UC3845N by TI Design and production,in Shenzhen Yirenxin Technology Co., Ltd. Spot sales,And can pass Shenzhen Yirenxin Technology Co., Ltd. Purchasing。UC3845N Price reference $ 0。UC3845N - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information UC3845N Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial