Texas Instruments LMV431B Handleiding
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LMV431
,
LMV431A
,
LMV431B
SNVS041G–MAY2004–REVISEDSEPTEMBER2014
LMV431xLow-Voltage(1.24-V)AdjustablePrecisionShuntRegulators
1Features3Description
TheLMV431,LMV431AandLMV431Bareprecision
1
•Low-VoltageOperation/WideAdjustRange
1.24Vshuntregulatorscapableofadjustmentto30
(1.24V/30V)
V.Negativefeedbackfromthecathodetotheadjust
•0.5%InitialTolerance(LMV431B)
pincontrolsthecathodevoltage,muchlikeanon-
•TemperatureCompensatedforIndustrial
invertingopampconfiguration(RefertoSymboland
FunctionalDiagrams).Atwo-resistorvoltagedivider
TemperatureRange(39PPM/°Cforthe
terminatedattheadjustpincontrolsthegainofa
LMV431AI)
1.24Vband-gapreference.Shortingthecathodeto
•LowOperationCurrent(55µA)
theadjustpin(voltagefollower)providesacathode
•LowOutputImpedance(0.25Ω)
voltageofa1.24V.
•FastTurn-OnResponse
TheLMV431,LMV431AandLMV431Bhave
•LowCost
respectiveinitialtolerancesof1.5%,1%,and0.5%,
andfunctionallylendthemselvestoseveral
2Applications
applicationsthatrequirezenerdiodetype
performanceatlowvoltages.Applicationsincludea3
•ShuntRegulator
Vto2.7Vlowdrop-outregulator,anerroramplifierin
•SeriesRegulator
a3Voff-lineswitchingregulatorandevenasa
•CurrentSourceorSink
voltagedetector.Thesepartsaretypicallystablewith
capacitiveloadsgreaterthan10nFandlessthan50
•VoltageMonitor
pF.
•ErrorAmplifier
TheLMV431,LMV431AandLMV431Bprovide
•3-VOff-LineSwitchingRegulator
performanceatacompetitiveprice.
•LowDropoutN-ChannelSeriesRegulator
DeviceInformation
(1)
PARTNUMBERPACKAGEBODYSIZE(NOM)
LMV431SOT-23(5)2.90mmx1.60mm
LMV431TO-92(3)4.30mmx4.30mm
LMV431SOT-23(3)2.92mmx1.30mm
(1)Forallavailablepackages,seetheorderableaddendumat
theendofthedatasheet.
4SymbolandFunctionalDiagrams
1
AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,
intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | LMV431B |
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