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RepRap Stepper Motor Driver Module A4988


  • Minimum operating voltage: 8V
  • Maximum operating voltage: 35V
  • Continuous current per phase: 1 Amp
  • Maximum current per phase: 2 Amp
  • Minimum logic voltage: 3V
  • Maximum logic voltage: 5.5V
  • Microstep resolutions: Full, 1/2, 1/4, 1/8, and 1/16

SKU: 263FG

MRP Rs. 264.50
Rs. 230.00 (Incl. Tax)
Rs. 194.92 (+18% GST extra)
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RepRap Stepper Motor Driver Module A4988

A4988 is a complete micro-stepping motor driver with a built-in translator for easy operation. RepRap Stepper Motor Driver Module output drive capacity is up to 35 V and ± 2 A. A4988 includes a fixed off-time current regulator, the regulator in slow or mixed decay modes. A4988 converter is the key to easy implementation. As long as the "step" input inputting one pulse drives the motor one micro-step. There are no phase sequence tables, high-frequency control lines, or complex interfaces to program. A4988 interface is very suitable for a complex microprocessor that is unavailable or is overburdened. In the micro-step operation, the A4988 chopping control inside automatically selects the current decay mode (Slow or Mixed). In mixed decay mode, the device is initially set to a fixed downtime in some fast decay, then the rest of the slow decay downtime. Mixed decay current control scheme results in reduced audible motor noise, increased step accuracy, and reduced power consumption. Internal synchronous rectification control circuitry is provided to improve the pulse-width modulation (PWM) operation power consumption. Internal circuit protection includes thermal shutdown with hysteresis, under-voltage lockout (UVLO), and crossover-current protection. Special power sequencing.


  1. Simple step and direction control interface
  2. Five different step resolutions: full-step, half-step, quarter-step, eighth-step, and sixteenth-step
  3. 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
  4. Intelligent chopping control that automatically selects the correct current decay mode (fast decay or slow decay)
  5. Over-temperature thermal shutdown, under-voltage lockout, and crossover-current protection
  6. Short-to-ground and shorted-load protection
  7. 4-layer, 2 oz copper PCB for improved heat dissipation
  8. Exposed solderable ground pad below the driver IC on the bottom of the PCB

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Based on 3 reviews

very good product

Abhishek - Jun 10, 2023
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