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A3953 Description

Designed for bidirectional pulse width modulated (PWM) current control of inductive loads, the A3953 is capable of continuous output currents to ±1.3 A and operating voltages to 50 V. Internal fixed off-time PWM current-control circuitry can be used to regulate the maximum load current to a desired value. The peak load current limit is set by the user’s selection of an input reference voltage and external sensing...

A3953 Key Features

  • ±1.3 A continuous output current
  • 50 V output voltage rating
  • 3 V to 5.5 V logic supply voltage
  • Internal PWM current control
  • Saturated sink drivers (below 1 A)
  • Fast and slow current-decay modes
  • Automotive capable
  • Sleep (low current consumption) mode
  • Internal transient-suppression diodes
  • Internal thermal shutdown circuitry