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FEATURESDESCRIPTION
产品
Vin
Vo1
Vo3
Vcom
Vo2
Vo4
3.3 v
Boost
转换器
积极的 承担
打气
负的
承担 打气
vcom 缓存区
直线的 调整器
控制
tps65100/05
向上 至 15 v / 400 毫安
向上 至 30 v / 20 毫安
向上 至 −12 v / 20 毫安
2.7 v 至 5.8 v
TPS65100
TPS65105
SLVS496B–SEPTEMBER2003–REVISEDMARCH2004
TRIPLEOUTPUTLCDSUPPLYWITHLINEARREGULATORANDVCOMBUFFER
•
2.7-vto5.8-vinputvoltagerange
thetps65100/05offersacompactandsmallpower
supplysolutionthatprovidesallthreevoltages
•
1.6-mhzfixedswitchingfrequency
requiredbythinfilmtransistor(tft)lcddisplays.
•
3IndependentAdjustableOutputs
Theauxiliarylinearregulatorcontrollercanbeused
•
mainoutputofupto15vwith<1%output
togeneratea3.3-vlogicpowerrailforsystems
VoltageAccuracy
poweredbya5-vsupplyrailonly.
•
negativeoutputvoltagedownto-12v/20ma
themainoutput,vo1,isa1.6-mhz,fixed-频率
•
positiveoutputvoltageupto30v/20ma
PWMboostconverterprovidingthesourcedrive
voltageforthelcddisplay.thedeviceisavailablein
•
IntegratedVCOMBuffer
twoversionswithdifferentinternalswitchcurrent
•
auxiliary3.3-vlinearregulatorcontroller
limitstoallowtheuseofasmallerexternalinductor
•
InternalSoftStart
whenloweroutputpowerisrequired.thetps65100
hasatypicalswitchcurrentlimitof2.3a,andthe
•
internalpower-onsequencing
tps65105hasatypicalswitchcurrentlimitof1.37a.
•
FaultDetectionofallOutputs
Afullyintegratedadjustablechargepump
•
ThermalShutdown
doubler/triplerprovidesthepositivelcdgatedrive
电压.anexternallyadjustablenegativecharge
•
availableintssop-24andqfn-24
pumpprovidesthenegativegatedrivevoltage.预定的
PowerPAD™Packages
tothehigh1.6-mhzswitchingfrequencyofthe
chargepumps,inexpensiveandsmall220-nfcapaci-
torscanbeused.
•
TFTLCDDisplaysforNotebooks
thetps65100/05hasanintegratedvcombufferto
•
TFTLCDDisplaysforMonitors
powerthelcdbackplane.forlcdpanelspowered
•
PortableDVDPlayers
by5vonly,thetps65100/05hasalinearregulator
•
TabletPCs
controllerusinganexternaltransistortoprovidea
•
CarNavigationSystems
regulated3.3-voutputforthedigitalcircuits.为
maximumsafety,theentiredevicegoesintoshut-
•
IndustrialDisplays
downassoonasoneoftheoutputsisoutof
规章制度.thedevicecanbeenabledagainby
togglingtheinputortheenable(en)pintognd.
pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
powerpadisatrademarkoftexasinstruments.
productiondatainformationiscurrentasofpublicationdate.
copyright©2003–2004,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
necessarilyincludetestingofallparameters.
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