The Toshiba sensorless PWM predriver is for 3-phase 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. This driver is used with six external MOSFETs inverter to drive sensorless brushless motors of which output range is wide.
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 output (PHBF pin) CW/CCW control (CWCCW pin) Brake input pin (BRAKE pin) Rotation speed output (FG pin) Abnormality detection output (ALERT pin) Thermal shutdown (TSD) Under voltage lockout (UVLO) Charge pump low voltage detection (CPVSD) Output current limit (OCP) Over current detection (ISD) Lock protection Small QFN36 package
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