E-TEA3718DP by STMicroelectronics Design and production,in Shenzhen HYLX Technology Ltd. Spot sales,And can pass Shenzhen HYLX Technology Ltd. Purchasing。E-TEA3718DP Price reference $ 3.450000。E-TEA3718DP - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information E-TEA3718DP Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial