A3979 - Microstepping DMOS Driver

Product Overview

Allegro MicroSystems

Datasheet Details

Part number	A3979
Manufacturer	Allegro MicroSystems
File Size	944.86 KB
Description	Microstepping DMOS Driver
Datasheet	A3979 Datasheet
Additional preview pages of the A3979 datasheet.

Product details

Description

The A3979 is a complete microstepping motor driver with built-in translator, designed as a pin-compatible replacement for the successful A3977, with enhanced microstepping (1/16 step) precision.

Features

±2.5 A, 35 V output rating.
Low RDS(On) outputs: 0.28 Ω source, 0.22 Ω sink, typical.
Automatic current decay mode detection/selection.
3.0 to 5.5 V logic supply voltage range.
Slow, Fast or Mixed current decay modes.
Home output.
Synchronous rectification for low power dissipation.
Internal UVLO and thermal shutdown circuitry.
Crossover-current protection.

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Other Datasheets by Allegro MicroSystems

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Published: Jan 31, 2007 |