Texas Instruments BQ24311 Handleiding

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bq24311DSG

bq24080

Charger IC

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bq24311

SLUSBT8–JULY2014

bq24311OvervoltageandOvercurrentProtectionICand

Li+ChargerFront-EndProtectionIC

1

1Features

•ProvidesProtectionforThreeVariables:3Description

Thebq24311isahighlyintegratedcircuitdesignedto

–InputOvervoltage,withRapidResponsein<1

protectLi-ionbatteriesfromchargingcircuitfailures.

μs

TheICcontinuouslymonitorstheinputvoltage,input

–User-ProgrammableOvercurrentwithCurrent

current,andbatteryvoltage.Theinputovervoltage

Limiting

protectionimmediatelyremovespowerfromthe

–BatteryOvervoltage

chargingcircuitbyturningoffaninternalswitch.The

inputprotectionlimitsthesystemcurrentattheuser-

•30VMaximumInputVoltage

programmablevalue,andiftheovercurrentpersists,

•Supportsupto0.3AInputCurrent

switchesthepasselementOFFafterablanking

•RobustAgainstFalseTriggeringDuetoCurrent

period.Additionally,theICalsomonitorsitsowndie

Transients

temperatureandswitchesoffifitbecomestoohot.

•ThermalShutdown

TheICcanbecontrolledbyaprocessorandalso

•EnableInput

providesstatusinformationaboutfaultconditionsto

thehost.

•StatusIndication–FaultCondition

DeviceInformation

2Applications

PARTNUMBERPACKAGEBODYSIZE(NOM)

•MobilePhonesandSmartPhones

bq24311WSON(8)2.00mmx2.00mm

•PDAs

(1)Forallavailablepackages,seetheorderableaddendumat

•MP3Players

theendofthedatasheet.

•Low-PowerHandheldDevices

•Bluetooth™Headsets

4ApplicationInformation

1

AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

Product specificaties