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A3979 Datasheet - Allegro MicroSystems

A3979 Microstepping DMOS Driver

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. It is designed to operate bipolar stepper motors in full-, half-, quarter-, and sixteenth-step modes, wit.

A3979 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 ▪ Interna

A3979_AllegroMicroSystems.pdf

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Datasheet Details

Part number:

A3979

Manufacturer:

Allegro MicroSystems

File Size:

944.86 KB

Description:

Microstepping dmos driver.

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TAGS

A3979 A3979 Microstepping DMOS Driver Allegro MicroSystems

A3979 Distributor