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A4975 Description

The A4975 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 bined 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.

A4975 Key Features

  • ±1.5 A continuous output current
  • 50 V output voltage rating
  • Internal PWM current control
  • 3-bit nonlinear DAC
  • Fast, mixed fast/slow, and slow current decay modes
  • Internal thermal shutdown circuitry
  • Crossover-current and UVLO protection
  • BLANKING
  • A4975SLBTR-T
  • A4975SB-T is no longer in production. The device should not be purchased for new design applic