Description

The A3901 is a dual full-bridge motor driver, designed for low voltage portable applications involving bipolar stepper or brush dc motors. The outputs have been optimized 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.

Features and Benefits

▪Low RDS(on) outputs

▪ Full- and half-stepping capability

▪ Small package

▪ Forward, reverse, and brake modes for dc motors

▪ Sleep mode with zero current drain

▪ PWM control up to 250 kHz

▪ Crossover-current protection

▪ Thermal shutdown (TSD)