New Industry Products

Astec Power Intros ALQ25B50 Bus Converter Series

September 23, 2003 by Jeff Shepard

Astec Power (Carlsbad, CA), a developer of battery-free, power quality products, announced the availability of its new ALQ25B50 bus converter series for new intermediate bus applications. Packaged in an open-frame, industry-standard, quarter-brick, the bus converters are capable of delivering up to 300W of output power. The new devices are cost-effective, front-end conversion schemes for driving multiple, point-of-load, converter applications.

With patented topology, the ALQ25B50 bus converters achieve up to 96% efficiency. The devices accept an input range of 42V to 53V (48V nominal) and deliver a stepped-down output voltage of 12V (with ±10% line regulation) for up to 25A. The open-loop dc conversion scheme allows the converters to exhibit purely resistive output characteristics, which eases system stability management with multiple point of loads employed in a distributed power architecture.

The new ALQ25B50 modules come with rich feature sets, including input over-voltage protection and under-voltage lockout with hysteresis to prevent false triggering at low input voltages as well as output over-current and over-temperature protection. The devices also offer a choice of either positive or negative logic control for the remote on/off pin. As an added convenience, designers can select models with pin lengths of either 3.7mm or 5mm.

Designed to operate in temperatures from -40°C to +85°C, the devices meet basic insulation requirements as well as industry standards for safety and performance. The robust modules have a calculated mean time between failures of more than one million hours. Offered in four standard configurations based on pin length and enable function, the ALQ25B50 models are priced competitively at less than $48 in OEM quantities. Samples are available now with production release slated for October 2003.