DRV8825 Stepper Motor Driver with Aluminum Heat Sink

Description

This breakout board for Texas Instruments' DRV8825 micro stepping bipolar stepper motor driver includes adjustable current limiting, over-current and over-temperature protection, and six micro step resolutions (down to 1/32-step). It can deliver up to 1.5 A per phase without a heat sink or forced airflow and operates from 8.2 V to 45 V. (rated for up to 2.2 A per coil with sufficient additional cooling) The pinout and interface of the driver are nearly identical to those of our A4988 stepper motor driver carriers, allowing it to be used as a higher-performance drop-in replacement for those boards in many applications. 

Features

• Microstep resolutions: full, 1/2, 1/4, 1/8, 1/16, and 1/32.
• Simple step and direction control interface
• Six different step resolutions: full-step, half-step, 1/4-step, 1/8-step, 1/16-step, and 1/32-step
• Adjustable current control lets you set the maximum current output with a potentiometer. Hence lets you use voltages above your stepper motor’s rated voltage to achieve higher step rates
• Intelligent chopping control that automatically selects the correct current decay mode (fast decay or slow decay)
• 45 V maximum supply voltage
• Built-in regulator (no external logic voltage supply needed)
• Can interface directly with 3.3 V and 5 V systems
• Over-temperature thermal shutdown, over-current shutdown, and under-voltage lockout
• Short-to-ground and shorted-load protection
• 4-layer, 2 oz copper PCB for improved heat dissipation
• Exposed solderable ground pad below the driver IC on the bottom of the PCB

Specification