DESCRIPTION
This product is a carrier board or breakout board for the DRV8434A stepper motor driver from Texas Instruments (TI); we therefore recommend careful reading of the DRV8434A datasheet before using this product. This stepper motor driver lets you control one bipolar stepper motor at up to approximately 1.2 A continuous per phase without a heat sink or forced air flow
FEATURES
- 4.5 V to 48 V supply voltage range
- Can deliver up to 1.2 A continuous per phase without additional cooling (2 A peak)
- Built-in regulator (no external logic voltage supply needed)
- Can interface directly with 1.8 V, 3.3 V and 5 V systems
- Simple step and direction control interface
- Eleven different step resolutions: full-step with 100% current, full-step with 70% current, non-circular 1/2-step, 1/2-step, 1/4-step, 1/8-step, 1/16-step, 1/32-step, 1/64-step, 1/128-step, 1/256-step
- Adjustable current control lets you set the maximum current output, which lets you use voltages above your stepper motor’s rated voltage to achieve higher step rates
- Integrated stall detection with three GPIO pins
- Ripple control algorithm (decay mode) that allows tight regulation of current level and increased motor efficiency
- Over-temperature thermal shutdown, over-current protection, open load detection, under-voltage lockout, and charge pump over-voltage protection
- Driver IC integrates spread spectrum clocking of its internal oscillator and charge pump for reduced EMI
- 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
RESOURCES
File downloads
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Schematic diagram for the DRV8434A Stepper Motor Driver Carrier (94k pdf)
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Dimension diagram of the DRV8434x Stepper Motor Driver Carriers (2MB pdf)
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Drill guides (DXF) for the DRV8434x Stepper Motor Driver Carriers (3k zip) These DXF drawings show the locations of all of the holes on the DRV8434x Stepper Motor Driver Carriers.
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3D models (STEP) of the DRV8434x Stepper Motor Driver Carriers (3MB zip) This file contains 3D models (in the step file format) of the DRV8434x Stepper Motor Driver Carriers.
Recommended links
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Texas Instruments DRV8434A stepper motor driver datasheet
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Video: setting the current limit on Pololu stepper motor driver carriers
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Texas Instruments product page for the DRV8434A stepper motor driver Texas Instruments product page for the DRV8434A, where you can find the latest datasheet and additional resources.