Datasheet4U Logo Datasheet4U.com

A89103 Datasheet Automotive Three-Phase and Battery Isolator MOSFET Driver

Manufacturer: Allegro MicroSystems

📥 Download Datasheet

General Description

The A89103 is an N-channel power MOSFET driver capable of controlling five MOSFETs to provide motor-phase isolation and supply isolation in three-phase BLDC applications.

Three floating gate-drive outputs maintain phase-isolator power MOSFETs in the on state, over the full supply range, with highphase voltage and high dv/dt on the motor-phase connection for 12 V and 48 V systems.

Two additional floating gate drivers are provided to isolate the battery supply voltage during reversebattery or short-circuit conditions.

Overview

A89103 Automotive Three-Phase and Battery Isolator MOSFET Driver.

Key Features

  • Five floating N-channel MOSFET drives.
  • Maintains VGS with 100 kΩ gate-source resistors.
  • Integrated charge pump controller.
  • 4.5 to 85 V supply voltage operating range.
  • Supports source-to-source and drain-to-drain battery MOSFET isolation.
  • VCP and VGS undervoltage protection.
  • 150°C ambient (165°C junction) continuous.
  • Fully integrated diagnostics for safe motor phase and battery disconnect.
  • Extensive programmable dia.

More Datasheets from Allegro MicroSystems

Part Number Description
A89301 50V Ultra Low Noise FOC Motor Controller
A89303 Three-Phase Sensorless Pump Driver
A89304 Sensorless BLDC Fan Driver
A89306 50V Ultra-Low Noise FOC Motor Controller
A89307 Automotive FOC BLDC Motor Controller
A89331 Three-Phase Sensorless Fan Driver
A89332 Three-Phase Sensorless Fan Controller
A89332-1 Three-Phase Sensorless Fan Controller
A89332-3 Three-Phase Sensorless Fan Controller
A89500 100V Half-Bridge MOSFET Driver