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A4985 Datasheet - Allegro

A4985 - DMOS Microstepping Driver

The A4985 is a complete microstepping motor driver with built-in translator for easy operation.

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

Step modes are selectable by MSx logic inputs.

It has an output drive capacity of up to 35 V and ±1 A.

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A4985 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

A4985-Allegro.pdf

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Datasheet Details

Part number:

A4985

Manufacturer:

Allegro

File Size:

1.44 MB

Description:

Dmos microstepping driver.

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