L6699D by ST Design and production,in HongKong RichShine Technology Co., Limited Spot sales,And can pass HongKong RichShine Technology Co., Limited Purchasing。L6699D Price reference $ 4.300000。L6699D - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information L6699D Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial