PT2504 is an integrated three-phase sensorless BLDC motor control chip that can directly drive external PNMOS. It is equipped with advanced protection functions, including a soft-start circuit, lock-rotor protection and output current limiting. PT2504 adopts sine wave current control to reduce electromagnetic noise during operation, making it suitable for high-efficiency fan motor drive applications. In terms of speed control, PT2504 supports open-loop control; besides open-loop control, it can also achieve closed-loop control through parameter configuration. Utilizing BCD manufacturing process, PT2504 only requires a single VDD power supply and a minimal number of external components. Packaged in TSSOP24, this chip delivers excellent energy efficiency, making it an ideal solution for compact, cost-effective and sensorless BLDC motor drive systems. |