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TC78B009FTG - Sensorless PWM predriver

General Description

Pin No.

Key Features

  • Sensorless PWM drive.
  • Capable to drive Delta or Wye configured motors.
  • Operating voltage: 5.5 to 27V (absolute maximum rating: 30V).
  • Predriver for high side and low side N-ch MOSFETs drive.
  • 8 selectable levels of gate drive current.
  • Built-in closed loop speed control with adjustable speed curve.
  • Motor speed control by analog voltage, PWM duty cycle, or I2C.
  • Serial interface (I2C) for various settings.
  • Standby mode (by STBY pin).
  • Current monitor.

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Full PDF Text Transcription (Reference)

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CDMOS Linear Integrated Circuit Silicon Monolithic TC78B009FTG TC78B009FTG Sensorless PWM predriver for 3-phase brushless motor 1. Outline The TC78B009FTG is a 3-phase PWM chopper predriver for sensorless brushless motor. Motor speed can be controlled by selecting among the PWM duty cycle, analog voltage, and I2C. Non-volatile memory (NVM) is implemented and it can set according to the motors and directions for use. It also realizes closed loop speed control function without an external microcomputer. TC78B009FTG is used with six external MOSFETs inverter to drive sensorless brushless motors of which output range is wide. P-WQFN36-0505-0.50-001 Weight: 0.06 g (typ.) 2. Applications Fan, Pump, Portable Vacuum motors 3.