Reprap Micro-stepping Driver DRV8825 1/32-Micro-Step (Peak 2A) w/ Heatsink

This breakout board for TI’s DRV8825 microstepping bipolar stepper motor driver features adjustable current limiting, over-current and over-temperature protection, and six micro step 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 or forced air flow (rated for up to 2.2A per coil with sufficient additional cooling). It can be used as a higher-performance drop-in replacement for those boards in many applications. This board ships with 0.1" male header pins included but not soldered in.

Features

• 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, which 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)
• Supply voltage can interface directly with 3.3V and 5V systems; 45V maximum
• Built-in regulator (no external logic voltage supply needed)
• 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
• Module size, pinout, and interface match those of our A4988 stepper motor drivers

Specifications

• Operating voltage: 8.2V - 45V DC
• Continuous current per phase: 1.5 A2
• Maximum current per phase: 2.2 A3
• Minimum logic voltage: 2.5 V4
• Maximum logic voltage: 5.25 V4
• Microstep resolutions: full, 1/2, 1/4, 1/8, 1/16, and 1/32
• Reverse voltage protection: No

Package Included

• 1 x DRV8825 module
• 1 x Heatsink