12V Three-phase Sensorless BLDC Driver

FUNCTIONAL DESCRIPTION

The MSX71 is an integrated three-phase sensorless BLDC driver with protection such as soft start, TSD, block protection and output current limit. It adapts sin wave current drive for better noise performance at either low or high speed operation. The speed can be controlled with PWM or VSP(DC) command. Single VDD power source and a few component complete the solution to be ideal for low cost, compact, sensorless BLDC application.

MAIN FEATURES

  • Memory Type: OTP
  • GUI aided programming
  • PWM/VSP command
  • Multi-signal output pin (FG/RD)
  • Quick start function
  • Soft start function
  • Leading angel function
  • Soft switching function
  • Over current protection
  • Over/Under voltage protection
  • Operating temperature -40~125˚
  • Lead free and green device available (RoHS Compliant)
MA31

APPLICATIONS

  • Server Cooling Fans
  • Telecom Cooling Fans
  • Variable Speed Control Fans
  • Power System Cooling Fans
  • Inverter Cooling Fans

PACKAGES

  • MSOP-10/DFN-14/SSOP-16