MP6500 and MP6600 Stepper Motor Drivers

By Monolithic Power Systems 222

MP6500 and MP6600 Stepper Motor Drivers

The MP6500 and MP6600 from MPS are stepper motor drivers with a built-in translator and current regulation. Current sensing is internal and requires no external sense resistors. High integration and a small package size make these motor drivers a space-saving and cost-effective solution for bipolar stepper motor drives. The MP6500 and MP6600 operate from a supply voltage of up to 35 V and can deliver motor currents of 1.5 A (MP6600) and up to 2.5 A (MP6500) depending on PCB design and thermal conditions. These devices can operate a bipolar stepper motor in full-, half-, quarter-, or eighth-step modes. Internal safety features include over-current protection (OCP), input overvoltage protection (OVP), under-voltage lockout (UVLO), and thermal shutdown. The MP6500 is available in QFN-24 (5 mm x 5 mm) and thermally enhanced TSSOP-28 EP packages, while the MP6600 is available in a QFN-24 (4 mm x 4 mm) package.

  • Wide 4.5 V to 35 V input voltage range
  • Internal current sensing and regulation
  • No control power supply required
  • Two internal full-bridge drivers
  • 3.3 V and 5 V compatible logic supply
  • Low on resistance (HS: 195 mΩ, LS: 170 mΩ)
  • 1.5 A and 2.5 A output current
  • Step modes from full-step to eighth-step
  • Input over-voltage protection (OVP)
  • Over-current protection (OVP)
  • Automatic current decay
  • Simple logic interface
  • Fault indication output
  • Thermal shutdown and under-voltage lockout (UVLO) protection
  • MP6500 available in QFN-24 (5 mm x 5 mm) and TSSOP-28 packages
  • MP6600 available in QFN-24 (4 mm x 4 mm)
  • Bipolar stepper motors
  • Printers

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