Full-Bridge PWM Microstepping Motor Driver

The A3955 is designed to drive one winding of a bipolar stepper motor in a microstepping mode. The outputs are rated for continuous output currents to 1.5 A and operating voltages to 50 V. Internal pulse width modulated (PWM) current control combined with an internal three-bit nonlinear digitalto- Analog converter allows the motor current to be controlled in full-, half-, quarter-, or eighth-step (microstepping) modes. Nonlinear increments minimize the number of control lines necessary for microstepping. Microstepping provides increased step resolution, and reduces torque variations and resonance problems at low speed.
By Allegro MicroSystems, Inc.
A3955 's PackagesA3955 's pdf datasheet

A3955 Pinout, Pinouts
A3955 pinout,Pin out
This is one package pinout of A3955,If you need more pinouts please download A3955's pdf datasheet.

A3955 Application circuits
A3955 circuits
This is one application circuit of A3955,If you need more circuits,please download A3955's pdf datasheet.

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