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A3935 Datasheet 3-Phase Power MOSFET Controller

Manufacturer: Allegro MicroSystems

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General Description

TheA3935 is designed specifically for automotive applications that require high-power motors.

Each provides six high-current gate drive outputs capable of driving a wide range of N-channel power MOSFETs.

A requirement of automotive systems is steady operation over a varying battery input range.

Overview

A3935 3-Phase Power MOSFET Controller for Automotive Applications.

Key Features

  • Drives wide range of N-channel MOSFETs in 3-phase bridges.
  • PFM boost converter for use with low-voltage battery supplies.
  • Internal LDO regulator for gate-driver supply.
  • Bootstrap circuits for high-side gate drivers.
  • Current monitor output.
  • Adjustable battery overvoltage detection.
  • Diagnostic outputs.
  • Motor lead short-to-battery, short-to-ground, and bridge- open protection.
  • Undervoltage protection.
  • 40°C to 150°C TJ operation.
  • Therm.

More Datasheets from Allegro MicroSystems

Part Number Description
A3901 Dual Full Bridge Low Voltage Motor Driver
A3907 Low Voltage Voice Coil Motor Driver
A3909 Dual Full Bridge Motor Driver
A3921 Automotive Full Bridge MOSFET Driver
A3922 Automotive Full-Bridge MOSFET Driver
A3924 Automotive Full-Bridge MOSFET Driver
A3940 Full-Bridge Power MOSFET Controller
A3941 Automotive Full Bridge MOSFET Driver
A3942 Quad High-Side Gate Driver
A3944 Automotive Low-Side FET Pre-Driver