Automotive Dual Full-Bridge Driver for Stepper and DC Motors

A4990

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The A4990 provides versatile motor control for automotive applications, driving stepper or brush DC motors with full current and offering brake capability.

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Top Features

Packaging

  • Two full bridge power outputs
  • Typical application up to ±800 mA, 28 V
  • Adjustable peak current limit control
  • Minimum overcurrent shutdown at 1.4 A
  • Continuous operation at high ambient temperature
  • Synchronous rectification for low power dissipation
  • Simple parallel interface control
  • Inverted and non-inverted inputs
  • No crossover current
  • Low current consumption in sleep mode
  • Error flag diagnostics
  • Open load diagnostic during on-state for all outputs
  • Outputs protected against overcurrent
  • Overtemperature protection with hysteresis
  • Overvoltage and undervoltage lockout
  • 3.3 V / 5 V compatible inputs with hysteresis
  • Thermally enhanced package (exposed pad)
  • Fully integrated in a compact TSSOP package for space sensitive applications
20-pin TSSOP with exposed thermal pad (suffix LP)

Part Number Specifications and Availability