标签: mcp73871

ThischaptercontainsgeneralinformationthatwillbeusefultoknowbeforeusingtheMCP73871EvaluationBoardUser’sGuide.Itemsdiscussedinthischapterinclude:•DocumentLayout•ConventionsUsedinthisGuide•RecommendedReading•TheMicrochipWebSite•CustomerSupport•DocumentRevisionHistoryMCP73871EvaluationBoardUser’sGuide2008MicrochipTechnologyInc.DS51755ANotethefollowingdetailsofthecodeprotectionfeatureonMicrochipdevices:MicrochipproductsmeetthespecificationcontainedintheirparticularMicrochipDataSheet.Microchipbelievesthatitsfamilyofproductsisoneofthemostsecurefamiliesofitskindonthemarkettoday,whenusedintheintendedmannerandundernormalconditions.Therearedishonestandpossiblyillegalmethodsusedtobreachthecodeprotectionfeature.Allofthesemethods,toourknowledge,requireusingtheMicrochipproductsinamanneroutsidetheoperatingspeci……

ThischaptercontainsgeneralinformationthatwillbeusefultoknowbeforeusingtheMCP73871DemoBoardwithVoltageProportionalCurrentControl.Itemsdiscussedinthischapterinclude:•DocumentLayout•ConventionsUsedinthisGuide•RecommendedReading•TheMicrochipWebSite•CustomerSupport•DocumentRevisionHistoryMCP73871DemoBoardwithVoltageProportionalCurrentControlUser’sGuide2009MicrochipTechnologyInc.DS51812BNotethefollowingdetailsofthecodeprotectionfeatureonMicrochipdevices:MicrochipproductsmeetthespecificationcontainedintheirparticularMicrochipDataSheet.Microchipbelievesthatitsfamilyofproductsisoneofthemostsecurefamiliesofitskindonthemarkettoday,whenusedintheintendedmannerandundernormalconditions.Therearedishonestandpossiblyillegalmethodsusedtobreac……

TherechargeableLi-Ion/Li-Polybatteriesarewidelyusedintoday’sportableConsumerElectronics(CE).CommonlyseenLi-PolybatteriesareLi-IonPolymerbatteriesthatuseasolidpolymerseparatorandsharethesamechargealgorithmwithLi-Ionbatteries.Thus,Li-IonbatterieswillrepresentbothLi-IonandLi-Polybatteriesinthisapplicationnote.Becauseofthegrowingfeaturesandtheincreasingsizeofthedisplayinaportableelectronicproduct,thebatteryusageisalsomodifying.Thedailybatterychargingfrequencyincreases,anditbecomesimportanttooperateadevicewhilechargingitsbattery.Thetraditionalmethodtodesignabattery-poweredsystemistoconnectthesystemloaddirectlyonthebattery.ThesystemloadcontinuouslydischargestheLi-Ionbatteryandcostsabattery’slifecycle.InordertomaximizethelifecycleofLi-Ionbatteries,itisrecommendedtoterminatethechargeproperlyandpowerthesystemfromtheinputpowersupply,whenitAN1260Li-Ion/Li-PolyBatteryChargeandSystemLoadSharingManagementDesignGuideWithMCP73871isavailable.TopreventoverchargingLi-Ionbatteries,Author:BrianChuanelapsetimerisusuallyrequiredasasecondaryMicrochipTechnologyInc.methodtoturnoffthebatterychargeactivities,beforeaproperterminationconditionismet.Minimumcurrent……