TPD4131K is a high-voltage PWM DC brushless motor driver. It is an integrated circuit with a high-side drive circuit, a low-side drive circuit, a PWM circuit, a three-phase distribution circuit, a level shift high-side driver, overcurrent protection, over-temperature protection, undervoltage protection, and FRD. It is driven by Hall sensor/Hall IC and microcontroller to directly drive DC brushless motor to achieve variable speed.