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A3977 - Microstepping DMOS Driver

A3977 Description

A3977 Microstepping DMOS Driver with Translator .
The A3977 is a complete microstepping motor driver with built-in translator.

A3977 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
* Mixed, fast, and slow current decay modes
* Home output
* Sync

A3977 Applications

* where a complex microprocessor is unavailable or overburdened. Internal synchronous-rectification control circuitry is provided to improve power dissipation during PWM operation. Internal circuit protection includes thermal shutdown with hysteresis, undervoltage lockout (UVLO), and crossover-current

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Datasheet Details

Part number
A3977
Manufacturer
Allegro
File Size
769.97 KB
Datasheet
A3977-Allegro.pdf
Description
Microstepping DMOS Driver

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Microstepping DMOS Driver Allegro
Allegro A3977-like datasheet