LM4871LD by Texas Instruments(TI) Design and production,in Shenzhen Yirenxin Technology Co., Ltd. Spot sales,And can pass Shenzhen Yirenxin Technology Co., Ltd. Purchasing。LM4871LD Price reference $ 0.765600。LM4871LD - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information LM4871LD Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial