A4988 Datasheet - Allegro

A4988, DMOS Microstepping Driver

A4988 DMOS Microstepping Driver with Translator and Overcurrent Protection .
The A4988 is a complete microstepping motor driver with built-in translator for easy operation.

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Datasheet Details

Part number:

A4988

Manufacturer:

Allegro

File Size:

1.18 MB

Description:

DMOS Microstepping Driver

Features

* ▪ Low Rds(on) outputs ▪ Automatic current decay mode detection/selection ▪ Mixed and slow current decay modes ▪ Synchronous rectification for low power dissipation ▪ Internal UVLO ▪ Crossover-current protection ▪ 3.3 and 5 V compatible logic supply ▪ Thermal shutdown circuitry ▪ Short-to-ground prot

Applications

* where a complex microprocessor is unavailable or is overburdened. During stepping operation, the chopping control in the A4988 automatically selects the current decay mode: slow or mixed. In mixed decay mode, the device is set initially to a fast decay for a proportion of the fixed off-time, then to

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A4988 DMOS Microstepping Driver Allegro

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