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FEATURESDESCRIPTION
产品
1
2
3
4
10
9
8
5
交流
USB
输出
VSS
STAT1
STAT2 7
6
TS
ISET2
ISET1
bq24020DRC
+
电池PACKPACK+
PACK−
系统
系统
接口
VDC
地
VBUS
地
D+
d −
USB
端口
交流
ADAPTER
UDG−02184
R
设置
CE
bq24020
,,
bq24022
,,
bq24023
bq24024,bq24025,bq24026
bq24027
SLUS549D–DECEMBER2002–REVISEDMARCH2006
单独的-碎片,li-ionandli-polchargericwithautonomoususb-portand
交流-adaptersupplymanagement(bqtiny™-ii)
•
Small3mmx3mmMLPPackage
thebqtiny-iiseriesarehighly-整体的,有伸缩性的
li-ionlinearchargeandsystempowermanagement
•
ChargesandpowersSystemsfromEitherAC
devicesforspace-limitedchargerapplications.ina
AdapterorUSBWithAutonomous
singlemonolithicdevice,thebqtiny-iioffers
电源-sourceselection
integratedusb-portandac-adaptersupply
•
IntegratedUSBControlWithSelectable100
managementwithautonomouspower-源
mAand500mAChargeRates
选择,电源-fetandcurrent-sensorinterfaces,
•
idealforlow-dropoutchargerdesignsfor
高-accuracycurrentandvoltageregulation,承担
状态,andchargetermination.
单独的-cellli-ionorli-polpacksinspace
Limitedportableapplications
thebqtiny-iiautomaticallyselectstheusb-portor
•
IntegratedpowerFETandCurrentSensorfor
theac-adapterasthepowersourceforthesystem.在
upto1-achargeapplicationsfromac
theusbconfiguration,thehostcanselectfromtwo
presetchargeratesof100maor500ma.inthe
Adapter
交流-adapterconfiguration,anexternalresistorsetsthe
•
PrechargeConditioningWithSafetyTimer
systemorchargecurrent.
•
powergood(acadapterpresent)状态
thebqtiny-iichargesthebatteryinthreephases:
输出
conditioning,constantcurrent,andconstantvoltage.
•
OptionalBatteryTemperatureMonitoring
chargeisterminatedbasedonminimumcurrent.一个
BeforeandDuringCharge
internalchargetimerprovidesabackupsafetyfor
•
automaticsleepmodeforlow-电源
chargetermination.thebqtiny-iiautomatically
restartsthechargeifthebatteryvoltagefallsbelow
消耗量
aninternalthreshold.thebqtiny-iiautomatically
enterssleepmodewhenbothsuppliesareremoved.
•
pdas,mp3players
•
DigitalCameras
•
Internetappliances
•
Smartphones
pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
bqtinyisatrademarkoftexasinstruments.
UNLESSOTHERWISENOTEDthisdocumentcontains
copyright©2002–2006,texasinstrumentsincorporated
productiondatainformationcurrentasofpublicationdate.
ProductsconformtospecificationsperthetermsofTexas
instrumentsstandardwarranty.productionprocessingdoesnot
necessarilyincludetestingofallparameters.
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