Dual Full-Bridge PWM Motor Driver for Two-Phase Bipolar Stepper Motors

A3966

A3966 Two Phase Bipolar Stepper Motor Product Image

The A3966 simplifies the control of two-phase bipolar stepper motors with its dual full-bridge design, integrated PWM current control, and optimized low saturation voltage outputs for reduced power dissipation.

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Top Features

Packaging

  • ±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 protection

The A3966 is supplied in a 16-lead plastic wide SOIC with two pins internally fused to the die pad for enhanced thermal dissipation. These pins are at ground potential and need no electrical isolation. The device is lead (Pb) free, with 100% matte tin leadframe plating.

Part Number Specifications and Availability