转换过程中从闭锁模式打嗝模式短路的电路中的CPU核电源

摘要：本设计笔记显示了如何从闭锁模式转换CPU核心供电，打嗝模式短路时。添加两个廉价的核心控制器的电压比较器，可以使打嗝模式输出短路后重新启动。特色MAX1937/MX1938/MAX1939CPU内核控制器。Maxim>AppNotes>AutomotivePower-SupplyCircuitsKeywords:Latch-off,latchoff,controller,CPUcontroller,CPUcoresupply,shortcircuit,hiccupmodeFeb27,2003APPLICATIONNOTE1901ConvertaCPUCoreSupplyfromLatchoffModetoHiccupModeDuringaShortCircuitAbstract:ThisdesignnoteshowshowtoconvertaCPUcoresupplyfromlatchoffmodetohiccupmodeduringashortcircuit.Addingtwoinexpensivevoltagecomparatorstocorecontrollerscanenablehiccupmodeandrestarttheoutputafterashortcircuit.TheMAX1937/MX1938/MAX1939CPUcorecontrollersarefeatured.Topreventexcessivepowerdissipationduringoutputshortcircuit,theMAX1937/MAX1938/MAX1939providealatchofffeatureundereithershortcircuitorunder-voltage-lockoutcondition