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ManualsBrandsDFRobot ManualsStepper Motor ControllersDual Bipolar Stepper Motor Controller for Arduino
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DRV8825
www.ti.com
SLVSA73F –APRIL 2010–REVISED JULY 2014
8 Detailed Description
8.1 Overview
The DRV8825 is an integrated motor driver solution for bipolar stepper motors. The device integrates two NMOS
H-bridges, current sense, regulation circuitry, and a microstepping indexer. The DRV8825 can be powered with a
supply voltage between 8.2 and 45 V and is capable of providing an output current up to 2.5 A full-scale.
A simple STEP/DIR interface allows for easy interfacing to the controller circuit. The internal indexer is able to
execute high-accuracy microstepping without requiring the processor to control the current level.
The current regulation is highly configurable, with three decay modes of operation. Depending on the application
requirements, the user can select fast, slow, and mixed decay.
A low-power sleep mode is included which allows the system to save power when not driving the motor.
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