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资料编号:943127
 
资料名称:TPS65145PWP
 
文件大小: 865K
   
说明
 
介绍:
TRIPLE OUTPUT LCD SUPPLY WITH LINEAR REGULATOR AND POWER GOOD
 
 


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本平台电子爱好着纯手工中文简译:截至2020/5/17日,支持英文词汇500个
www.ti.com
FEATURESDESCRIPTION
应用程序
Vin
Vo1
Vo3
电源 不错
vo2
Vo4
3.3 v
增压
变频器
正 费用
费用 泵
电源 不错
线性 调节器
控制器
tps65140/45
向上 至 15 v / 400 ma
向上 至 30 v / 20 ma
向上 至 −12 v / 20 ma
2.7 v 至 5.8 v
TPS65140
TPS65145
SLVS497B–SEPTEMBER2003–REVISEDMARCH2004
TRIPLEOUTPUTLCDSUPPLYWITHLINEARREGULATORANDPOWERGOOD
2.7-vto5.8-vinputvoltagerange
thetps65140/145offersacompactandsmall
powersupplysolutiontoprovideallthreevoltages
1.6-mhzfixedswitchingfrequency
requiredbythinfilmtransistor(tft)lcddisplays.
3IndependentAdjustableOutputs
Theauxiliarylinearregulatorcontrollercanbeused
mainoutputupto15vwith&指示灯;1%typical
togeneratea3.3-vlogicpowerrailforsystems
OutputVoltageAccuracy
poweredbya5-vsupplyrailonly.
negativeoutputvoltagedownto-12v/20ma
themainoutputvo1isa1.6-mhzfixedfrequency
positiveoutputvoltageupto30v/20ma
PWMboostconverterprovidingthesourcedrive
voltageforthelcddisplay.thedeviceisavailablein
auxiliary3.3-vlinearregulatorcontroller
twoversionswithdifferentinternalswitchcurrent
InternalSoftStart
limitstoallowtheuseofasmallerexternalinductor
internalpower-onsequencing
whenloweroutputpowerisrequired.thetps65140
hasatypicalswitchcurrentlimitof2.3aandthe
FaultDetectionofallOutputs
tps65145hasatypicalswitchcurrentlimitof1.37a.
ThermalShutdown
Afullyintegratedadjustablechargepump
SystemPowerGood
加强肋/triplerprovidesthepositivelcdgatedrive
电压.anexternallyadjustablenegativecharge
availableintssop-24andqfn-24
pumpprovidesthenegativegatedrivevoltage.到期
PowerPAD™Packages
tothehigh1.6-mhzswitchingfrequencyofthe
chargepumps,inexpensiveandsmall220-nfcapaci-
torscanbeused.
TFTLCDDisplaysforNotebooks
另外,thetps65140/145hasasystempower
TFTLCDDisplaysforMonitors
goodoutputtoindicatewhenallsupplyrailsare
PortableDVDPlayers
可接受.forlcdpanelspoweredby5v,onlythe
TabletPCs
tps65140/145hasalinearregulatorcontrollerusing
CarNavigationSystems
anexternaltransistortoprovidearegulated3.3v
outputforthedigitalcircuits.formaximumsafety,这
IndustrialDisplays
entiredevicegoesintoshutdownassoonasoneof
theoutputsisoutofregulation.thedevicecanbe
enabledagainbytogglingtheinputortheenable
(en)pintognd.
pleasebeawarethatanimportantnoticeconcerningavailability,标准保修,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
powerpadisatrademarkoftexasinstruments.
productiondatainformationiscurrentasofpublicationdate.
copyright©2003–2004,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
必要包括测试所有参数.
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