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MP6500 Stepper Motor Driver Carrier, Digital Current Control

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  • Pololu
  • EXP-R25-914
  • 2968
  • 14
  • US
  • 85423190
  • 0.002
This breakout board for the MPS MP6500 microstepping bipolar stepper motor driver is Pololu’s... more

This breakout board for the MPS MP6500 microstepping bipolar stepper motor driver is Pololu’s latest stepper motor driver. The module has a pinout and interface that are very similar to that of Pololu's popular A4988 carriers, so it can be used as a drop-in replacement for those boards in many applications. The MP6500 offers up to 1/8-step microstepping, operates from 4.5 V to 35 V, and can deliver up to approximately 1.8 A per phase continuously without a heat sink or forced air flow. This version of the board allows for dynamic current limit control through a pair of digital inputs, and the board ships with 0.1″ male header pins included but not soldered in.


  • Simple step and direction control interface
  • Four different step resolutions: full-step, half-step, 1/4-step, and 1/8-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
  • Digital Current Control — this carrier version allows a microcontroller to dynamically adjust the current limit up to around 2 A
  • Internal current sensing allows the driver to automatically adjust the decay mode as necessary to provide the smoothest current waveform
  • 4.5 V to 35 V supply voltage range
  • Can deliver 1.8 A per phase continuously without additional cooling
  • 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, short circuit protection, and under-voltage lockout
  • 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 Pololu's A4988 stepper motor driver carriers in most respects


  • Minimum operating voltage: 4.5 V
  • Maximum operating voltage: 35 V
  • Continuous current per phase: 1.8 A
  • Maximum current per phase: 2 A
  • Minimum logic voltage: 2.1 V
  • Maximum logic voltage: 6 V
  • Microstep resolutions: full, 1/2, 1/4, and 1/8
  • Current limit control: digital
  • Reverse voltage protection?: N
  • Header pins soldered: N