ToshibaTC78B009FTG,ELControl del motor de movimiento

The TC78B009FTG is a 3-phase PWM chopper Brushless motor controller + predriver for sensorless motors. Motor speed can be controlled by selecting among the PWM duty cycle, analog voltage, or I2C. Non-volatile memory (NVM) is implemented and it can set according to the motors and directions for use. It integrates current monitoring function without external opamp and 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.

Features

• Sensorless PWM drive
• Capable to drive Delta or Wye configured motors
• Trapezoidal drive current waveform
• 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 for slew rate control
• 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
• Current monitor output (PHBF pin)
• Integrated current monitoring function
• Full Protections with Alert Output – Thermal shutdown, Over current protection, Charge pump low voltage detection, Under Voltage Lockout, Lock protection
• Small QFN36 5mmx5mm package

 

Applications

• Fan motors
• Pump motors
• Portable vacuum motors