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A3949 - DMOS Full-Bridge Motor Driver

Description

Designed for PWM (pulse width modulated) control of DC motors, the A3949 is capable of peak output currents to ±2.8 A and operating voltages to 36 V.

Features

  • Single supply operation.
  • Very small outline package.
  • Low RDS(ON) outputs.
  • Sleep function.
  • Internal UVLO.
  • Crossover current protection.
  • Thermal shutdown protection Packages: Package LB, 16-pin SOIC with internally fused pins.

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Datasheet preview – A3949

Datasheet Details

Part number A3949
Manufacturer Allegro MicroSystems
File Size 221.62 KB
Description DMOS Full-Bridge Motor Driver
Datasheet download datasheet A3949 Datasheet
Additional preview pages of the A3949 datasheet.

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Full PDF Text Transcription

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A3949 DMOS Full-Bridge Motor Driver Features and Benefits ▪ Single supply operation ▪ Very small outline package ▪ Low RDS(ON) outputs ▪ Sleep function ▪ Internal UVLO ▪ Crossover current protection ▪ Thermal shutdown protection Packages: Package LB, 16-pin SOIC with internally fused pins Description Designed for PWM (pulse width modulated) control of DC motors, the A3949 is capable of peak output currents to ±2.8 A and operating voltages to 36 V. PHASE and ENABLE input terminals are provided for use in controlling the speed and direction of a DC motor with externally applied PWM control signals. Internal synchronous rectification control circuitry is provided to reduce power dissipation during PWM operation.
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