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A3957 Datasheet FULL-BRIDGE PWM MICROSTEPPING MOTOR DRIVER

Manufacturer: Allegro MicroSystems

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Overview

Data Sheet 29319.44B 3957 FULL-BRIDGE PWM MICROSTEPPING MOTOR DRIVER The A3957SLB is designed for driving one winding of a bipolar stepper NO 1 NC CONNECT NC 24 NO CONNECT motor in a microstepping.

Key Features

  • ±1.5 A Continuous Output Current.
  • 50 V Output Voltage Rating.
  • Internal PWM Current Control.
  • 4-Bit Non-Linear DAC for 16-Bit Microstepping.
  • Satlington® Sink Drivers.
  • Fast, Mixed Fast/Slow, and Slow Current-Decay Modes.
  • Internal Transient-Suppression Diodes.
  • Internal Thermal-Shutdown Circuitry.
  • Crossover-Current and UVLO Protection Under any set of conditions, do not exceed the specified current rating or a junction temperature of 150°C. † Per SEMI.

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