Texas Instruments LM4880 Handleiding

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LM4880

www.ti.com

SNAS103C–NOVEMBER1995–REVISEDMAY2013

LM4880Dual250mWAudioPowerAmplifierwith

ShutdownMode

CheckforSamples:LM4880

1

FEATURES

DESCRIPTION

TheLM4880isadualaudiopoweramplifiercapable

2

•NoBootstrapCapacitorsorSnubberCircuits

ofdeliveringtypically250mWperchannelof

areNecessary

continuousaveragepowertoan8Ωloadwith0.1%

•SmallOutline(SOIC)andPDIPPackaging

THD+Nusinga5Vpowersupply.

•Unity-GainStable

Boomeraudiopoweramplifiersweredesigned

•ExternalGainConfigurationCapability

specificallytoprovidehighqualityoutputpowerwitha

minimalamountofexternalcomponentsusing

APPLICATIONS

surfacemountpackaging.

•HeadphoneAmplifier

SincetheLM4880doesnotrequirebootstrap

capacitorsorsnubbernetworks,itisoptimallysuited

•PersonalComputers

forlow-powerportablesystems.

•CD-ROMPlayers

TheLM4880featuresanexternallycontrolled,low-

powerconsumptionshutdownmode,aswellasan

KEYSPECIFICATIONS

internalthermalshutdownprotectionmechanism.

•THD+Nat1kHzat200mWContinuousAverage

Theunity-gainstableLM4880canbeconfiguredby

OutputPowerinto8Ω:0.1%(max)

externalgain-settingresistors.

•THD+Nat1kHzat85mWContinuousAverage

OutputPowerinto32Ω:0.1%(typ)

•OutputPowerat10%THD+Nat1kHzinto8Ω

325mW(typ)

•ShutdownCurrent0.7µA(typ)

•2.7Vto5.5VSupplyVoltageRange

ConnectionDiagram

Figure1.SmallOutlineandPDIPPackages-TopView

SeePackageNumberD0008AforSOIC

orPackageNumberP0008EforPDIP

1

Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof

TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.

2Alltrademarksarethepropertyoftheirrespectiveowners.

PRODUCTIONDATAinformationiscurrentasofpublicationdate.

Copyright©1995–2013,TexasInstrumentsIncorporated

ProductsconformtospecificationsperthetermsoftheTexas

Instrumentsstandardwarranty.Productionprocessingdoesnot

necessarilyincludetestingofallparameters.

Product specificaties