The PCX2339F64473 is a semiconductor device manufactured by World Products. It is a three-phase motor controller, designed to drive brushless DC motors up to 64A. It has adjustable speed regulation, pulse frequency modulation output, external signal line for speed control, overtemperature protection and power failure recognition. It is designed with a built-in Hall sensor system and current amplifiers that make it easy to work with a wide range of brushless DC motors. The controller is suitable for a variety of applications, including fans, pumps, conveyors and medical treatments.