5,5 mm x 3,5 mm
真实的 大小
www.德州仪器.com
FEATURESAPPLICATIONS
描述
bq24100,bq24103
bq24105,bq24108
bq24113,bq24115
SLUS606C–JUNE2004–REVISEDSEPTEMBER2005
synchronousswitchmode,li-ionandli-polymercharge-管理
icwithintegratedpowerfets(bqswitcher™)
•
HandheldProducts
•
IdealForHighlyEfficientChargerDesignsFor
单独的-,二-orthree-cellli-ionand
•
PortableMediaPlayers
li-polymer
•
IndustrialandMedicalEquipment
BatteryPacks
•
PortableEquipment
•
integratedsynchronousfixed-频率
pwmcontrolleroperatingat1.1mhzwith
0%to100%DutyCycle
ThebqSWITCHER™seriesarehighlyintegrated
•
integratedpowerfetsforupto2-acharge
li-ionandli-polymerswitch-modecharge
比率
managementdevicestargetedatawiderangeof
portableapplications.thebqswitcher™series
•
高-accuracyvoltageandcurrent
offersintegratedsynchronousPWMcontrollerand
规章制度
powerfets,高-accuracycurrentandvoltage
•
availableinbothstand-alone(建造-incharge
规章制度,chargepreconditioning,chargestatus,和
managementandcontrol)和
chargetermination,inasmall,thermallyenhanced
系统-控制(undersystemcommand)
qfnpackage.thesystem-controlledversion
版本
providesadditionalinputsforfullchargemanagement
undersystemcontrol.
•
StatusOutputsForLEDorHostProcessor
interfaceindicatescharge-在-progress,
ThebqSWITCHERchargesthebatteryinthree
chargecompletion,故障,andac-adapter
阶段:conditioning,constantcurrent,andconstant
PresentConditions
电压.chargeisterminatedbasedonuser-
selectableminimumcurrentlevel.aprogrammable
•
20-vmaximumvoltageratingoninandout
chargetimerprovidesasafetybackupforcharge
管脚
末端.thebqswitcherautomaticallyrestarts
•
高-sidecurrentsensing
thechargecycleifthebatteryvoltagefallsbelowan
•
OptionalBatteryTemperatureMonitoring
internalthreshold.thebqswitcherautomatically
enterssleepmodewhenV
CC
supplyisremoved.
•
AutomaticSleepModeforLowPower
消耗量
•
系统-controlledversioncanbeusedin
NiMHandNiCdApplications
•
UsesCeramicCapacitors
•
ReverseLeakageProtectionPreventsBattery
Drainage
•
ThermalShutdownandProtection
•
建造-inbatterydetection
pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
bqswitcher,powerpadaretrademarksoftexasinstruments.
productiondatainformationiscurrentasofpublicationdate.
copyright©2004–2005,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
necessarilyincludetestingofallparameters.
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