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A3998 - Dual DMOS Full Bridge Motor Driver

General Description

Designed to provide the motor driver and power supply requirements for printers and office automation equipment.

This integrated power IC incorporates two high current, high performance, full bridge outputs, capable of 1.5 A at 50 V.

Key Features

  • 3.3/5 V switching regulator.
  • 1 to 2.5 V configurable linear regulator output.
  • Dual DMOS full bridge: drive two DC motors or a single stepper motor.
  • ±1.5 A, 50 V output rating per bridge.
  • 4-bit microstepping capability.
  • Serial port control.
  • Configurable mixed, fast, and slow current decay.
  • Synchronous rectification for low power dissipation.
  • Internal UVLO and thermal shutdown circuitry.
  • Crossover-current pr.

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A3998 Dual DMOS Full Bridge Motor Driver With Serial Port Control and Dual Regulators Features and Benefits • 3.3/5 V switching regulator • 1 to 2.5 V configurable linear regulator output • Dual DMOS full bridge: drive two DC motors or a single stepper motor • ±1.5 A, 50 V output rating per bridge • 4-bit microstepping capability • Serial port control • Configurable mixed, fast, and slow current decay • Synchronous rectification for low power dissipation • Internal UVLO and thermal shutdown circuitry • Crossover-current protection • OCP protection Package: 32-contact QFN (suffix ET) Approximate footprint Description Designed to provide the motor driver and power supply requirements for printers and office automation equipment.