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
