www.德州仪器.com
描述(持续)
bq24030,bq24031,bq24032,
bq24032a,bq24035,bq24038,bq24039
SLUS618C–AUGUST2004–REVISEDJUNE2005
thesedeviceshavelimitedbuilt-inesdprotection.theleadsshouldbeshortedtogetherorthedevice
placedinconductivefoamduringstorageorhandlingtopreventelectrostaticdamagetotheMOSFET
门.
thepowerselectpin,psel,defineswhichinputsourceistobeusedfirst(primarysource–acorusb).ifthe
primarysourceisnotavailable,thentheicautomaticallyswitchesovertotheother
secondary
sourceifavailable
orthebatteryasthelastoption.ifthepselissetlow,theusbinputisselectedfirstandifnotavailable,theac
lineisselected(ifavailable)butprogrammedtoausbinputlimitingrate(100ma/500mamax).thisfeature
allowstheuseofoneinputconnector,wherethehostprogramsthepselpinaccordingtowhatsourceis
连接(acadaptororusbport).
thebq24039hasreplacedthepselpin(nodenowtiedhighinternally–acpriority)withtheiset3pinthat
allowsfortwicethestandardusbinputlimitingcurrentlevels(200ma/1000ma),whensettohigh.thisisa
featureformanufacturersthatsupplytheirownusbpowersourcethatisratedforthishighercurrentlevel.
thebq24038replacesusbpgwithpinvbsel,toenableuserselectionofthechargevoltage.inaddition,管脚
acpgwasmodifiedtopg.pgisactivelowwheneitheracpowerorusbpowerisdetected.
theiset1pinprogramsthebattery'sfastchargeconstantcurrentlevelwitharesistor.duringnormalac
运作,theinputsupplyprovidespowertoboththeout(系统)andbatpins.forpeakorexcessiveloads
(typicallywhenoperatingfromtheusbpower,psel=低)thatwouldcausetheinputsourcetoentercurrent
限制(orq3-usbfetlimitingcurrent)anditssourceandsystemvoltage(outpin)todrop,thedynamic
电源-pathmanagement(dppm)featurereducesthechargingcurrentattemptingtopreventanyfurtherdropin
systemvoltage.thisfeatureallowstheselectionofalowercurrentratedadaptorbasedontheaverageload
(i
sys-avg
+I
bat-pgm
)ratherthanahighpeaktransientload.
ORDERINGINFORMATION
(1)
BATTERYOUTPINFORACPARTPACKAGE
T
一个
状态
电压(v)inputconditionsnumber
(2)(3)
标记
4.2regulatedto6v
(4)
bq24030RHLRReleasedANB
4.2regulatedto4.4v
(4)
bq24032RHLRReleasedAMZ
–40°Cto125°C
4.2regulatedto4.4v
(4)
bq24032ARHLRReleasedBPE
4.2regulatedto4.4v
(4)
bq24032ARHLTReleasedBPE
4.2cutoffforacovervoltage
(5)
bq24035RHLRReleasedANA
4.2cutoffforacovervoltage
(5)
bq24039RHLRPreviewANH
4.36regulatedto6v
(4)
bq24031RHLRPreviewBOU
4.36regulatedto6v
(4)
bq24031RHLTPreviewBOU
4.2/4.36selectableregulatedto4.4vbq24038rhlrreleasedbow
4.2/4.36selectableregulatedto4.4vbq24038rhltreleasedbow
(1)forthemostcurrentpackageandorderinginformation,seethepackageoptionaddendumattheendofthisdocument,orseetheti
Websiteatwww.德州仪器.com.
(2)therhlpackageisavailableinthefollowingoptions:
r-tapedandreeledinquantitiesof3,000devicesperreel.
t-tapedandreeledinquantitiesof250devicesperreel.
(3)thisproductisrohscompatible,includingaleadconcentrationthatdoesnotexceed0.1%oftotalproductweight,andissuitablefor
useinspecifiedlead-freesolderingprocesses.inaddition,thisproductusespackagematerialsthatdonotcontainhalogens,包含
溴(br)orantimony(sb)above0.1%oftotalproductweight.
(4)ifac<v
o(输出-reg)
,theacisconnectedtotheoutpinbyap-场效应晶体管,(q1).
(5)ifac>v
(截-止)
thep-fetdisconnectstheoutpinfromtheac.
2
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