General Description
The APX9359A provides all the circuitry for sensor-less speed control of three-phase brushless DC motor. The Sine-wave Driver method will be better sound quality. The controller functions include start-up circuit, back-EMF commutation control, Pulse Width Modulation (PWM) speed control, voltage speed control, lock protection, and thermal shutdown circuit. The APX9359A is suitable for both game machine and CPU cooler that need silent drivers. It is available in VTDFN2x2-10 package.

FEATUREs
• PWM Sine-Wave Driver
• Three-Phase Sensor-Less Drive
• Adjustable Forced Commutation Frequency (for
   Start-up)
• Built-In External PWM or VSP Speed Control
• Built-In Quick Start Function
• FG, 1/2FG or RD Output
• Power Saving Function
• Built-In Lock Protection and Auto Restart Function
• Built-in Thermal Protection Circuit
• Lead Free and Green Device Available (RoHS
   Compliant)

APPLICATIONs
• Motor Driver For Silent Fans
• Variable Speed Control Fans