Stepper-Motor Drivers Save on Space

Afamily of unipolar, twophase, stepper-motor driver ICs is designed to simplify peripheral circuitry design and reduce space while maintaining good reliability. The SLA7070MPR Series, developed by Allegro MicroSystems Europe, offer a space-saving solution by including a built-in resistor for current- sense and protection circuitry against load short-circuit or opencircuit operation. A common interface signal with series pin compatibility simplifies peripheral circuitry design. The built-in motor coil, short- and open-circuit protection, and varied output-current ratings (1 A, 1.5 A, 2 A, 3 A) all help to boost reliability.