Texas Instruments LM9070 Handleiding
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LM9070
www.ti.com
SNVS130E–DECEMBER1999–REVISEDAPRIL2013
LM9070Low-DropoutSystemVoltageRegulatorwithKeep-AliveON/OFFControl
CheckforSamples:LM9070
1
FEATURES
DESCRIPTION
TheLM9070isa5V,3%accurate,250mAlow-
2
•AutomotiveApplicationReliability
dropoutvoltageregulator.Theregulatorfeaturesan
•3%OutputVoltageTolerance
activelowdelayedresetoutputflagwhichcanbe
•InsensitivetoRadiatedRFI
usedtoresetamicroprocessorsystemonturn-ON
andintheeventthattheregulatoroutputfallsoutof
•DropoutVoltageLessthan800mVwith250
regulationforanyreason.Anexternalcapacitor
mAOutputCurrent
programsadelaytimeintervalbeforetheresetoutput
•ExternallyProgrammedResetDelayInterval
canreturnhigh.
•Keep-AliveFeaturewith2LogicControlInputs
DesignedforautomotiveapplicationtheLM9070
•60VLoadDumpTransientProtection
containsavarietyofprotectionfeaturessuchas
•ThermalShutdown
reversebattery,over-voltageshutdown,thermal
shutdown,inputtransientprotectionandawide
•ShortCircuitProtectionandDisableSafety
operatingtemperaturerange.
Features
Auniquetwo-inputlogiccontrolschemeisusedto
•ReverseBatteryProtection
enableordisabletheregulatoroutput.AnON/OFF
•LowOFFQuiescentCurrent,50μAMaximum
inputcanbeprovidedbyanignitionswitchderived
•WideOperatingTemperatureRange−40°Cto
signalwhileasecond,Keep-Aliveinput,isgenerated
+125°C
byasystemcontroller.Thisallowsforasystemto
remainONafterignitionhasbeenswitchedOFF.The
•TO-263and20-PinPowerSurfaceMount
systemcontrollercanthenexecuteapower-down
Packages
routineandafterwhichcommandtheregulatorOFF
•LeadFormCompatiblewithTLE4267TO-220
toalowquiescentcurrentstate(60μAmax).
Regulator
Designtechniqueshavebeenemployedtoallowthe
regulatortoremainoperationalandnotgeneratefalse
resetsignalswhensubjectedtohighlevelsofRF
energy(300V/mfrom2MHzto400MHz).
ConnectionDiagramsandOrderingInformation
Backsidemetalisinternallyconnectedtoground.
Figure1.7LeadTO-263(TopView)Figure2.20-PinSOICPackage
PackageNumberKTW0007B
1
Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof
TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
2Alltrademarksarethepropertyoftheirrespectiveowners.
PRODUCTIONDATAinformationiscurrentasofpublicationdate.
Copyright©1999–2013,TexasInstrumentsIncorporated
ProductsconformtospecificationsperthetermsoftheTexas
Instrumentsstandardwarranty.Productionprocessingdoesnot
necessarilyincludetestingofallparameters.
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | LM9070 |
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