Texas Instruments LM34910C Handleiding
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BST
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GND
RTN
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ON
/SD
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IN
LM34910C
www.ti.com
SNVS517B–MAY2007–REVISEDMARCH2013
LM34910CHighVoltage(50V,1.25A)StepDownSwitchingRegulator
CheckforSamples:LM34910C
1
FEATURES
DESCRIPTION
TheLM34910CStepDownSwitchingRegulator
2
•Integrated55V,N-ChannelBuckSwitch
featuresallofthefunctionsneededtoimplementa
•IntegratedStart-UpRegulator
lowcost,efficient,buckbiasregulatorcapableof
•InputVoltageRange:8Vto50V
supplying1.25Atotheload.Thisbuckregulator
containsa55VN-ChannelBuckSwitch,andis
•NoLoopCompensationRequired
availableinthethermallyenhancedWSON-10
•Ultra-FastTransientResponse
package.Thehystereticregulationschemerequires
•OperatingFrequencyRemainsConstantwith
noloopcompensation,resultsinfastloadtransient
LoadCurrentandInputVoltage
response,andsimplifiescircuitimplementation.The
operatingfrequencyremainsconstantwithlineand
•MaximumDutyCycleLimitedDuringStart-Up
loadvariationsduetotheinverserelationship
•AdjustableOutputVoltage
betweentheinputvoltageandtheon-time.The
•ValleyCurrentLimitAt1.25A
currentlimitdetectionissetat1.25A.Additional
featuresinclude:VCCunder-voltagelockout,thermal
•PrecisionInternalReference
shutdown,gatedriveunder-voltagelockout,and
•LowBiasCurrent
maximumdutycyclelimiter.
•HighlyEfficientOperation
•ThermalShutdown
Package
•WSON-10(4mmx4mm)
TYPICALAPPLICATIONS
•ExposedThermalPadForImprovedHeat
Dissipation
•HighEfficiencyPoint-Of-Load(POL)Regulator
•Non-IsolatedTelecommunicationBuck
Regulator
•SecondaryHighVoltagePostRegulator
ConnectionDiagram
10-LeadWSON
1
Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof
TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
2Alltrademarksarethepropertyoftheirrespectiveowners.
PRODUCTIONDATAinformationiscurrentasofpublicationdate.
Copyright©2007–2013,TexasInstrumentsIncorporated
ProductsconformtospecificationsperthetermsoftheTexas
Instrumentsstandardwarranty.Productionprocessingdoesnot
necessarilyincludetestingofallparameters.
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | LM34910C |
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