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AMT49702 Datasheet Dual DMOS Full-Bridge Motor Driver

Manufacturer: Allegro MicroSystems

General Description

Designed for pulse-width-modulated (PWM) control of lowvoltage stepper motors and single and dual DC motors, the AMT49702 is capable of output currents up to 1 A per channel and operating voltages from 3.5 to 15 V.

The AMT49702 is an automotive-grade device and is tested across extended temperature and voltage ranges to ensure compliance in automotive or industrial applications.

The AMT49702 has an internal fixed off-time PWM timer that sets a peak current based on the selection of a current sense resistor.

Overview

AMT49702 Dual DMOS Full-Bridge Motor Driver.

Key Features

  • AEC-Q100 Grade 1 qualified.
  • Wide, 3.5 to 15 V input voltage operating range.
  • Dual DMOS full-bridges: drive two DC motors or one stepper motor.
  • Low RDS(ON) outputs.
  • Synchronous rectification for reduced power dissipation.
  • Low-current sleep mode.
  • Overcurrent protection.
  • Internal UVLO and thermal shutdown circuitry.
  • Integrated charge pump.