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A3981

Part Number	A3981
Manufacturer	Allegro
Description	Automotive Programmable Stepper Driver
Published	Dec 6, 2023
Detailed Description	A3981 Automotive Programmable Stepper Driver FEATURES AND BENEFITS • Peak motor current up to ±1.4 A, 28 V • Low RDS(on...
Datasheet	A3981 PDF File

Overview

A3981 Automotive Programmable Stepper Driver FEATURES AND BENEFITS • Peak motor current up to ±1.
4 A, 28 V • Low RDS(on) outputs, 0.
5 Ω source and sink, typical • Automatic current decay mode detection/selection • Mixed, Fast, and Slow current decay modes • Synchronous rectification for low power dissipation • Internal OVLO, UVLO, and Thermal Shutdown circuitry • Crossover-current protection • Short-circuit and open-load diagnostics • Hot and cold thermal warning • Stall detect features • SPI-compatible or simple Step and Direction motion control • Highly configurable via SPI-compatible serial interface APPLICATIONS • Automotive stepper motors • Engine management • Headlamp positioning PACK...

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