DMOS Microstepping Driver With Translator

The A3987 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 sixteenth step modes, with output drive capability of 50 V and 1.5 A. The A3987 includes a fixed off-time current Regulator which has the ability to operate in slow or mixed decay modes.
The translator is the key to the easy implementation of the A3987. Simply inputting one pulse on the step input drives the motor to take one microstep. There are no phase sequence tables, high frequency control lines, or complex Interfaces to program. The A3987 Interface is an ideal fit for applications where a complex Microprocessor is unavailable or over-burdened.
By Allegro MicroSystems, Inc.
A3987 's PackagesA3987 's pdf datasheet

A3987 Pinout, Pinouts
A3987 pinout,Pin out
This is one package pinout of A3987,If you need more pinouts please download A3987's pdf datasheet.

A3987 Application circuits
A3987 circuits
This is one application circuit of A3987,If you need more circuits,please download A3987's pdf datasheet.

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