L6920DCTR by STMicroelectronics Design and production,in TanJiayuan Electronics Spot sales,And can pass TanJiayuan Electronics Purchasing。L6920DCTR Price reference ¥ 10.280064。L6920DCTR - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information L6920DCTR Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial