DC Motor Driver comes in 2.0 x 2.0 mm package.
Press Release Summary:
With input voltage range of 3.0-5.5 V, bi-directional Model A3903 produces output currents up to 500 mA. Output full-bridge incorporates source side linear operation to allow constant voltage supply across motor coil. Logic input pins are provided to control motor direction of rotation, brake, and standby modes and to allow optional PWM of sink drivers. Housed in 8-lead DFN package, Pb-free driver includes thermal shut down, under voltage lockout, and crossover protection.
Original Press Release:
Allegro Introduces a New Low Voltage, Bi-Directional DC Motor Driver in an Extremely Small 2.0 x 2.0 mm Package
High output current and wide operating voltage range ideal for portable applications
Worcester, MA, June 20, 2007 - Allegro MicroSystems, Inc. introduces a new low voltage bi-directional DC motor driver with an input voltage range of 3.0 V to 5.5 V and output currents up to 500 mA. The unique output full-bridge incorporates source side linear operation to allow a constant voltage supply across the motor coil. This regulated output minimizes motor voltage change due to I*Rdson variation and battery voltage tolerance. Allegro's new motor driver is targeted at the portable and instrumentation markets.
Logic input pins are provided to control the motor direction of rotation, brake and standby (< 500 nA supply current) modes and to allow optional PWM of the sink drivers. Internal protection circuitry includes thermal shut down, under voltage lockout, and crossover (shoot through) protection.
Allegro's A3903 is supplied in a 2.0 mm x 2.0 mm x 0.575 mm nominal, 8-lead DFN package, with exposed thermal pad (package suffix "EE"). This small footprint package is lead (Pb) free, with 100% matte tin leadframe plating. It is priced at $0.45 in quantities of 1,000 and has a 12-week typical lead-time to market. For more information on Allegro's new low voltage motor driver, please access the following link: http://vocuspr.vocus.com/VocusPR30/Url.aspx?516867x719x625
About Allegro
Allegro MicroSystems, Inc. is a global leader in the developing, manufacturing and marketing of high-performance power integrated circuits and integrated Hall-effect magnetic sensors. Allegro's innovative, system-level solutions serve high-growth applications within the automotive, computer/office automation, industrial, consumer and communications markets. With more than 2,500 employees, Allegro is headquartered in Worcester, MA. Further information about Allegro can be found at www.allegromicro.com .
