A4985 Datasheet - Allegro

A4985, DMOS Microstepping Driver

A4985 DMOS Microstepping Driver with Translator and Overcurrent Protection .
The A4985 is a complete microstepping motor driver with built-in translator for easy operation.

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A4985-Allegro.pdf

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Datasheet Details

Part number:

A4985

Manufacturer:

Allegro

File Size:

1.44 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 ▪ Thin profile QFN and TSSOP packages ▪ Thermal shu

Applications

* where a complex microprocessor is unavailable or is overburdened. During stepping operation, the chopping control in the A4985 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

A4985 Distributors

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A4985 DMOS Microstepping Driver Allegro

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