使用DS3882 CCFL控制器驱动两灯共返回配置

要：本应用笔记介绍了在这两个相邻的CCFL灯管都有一个共同的，低压侧灯连接背光LCD应用。这种设计在汽车，工业和航空电子应用。本文介绍如何将DS3882的CCFL控制器可以用来驱动两个CCFL灯管，都有一个共同的返回值。Maxim>AppNotes>AUTOMOTIVEKeywords:CCFL,coldcathodefluorescentlamp,LCD,liquidcrystaldisplay,automotive,infotainment,Jan03,2008navigationAPPLICATIONNOTE4048UseaDS3882CCFLControllertoDriveaTwo-LampCommon-ReturnConfigurationAbstract:ThisapplicationnotedescribesabacklightLCDapplicationinwhichtwoadjacentCCFLlampsshareacommon,low-voltagesidelampconnection.Thisdesignisfoundinautomotive,industrial,andavionicapplications.ThearticledescribeshowaDS3882CCFLcontrollercanbeusedtodrivethetwoCCFLlampsthatshareacommonreturn.IntroductionTheDS3882isatwo-channelcontrollerforcold-cathodefluorescentlamps(CCFL)thatbacklightliquidcrystaldisplays(LCD)inautomotive,industrial,andavionicapplication