详细介绍了TI公司新推出的一款智能电源芯片BQ24721,包括它的功能、特点及其在便携式设备电源系统中的应用。研究表明,BQ24721是一款集电源自动选择、电池充电器及安全保护于一体的高集成度、高精度的整合式电源芯片,它为便携式设备的电源系统设计提供了一种有效的解决方案,值得深入研究和推广。 Details of the TI company introduced a new smart power chip BQ24721, including its features, features and applications in portable power devices. The research shows that the BQ24721 is a highly integrated and accurate integrated power chip that integrates automatic power supply selection, battery charger and safety protection. It provides an effective solution for the power system design of portable devices. Worth further research and promotion.