DRV8834 Low-Voltage Stepper Motor Driver Carrier DRV8834 low-voltage stepper motor driver carrier with dimensions. Overview This product is a carrier board or breakout board for TIs DRV8834 low-voltage stepper motor driver we therefore recommend careful reading of the DRV8834 datasheet (2MB pdf) before using this product. This stepper motor driver lets you control one bipolar stepper motor at up to 2 A output current per coil (see the Power Dissipation Considerations section below for more information). Here are some of the drivers key 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 motors rated voltage to achieve higher step rates Intelligent chopping control that automatically selects the correct current decay mode (fast decay or slow decay) 2.5-10.8 V supply voltage range 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, short-to-supply, 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) This product ships with all surface-mount componentsincluding the DRV8834 driver ICinstalled as shown in the product picture. For alternative, pin-compatible stepper motor drivers that work with higher motor supply voltages, consider our DRV8825 carrier, DRV8824 carrier, and A4988 carrier (also available in a Black Edition and a version with voltage regulators).Some unipolar stepper motors (e.g. those with six or eight leads) can be controlled by this driver as bipolar stepper motors. For more information, please see the frequently asked questions. Unipolar motors with five leads cannot be used with this driver. Included hardware The DRV8834 stepper motor driver carrier ships with one 116-pin breakaway 0.1 male header. The headers can be soldered in for use with solderless breadboards or 0.1 female connectors. You can also solder your motor leads and other connections directly to the board. Using the driver Minimal wiring diagram for connecting a microcontroller to a DRV8834 stepper motor driver carrier (1/4- step mode). Power connections The driver requires a motor supply voltage of 2.5-10.8 V to be connected across VMOT and GND. This supply should have appropriate decoupling capacitors close to the board, and it should be capable of delivering the expected stepper motor current.