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A4955 - Full-Bridge PWM Gate Driver

General Description

Designed for pulse-width-modulated (PWM) control of DC motors, the A4955 is capable of 50 V operation and provides gate drive for an all N-channel external MOSFET bridge.

Key Features

  • Standard IN1/IN2 control logic.
  • Overcurrent indication.
  • Adjustable off-time and blank-time.
  • Adjustable current limit.
  • Adjustable gate drive.
  • Synchronous rectification.
  • Internal UVLO.
  • Crossover-current protection.
  • MOSFET VDS protection.
  • Voltage output proportional to load current.

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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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A4955 Full-Bridge PWM Gate Driver FEATURES AND BENEFITS • Standard IN1/IN2 control logic • Overcurrent indication • Adjustable off-time and blank-time • Adjustable current limit • Adjustable gate drive • Synchronous rectification • Internal UVLO • Crossover-current protection • MOSFET VDS protection • Voltage output proportional to load current PACKAGES: 20-Pin QFN (suffix “ES”) with Exposed Thermal Pad 20-Pin eTSSOP (suffix “LP”) with Exposed Thermal Pad DESCRIPTION Designed for pulse-width-modulated (PWM) control of DC motors, the A4955 is capable of 50 V operation and provides gate drive for an all N-channel external MOSFET bridge. Input terminals are provided for use in controlling the speed and direction of a DC motor with externally applied PWM control signals.