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WT7063
The WT7063 is a 3-phase full-wave driver for brushless sensorless DC motors. It features 150° square drive, high torque output, and silent drive. Rotation speed can be adjusted through either power supply modulation or pulse-width-modulation (using the PWM digital input pin).Due to the compact packaging and minimum bill-of-material (power transistors incorporated, no Hall sensor, no external tuning), WT7063 is the best suited for low-cost fan application which is requiring high efficiency and low acoustic noise, such as notebook cooling fan.Frequency generator output is also included (FG). The WT7063 driver includes a lock-up protection mode, which turns off the output current when the motor is under lock condition, and an automatic recovery that enables the fan to release when the lock condition is removed. Thermal-shutdown protection is also included. They are available in a compact thermally-enhanced DFN-10 package.
Features
- Position sensorless BLDC drivers (no Hall sensor required)
- 150° square drive, for high efficiency and low acoustic noise
- Support 2.0V to 5.5V power supplies
- Speed control through by PAM or PWM
- Built-in frequency generator (FG output signal)
- Built-in lockup protection and automatic recovery circuit (external capacitors not necessary)
- Built-in thermal shutdown protection
- DFN-10 package
- No external tuning required
- Position sensorless BLDC drivers (no Hall sensor required)
