The DRV8825 stepper motor driver carrier is a breakout board for TI’s DRV8825 microstepping bipolar stepper motor driver. The module has a pinout and interface that are nearly identical to those of our A4988 stepper motor driver carriers, so it can be used as a higher-performance drop-in replacement for those boards in many applications. The DRV8825 features adjustable current limiting, overcurrent and overtemperature protection, and six microstep resolutions (down to 1/32-step). It operates from 8.2 – 45 V and can deliver up to approximately 1.5 A per phase without a heat sink or forced air flow (rated for up to 2.2 A per coil with sufficient additional cooling).
- 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).
- 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.
- Module size, pinout, and interface match those of our A4988 stepper motor driver carriers in most respects (see the bottom of this page for more information).
- Minimum voltage: 8.2 VDC.
- Maximum voltage: 45VDC.
- Continuous Current per phase: 1.5 Amp.
- Maximum phase current: 2.2Amp.
- Minimum voltage logic: 2.5VDC.
- Logic High Voltage: 5.25 VDC.
- Microstep resolutions: 1, 1/2, 1/4, 1/8, 1/16 and 1/32.
- Reverse voltage protection: None.