驱动4-1/2数字仪表显示与MAX6958/59 LED驱动器

摘要：本应用笔记提供关于如何连接MAX6958和MAX6959LED显示驱动器，5位LED显示面板仪表应用需要小数点的显示范围-19999到19999的详细信息。

Maxim>AppNotes>AUTOMOTIVEDISPLAYDRIVERSKeywords:MAX6958,MAX6959,LEDdrivers,stickdisplays,panelmeters,ammeters,voltmeters,leddisplayMar18,2003driversAPPLICATIONNOTE1936Driving4-1/2DigitMeterDisplayswiththeMAX6958/59LEDDriversAbstract:ThisapplicationnoteprovidesdetailsonhowtoconnecttheMAX6958andMAX6959LEDdisplaydriversto5-digitLEDdisplaysforpanelmeterapplicationsrequiringthedisplayrange-19999to19999withdecimalpoints.TheMAX6958andMAX6959are4-digit,9-segmentLEDdriverswhichuseareducedpincountmultiplexingschemetodrive36segmentsusingonly10drivepins(Table1).Thisapplicationnotediscussesatechniquetodrivefoursegmentsofa5th,additionaldigit.A5thdigitisrequiredformeterdi