Reverse Battery Charger Protection

Abstract:Combiningalinear-modesingle-celllithium-ionbatterycharger(MAX1551)withacomparator(MAX9001)andn-channelFETaddsalayerofreverse-batteryprotectionthatprotectsasinglecelllithium-ionbatterychargerandbatteryfromdamageduetobackwardsinsertion.Maxim>AppNotes>AmplifierandComparatorCircuitsBatteryManagementCircuitProtectionKeywords:reversebatteryprotection,lithium-ionbatterycharger,comparators,n-channelFETsFeb16,2011APPLICATIONNOTE4572ReverseBatteryChargerProtectionBy:ZeeshawnShameem,CustomerApplicationsEngineerAbstract:Combiningalinear-modesingle-celllithium-ionbatterycharger(MAX1551)withacomparator(MAX9001)andn-channelFETaddsalayerofreverse-batteryprotectionthatprotectsasinglecelllithium-ionbatterychargerandbatteryfromdamageduetobackwardsinsertion.AsimilarversionofthisarticleappearedintheMarch1,2007issueofPETmagazine.Manybatterypoweredapplicationsusediodesforreversebatt