NEW A3901 DUAL FULL-BRIDGE LOW-VOLTAGE MOTOR DRIVER FROM SOLID STATE SUPPLIES IS THE PORTABLE SOLUTION

Contained in a sub-miniature package, the outputs in the A3901 have been optimised for low voltage drop, with currents up to ±400 mA (±800 mA with outputs paralleled) and an operating voltage range of 2.5 to 5.5 V. The four inputs (IN1 to IN4) can control a bipolar stepper motor in full or half-step mode, or dc motors in forward, reverse, or brake mode. The inputs can be PWM’d for current or speed control at frequencies up to 250 kHz.

Internal protection circuitry includes thermal shut down (TSD) and crossover (shoot-through) protection. The A3901 is supplied in an RoHS compliant 3 x 3 x 0.75 mm nominal, 10-lead MLP package, with an exposed thermal pad.