APX9365A

APX9365A/B/C Three-Phase Sensor-Less Fan Motor Driver Features General Description Three-Phase Full-Wave Sensor-Less Drive Method Adjustable Forced Commutation Frequency (for Start-up) Built-In External PWM Speed Control Built-In Quick Start Function FG (Rotation Speed Detection) Output (for APX9365A) RD (Lock Detection) Output (for APX9365B) 1/2FG (Rotation Speed Detection) Output (for APX9365C) Soft Switching Circuit (for Noise Reducing) Power Saving Function (PWM Duty Input is 0%) Built-In Lock Protection and Auto Restart Function Thermal Shutdown Circuit Lead Free and Green Devices Available (RoHS Compliant) Applications Motor Driver For Silent Fan Motors The APX9365A/B/C provides all the circuitry for sensorless speed control of three-phase brushless DC motor. The controller functions include start-up circuit, back-EMF commutation control, Pulse Width Modulation (PWM) speed control, lock protection, and thermal shutdown circuit. The...