Full-Bridge PWM Microstepping Motor Driver with Selectable Decay Modes

A4975

A4975

The A4975 offers precise microstepping control of bipolar stepper motors, with selectable decay modes (slow, fast, mixed), an integrated DAC for current control, and internal protection features.

* Note: If you have issues logging into this feature you may need to enable 3rd party cookies in your browser settings A4975 ECAD Model Type Image

Top Features

Packaging

  • ±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

The A4975 is supplied in a choice of two power packages; a 16-pin dual-in-line plastic package with copper heat-sink tabs (suffix ‘B’), and a 16-lead plastic SOIC with internally fused pins (suffix ‘LB’). For both package styles, the thermally enhanced pins are at ground potential and need no electrical isolation. Both packages are lead (Pb) free, with leadframe plating 100% matte tin.

 

Part Number Specifications and Availability