DESCRIPTION
DRV8825 micro-stepping 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 8.2 V to 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). The driver has a pinout and interface that are nearly identical to those of A4988 stepper motor driver, so it can be used as a higher-performance drop-in replacement for those boards in many applications.
Micro-step settings:
| MODE0 | MODE1 | MODE2 | Microstep Resolution |
| LOW | LOW | LOW | FULL STEP |
| HIGH | LOW | LOW | HALF STEP |
| LOW | HIGH | LOW | 1/4 STEP |
| HIGH | HIGH | LOW | 1/8 STEP |
| LOW | LOW | HIGH | 1/16 STEP |
| HIGH | LOW | HIGH | 1/32 STEP |
| LOW | HIGH | HIGH | 1/32 STEP |
| HIGH | HIGH | HIGH | 1/32 STEP |
TECHNICAL DETAILS
- 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
- Configured for mixed decay mode
- 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 A4988 stepper motor driver carriers in most respects
SHIPPING LIST
- 1x Stepper Motor Driver DRV8825
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