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A3918 - Low Voltage DC Motor Driver

General Description

Designed for pulse width modulated (PWM) control of a low voltage DC motor, the A3918 is capable of output currents up to 1.5 A and operating voltages from 2.5 to 9 V.

The A3918 has an internal fixed off-time PWM timer that sets a peak current based on the selection of a current sense resistor.

Key Features

  • 2.5 to 9 V operation.
  • Internal PWM current control.
  • Synchronous rectification for reduced power dissipation.
  • Peak current output flag.
  • Undervoltage lockout.
  • Low RDS(on) outputs.
  • Small package.
  • Brake mode for DC motor.
  • Sleep function.
  • Crossover-current protection.
  • Thermal shutdown.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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A3918 Low Voltage DC Motor Driver Features and Benefits ▪ 2.5 to 9 V operation ▪ Internal PWM current control ▪ Synchronous rectification for reduced power dissipation ▪ Peak current output flag ▪ Undervoltage lockout ▪ Low RDS(on) outputs ▪ Small package ▪ Brake mode for DC motor ▪ Sleep function ▪ Crossover-current protection ▪ Thermal shutdown Description Designed for pulse width modulated (PWM) control of a low voltage DC motor, the A3918 is capable of output currents up to 1.5 A and operating voltages from 2.5 to 9 V. The A3918 has an internal fixed off-time PWM timer that sets a peak current based on the selection of a current sense resistor.