TI公司的专用锂电池电量管理芯片，采用I2C通讯，可电池充量时相关参娄进行读取和设置，适于手持设睾备，5000MAH/4。2V以内的电池测量用；(TI company's dedicated lithium battery power management chip, using I2C communication, can be read and set when the battery is full, suitable for hand-held testicular equipment,