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A4987 - DMOS Dual Full-Bridge PWM Motor Driver

General Description

The A4987 is a dual DMOS full-bridge stepper motor driver with parallel input communication and overcurrent protection.

Each full-bridge output is rated up to 35 V and ±1 A.

Key Features

  • Low RDS(ON) outputs.
  • Internal mixed current decay mode.
  • Synchronous rectification for low power dissipation.
  • Internal UVLO.
  • Crossover-current protection.
  • 3.3 and 5 V compatible logic supply.
  • Thin profile QFN and TSSOP packages.
  • Thermal shutdown circuitry.
  • Short-to-ground protection.
  • Shorted load protection.
  • Low current Sleep mode, < 10 µA.

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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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A4987 DMOS Dual Full-Bridge PWM Motor Driver with Overcurrent Protection FEATURES AND BENEFITS ▪ Low RDS(ON) outputs ▪ Internal mixed current decay mode ▪ Synchronous rectification for low power dissipation ▪ Internal UVLO ▪ Crossover-current protection ▪ 3.3 and 5 V compatible logic supply ▪ Thin profile QFN and TSSOP packages ▪ Thermal shutdown circuitry ▪ Short-to-ground protection ▪ Shorted load protection ▪ Low current Sleep mode, < 10 µA PACKAGES: 24-contact QFN 4 mm × 4 mm × 0.75 mm (ES package) Approximate footprint 24-pin TSSOP with exposed thermal pad (LP Package) DESCRIPTION The A4987 is a dual DMOS full-bridge stepper motor driver with parallel input communication and overcurrent protection. Each full-bridge output is rated up to 35 V and ±1 A.