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), current-control circuitry. The peak load current limit is set by user selection of a reference voltage and current-sensing resistors.
The fixed-frequency pulse duration is set by a user-selected external RC Timing network. The capacitor in the RC Timing network also determines a user-selectable blanking window that prevents false triggering of the PWM current-control circuitry during switching transitions.
By Allegro MicroSystems, Inc.
A3966 's PackagesA3966 's pdf datasheet

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A3966 Application circuits
A3966 circuits
This is one application circuit of A3966,If you need more circuits,please download A3966's pdf datasheet.

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