A3977 Microstepping DMOS Driver

Allegro

Description

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

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Datasheet Specifications

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

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

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

A3977 Distributors

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A3977 Microstepping DMOS Driver Allegro

Allegro A3977-like datasheet