A3973 - Dual DMOS Full-Bridge Microstepping PWM Motor Driver

Allegro MicroSystems

The A3973 by Allegro MicroSystems is a Dual DMOS Full-Bridge Microstepping PWM Motor Driver. Below is the official datasheet preview.

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A3973 Dual DMOS Full-Bridge Microstepping PWM Motor Driver by Allegro MicroSystems - Datasheet Preview — Official preview page of the **A3973** Dual DMOS Full-Bridge Microstepping PWM Motor Driver datasheet (Allegro MicroSystems).

Datasheet Details

Part number	A3973
Manufacturer	Allegro MicroSystems
File Size	782.44 KB
Description	Dual DMOS Full-Bridge Microstepping PWM Motor Driver
Datasheet	A3973_AllegroMicroSystems.pdf
Additional preview pages of the A3973 datasheet.

A3973 Product details

Description

Designed for pulse-width modulated (PWM) current control of bipolar microstepping stepper motors, the A3973 is capable of continuous output currents to ±1 A and operating voltages to 35 V.

Features

±1 A, 35 V Continuous Output Rating.
Low RDS(on) DMOS Output Drivers.
Optimized Microstepping via 6-Bit Linear DACs.
Programmable Mixed, Fast, and Slow Current Decay Modes.
4 MHz Internal Oscillator for Digital Timing.
Serial-Interface Controls Chip Functions.
Synchronous Rectification for Low Power Dissipation.
Internal UVLO and Thermal Shutdown Circuitry.
Crossover-Current Protection.
Precision 2 V Reference.
Inputs Compatible with 3.3 or.

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Published: Nov 17, 2013 |