DRV8825 Stepper Motor Driver Module with Aluminum Heat Sink

Overview 

The DRV8825 Stepper Motor Driver is a breakout board for TI’s DRV8825 microstepping bipolar stepper motor driver. It features an adjustable current limit, over-current and over-temperature protection, and six microstep resolutions (down to 1/32-step). It operates from 8.2V to 45V and can deliver up to approximately 1.5A per phase without a heat sink (rated up to 2.2A with sufficient volume cooling).

Key Features 

• Ultra-Smooth Movement: 1/32 microstepping allows for much finer control and less vibration compared to the A4988’s 1/16 stepping.

• Higher Voltage Support: Handles up to 45V, allowing for higher torque at high speeds.

• 4-Layer PCB: Designed with a 2-ounce copper 4-layer PCB for improved heat dissipation.

• Simple Interface: Only 2 pins (STEP and DIR) are required to control the motor.

• Built-in Protection: Includes under-voltage lockout, over-current, and thermal shutdown.

Technical Specifications 

Feature	Specification
Driver IC	TI DRV8825
Operating Voltage	8.2V to 45V DC
Max Current	2.5A (Peak) / 1.5A (Continuous)
Microstep Resolutions	Full, 1/2, 1/4, 1/8, 1/16, and 1/32
Logic Voltage	3.3V and 5V compatible
Dimensions	15mm x 20mm (Standard Pololu form factor)
PCB Color	Purple (Standard High-Current version)