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A4915 - 3-Phase MOSFET Driver

General Description

The A4915 is designed for pulse width modulated (PWM) current control of 3-phase brushless DC motors.

The A4915 is capable of high current gate drive for 6 all N-channel power MOSFETs.

An internal charge pump ensures gate drive down to 7 V supply and provides limited gate drive down to 5 V.

Key Features

  • 5 to 50 V supply voltage.
  • Latched TSD with fault output.
  • Drives six N-channel high current MOSFETs.
  • Internally controlled synchronous rectification.
  • Speed voltage input enables internal PWM duty cycle control of full bridge.
  • Center aligned PWM.
  • Internal UVLO and crossover current protection.
  • Hall switch inputs.
  • Adjustable dead time protection.
  • Low power sleep mode for battery-powered.

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Other Datasheets by Allegro MicroSystems

Part Number Description
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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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A4915 3-Phase MOSFET Driver FEATURES AND BENEFITS • 5 to 50 V supply voltage • Latched TSD with fault output • Drives six N-channel high current MOSFETs • Internally controlled synchronous rectification • Speed voltage input enables internal PWM duty cycle control of full bridge • Center aligned PWM • Internal UVLO and crossover current protection • Hall switch inputs • Adjustable dead time protection • Low power sleep mode for battery-powered applications PACKAGES: 28-pin TSSOP with exposed thermal pad (LP package) 28-contact QFN 5 mm × 5 mm × 0.90 mm (ET package) Not to scale DESCRIPTION The A4915 is designed for pulse width modulated (PWM) current control of 3-phase brushless DC motors. The A4915 is capable of high current gate drive for 6 all N-channel power MOSFETs.