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A3966 - Dual Full-Bridge PWM Motor Driver

Description

The A3966 is designed to drive both windings of a two-phase bipolar stepper motor.

The device includes two full-bridges capable of continuous output currents of ±650 mA and operating voltages to 30 V.

Features

  • ±650 mA continuous output current.
  • 30 V output voltage rating.
  • Internal fixed-frequency PWM current control.
  • Satlington® sink drivers.
  • User-selectable blanking window.
  • Internal ground-clamp and flyback diodes.
  • Internal thermal-shutdown circuitry.
  • Crossover-current protection and UVLO protection.

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Datasheet preview – A3966

Datasheet Details

Part number A3966
Manufacturer Allegro MicroSystems
File Size 713.12 KB
Description Dual Full-Bridge PWM Motor Driver
Datasheet download datasheet A3966 Datasheet
Additional preview pages of the A3966 datasheet.

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Full PDF Text Transcription

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A3966 Dual Full-Bridge PWM Motor Driver FEATURES AND BENEFITS ▪ ±650 mA continuous output current ▪ 30 V output voltage rating ▪ Internal fixed-frequency PWM current control ▪ Satlington® sink drivers ▪ User-selectable blanking window ▪ Internal ground-clamp and flyback diodes ▪ Internal thermal-shutdown circuitry ▪ Crossover-current protection and UVLO protection PACKAGE: 16-pin SOICW (suffix LB) Not to scale DESCRIPTION The A3966 is designed to drive both windings of a two-phase bipolar stepper motor. The device includes two full-bridges capable of continuous output currents of ±650 mA and operating voltages to 30 V. Motor winding current can be controlled by the internal fixed-frequency, pulse-width modulated (PWM), current-control circuitry.
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