Allegro MicroSystems, Inc. Introduces a Fully Integrated DMOS Full-Bridge Motor Driver IC

Designed for Office Automation Applications

May 10, 2011

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Worcester, MA - Allegro MicroSystems, Inc. introduces a new fully integrated single full-bridge DMOS motor driver IC with over-current protection (OCP), internal adjustable pulse-width-modulation (PWM), and a fully integrated charge pump. Allegro’s A4950 is intended for use as a DC brush motor driver with continuous output currents up to 2.5 amperes. Two input terminals are provided for use in controlling the speed and direction of a DC motor with externally applied PWM control signals.

Internal synchronous rectification provides lower power dissipation during PWM operation. Other internal circuit protection includes over-current protection (OCP), motor lead short-to-ground or short-to-supply protection, thermal shutdown with hysteresis, under-voltage monitoring of VBB, and crossover current protection.

The A4950 is targeted at the office automation, industrial and consumer markets. It is provided in an 8L SOICN package with exposed thermal pad (Suffix LJ) for enhanced thermal dissipation.



Allegro MicroSystems, LLC is a leader in developing, manufacturing and marketing high-performance semiconductors. Allegro's innovative solutions serve high-growth applications within the automotive market, with additional focus on office automation, industrial, and consumer/communications solutions. Allegro is headquartered in Worcester, Massachusetts (USA) with design, applications, and sales support centers located worldwide. Further information about Allegro can be found at www.allegromicro.com.


Editorial Contact:

Stephanie Fennelly
Director - Marketing Communications
Tel: (508) 854-5363
sfennelly@allegromicro.com
.

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