BQ25504RGTR by Texas Instruments(TI) Design and production,in Shenzhen Yirenxin Technology Co., Ltd. Spot sales,And can pass Shenzhen Yirenxin Technology Co., Ltd. Purchasing。BQ25504RGTR Price reference $ 2.306250。BQ25504RGTR - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information BQ25504RGTR Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial