LB11972V - 3-Phase Sensorless Motor Driver
Pin No.
24 1 2 23 Pin Symbol UOUT VOUT W OUT RF Minimum potential of drum motor driver output transistor.
Constant current control is made by detecting this voltage.
The current limiter operates by detecting this potential, too.
Pin Voltage Equivalent Circuit Diagram Pin Description Drum motor drive
Ordering number : ENN8797 Monolithic Digital IC LB11972V Overview 3-Phase Sensorless Motor Driver for Fan Motor Driver for Refrigerator The LB11972V is a 3-phase full-wave current linear sensorless motor driver.
It is optimal for refrigerator fan motor drive.
Functions Three-phase sensor-less motor driver Current linear drive Built-in current limiting circuit Built-in output stage saturation preventive circuit With coil counter-electromotive
