard full-brick pin-out and footprint of 4.6 x 2.4 inches, and an above-board height of 0.5 inch. They are packaged as fully encapsulated units intended for throughhole board mounting and incorporate aluminum baseplate technology for conduction cooling. Various heatsink attachment methods are available, and the modules can be supplied with threaded or blank inserts to suit customers' preferences. Artesyn's RFF series converters can operate over a baseplate temperature range of -40 to +100 degrees Celsius.

The converters are compliant to RoHS Directive EU 2002/95/EC and intended for telecom, server, storage and other applications that will continue to use lead solder. Artesyn's RFF500/600/700 series full-brick converters are available for immediate delivery.

In OEM quantities of 1000, unit prices range from $137.50US for the 500 W, 24 V-input model, to $181.50 US for the 700 W model.