A3966 Datasheet - Allegro MicroSystems

A3966 Dual Full-Bridge PWM Motor Driver

The A3966 is designed to drive both windings of a two-phase bipolar stepper motor. The device includes two full-bridges capable of continuous output currents of ±650 mA and operating voltages to 30 V. Motor winding current can be controlled by the internal fixed-frequency, pulse-width modulated (PWM.

A3966 Features

* ▪ ±650 mA continuous output current ▪ 30 V output voltage rating ▪ Internal fixed-frequency PWM current control ▪ Satlington® sink drivers ▪ User-selectable blanking window ▪ Internal ground-clamp and flyback diodes ▪ Internal thermal-shutdown circuitry ▪ Crossover-current protection and UVLO protec

A3966_AllegroMicroSystems.pdf