MP6550 H-Bridge Motor Driver consists of four N-channel power MOSFETs

MP6550 H-Bridge Motor Driver consists of four N-channel power MOSFETs

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MPS’ H-bridge motor driver consists of four N-channel power MOSFETs and an internal charge pump to generate gate-drive voltages

The MP6550 from Monolithic Power Systems is an H-bridge motor driver consisting of four N-channel power MOSFETs and an internal charge pump to generate gate-drive voltages. The MP6550 is typically used to drive a DC brush motor. According to the logic control, the device operates on a motor power supply voltage from 1.8 V to 22 V, which can supply an output current of up to 2 A. The MP6550 has a PWM input interface, which is compatible with industry-standard devices. Very low standby circuit current can be achieved when the device is disabled. An internal current-sensing circuit provides an output with a voltage proportional to the load current. Cycle-by-cycle current regulation and limiting is also provided. These features do not require the use of a low-value shunt resistor. There are internal shutdown functions for overcurrent protection, short-circuit protection, under-voltage lockout, and overtemperature protection. The MP6550 requires a minimal number of readily available, standard external components and is available in a QFN-12 (2 mm x 2 mm) package.

Features

  • Wide 1.8 V to 22 V operating input range
  • 2 A continuous driver current
  • MOSFET on-resistance (HS + LS) 240 mΩ
  • Cycle-by-cycle current regulation/limit
  • Built-in 3.3 V reference output
  • PWM input interface, compatible with industry-standard devices, up to 100 kHz
  • Low standby circuit current
  • Thermal shutdown
  • Internal charge pump
  • Cycle-by-cycle overcurrent protection
  • Short-circuit protection
  • Available in a QFN-12 (2 mm x 2 mm) package

more information: https://www.monolithicpower.com/en/mp6550.html

Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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