Full-Bridge PWM Motor Driver with Current Control and Protection

A4973

A4973

The A4973 provides bidirectional PWM current control of inductive loads, with selectable current decay modes, integrated protection features, and a sleep mode for reduced power consumption.

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Top Features

Packaging

  • ±1.5 A continuous output current
  • 50 V output voltage rating
  • 3 V to 5.5 V logic supply voltage
  • Internal PWM current control
  • Fast and slow current-decay modes
  • Sleep (low current consumption) mode
  • Internal transient-suppression diodes
  • Internal thermal shutdown circuitry
  • Crossover current and UVLO protection

The A4973 is supplied in a choice of two power packages; a 16-pin dual-in-line plastic package with copper heat-sink tabs, and a 16-pin plastic SOIC with copper heat-sink tabs. For both package styles, the power tab is at ground potential and needs no electrical isolation. Each package type is available in a lead (Pb) free version (100% matte tin plated leadframe).

 

Part Number Specifications and Availability