MP6540H/MP6540HA are three-phase brushless DC motor drivers

MP6540H/MP6540HA are three-phase brushless DC motor drivers

MPS’ 50 V, 5 A and 6 A, three-phase power stage drivers offer PWM and enable inputs

The MP6540H and MP6540HA from Monolithic Power Systems are three-phase brushless DC motor drivers. These devices integrate three half-bridges consisting of six N-channel power MOSFETs, pre-drivers, gate drive power supplies, and current-sense amplifiers. The MP6540H has enable (EN) and PWM inputs for each half-bridge, while the MP6540HA has separate high-side (HS) and low-side (LS) inputs, otherwise they are identical. The MP6540H can deliver up to 6 A of peak current and 5 A of continuous output current, based on thermal and PCB conditions. The MP6540H uses an internal charge pump to generate the gate drive supply voltage for the high-side MOSFETs, and a trickle charge circuit that maintains sufficient gate drive voltage to operate at 100% duty cycle. Internal safety features include thermal shutdown, undervoltage lockout (UVLO), and overcurrent protection (OCP). The device is available in a QFN-26 (5 mm x 5 mm) package.

Features:

  • 5.5 V to 50 V operating supply voltage
  • Three integrated half-bridge drivers
  • Maximum 5 A output current, 6 A peak current
  • MOSFET ON resistance: HS + LS 45 mΩ
  • MP6540H: PWM and EN inputs; MP6540HA: HS and LS inputs
  • Internal charge pump supports 100% duty cycle operation
  • Automatic synchronous rectification
  • UVLO and thermal shutdown protection
  • OCP
  • Integrated bidirectional current-sense amplifiers
  • Available in a QFN-26 (5 mm x 5 mm) package

more information: https://www.monolithicpower.com/en/mp6540h.html

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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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