|【 General Description 】|
|The WT7062 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), WT7062 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 WT7062 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 MSOP-10 & 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.|
|●||MSOP-10 & DFN-10 package.|
|●||No external tuning required.|