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IS31AP2110IntegratedSiliconSolution,Inc.
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issi.
com1Rev.
B,10/20/201520WSTEREOCLASS-DAUDIOAMPLIFIERWITHPOWERLIMITANDDYNAMICTEMPERATURECONTROLNovember2015GENERALDESCRIPTIONTheIS31AP2110isahighefficiencystereoClass-Daudioamplifierwithadjustablepowerlimitfunctionanddynamictemperaturecontrol.
Theloudspeakerdriveroperatesfrom8~26Vsupplyvoltageandanalogcircuitoperatesat3.
3Vsupplyvoltage.
Itcandeliver20W/CHoutputpowerinto8loudspeakerwithin0.
2%THD+Nandwithoutexternalheatsinkwhenplayingmusic.
IS31AP2110providesparallelBTL(Mono)application,anditcandeliver40Winto4loudspeakerwithin0.
11%THD+N.
Theadjustablepowerlimitfunctionallowsusertosetavoltageraillowerthanhalfof3.
3Vtolimittheamountofcurrentthroughthespeaker.
OutputDCdetectionpreventsspeakerdamagefromlong-timecurrentstress.
Thedynamictemperaturecontrolisagaincontrolsystem.
Aschipjunctiontemperaturehigherthanawarninglevel,thegainlevelwilldecreaseuntiljunctiontemperaturelowerthanthewarninglevel.
Theoutputshortcircuitandovertemperatureprotectionincludeauto-recoveryfeature.
TheIS31AP2110isavailableinathermallyenhancedeTSSOP-28package.
FEATURESSinglesupplyvoltage-8V~26Vforloudspeakerdriver-Built-inLDOoutput3.
3VforothersLoudspeakerpowerfrom24Vsupply-BTLMode:20W/CHinto8@0.
2%THD+N-PBTLMode:40W/CHinto4@0.
11%THD+NLoudspeakerpowerfrom13Vsupply-BTLMode:10W/CHinto8@10%THD+N87%efficientClass-DoperationeliminatesneedforheatsinkDifferentialinputsFourselectable,fixedgainsettingsInternaloscillatorShort-CircuitprotectionwithautorecoveryoptionUnder-voltagedetectionOver-voltageprotectionPopnoiseandclicknoisereductionAdjustablepowerlimitfunctionforspeakerprotectionOutputDCdetectionforspeakerprotectionFilter-FreeoperationOvertemperatureprotectionwithautorecoveryDynamictemperaturecontrolpreventschipfromoverheatingAPPLICATIONSTVaudioBluetoothspeakersystemDockingspeakersystemConsumeraudioequipmentIS31AP2110IntegratedSiliconSolution,Inc.
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B,10/20/2015TYPICALAPPLICATIONCIRCUITIS31AP2110VCCL100FINR+CINR+1FLeftChannelInput0.
1FSDBMicroControllerPBTLFAULTBINR-CINR-1FPGNDAVDDPLIMFBFBOUTR-OUTR+VCC1nF100kVCC1kAGND1F1FRPL1RPL2INL+CINL+1FINL-CINL-1FFBFBOUTL-OUTL+GAIN0GAIN1PGNDVCCR100F0.
1FVCC1nF123456891112141015,1618192023242527,28RightChannelInput1nF1nF1nF1nFFigure1TypicalApplicationCircuit(forBTLStereo,Single-endedInput)IS31AP2110VCCL100FINR+CINR+1F0.
1FSDBMicroControllerPBTLFAULTBINR-CINR-1FPGNDAVDDPLIMOUTR-OUTR+VCC1nF100kVCC1kAGND1F1FRPL1RPL2INL+INL-OUTL-OUTL+AudioInputGAIN0GAIN1PGNDVCCR100F0.
1FVCC1nF123456891112141015,1618192023242527,28VCCFBFB1000pF1000pFFigure2TypicalApplicationCircuit(forParallelBTLMono,Single-endedInput)IS31AP2110IntegratedSiliconSolution,Inc.
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issi.
com3Rev.
B,10/20/2015PINCONFIGURATIONPackagePinConfiguration(TopView)eTSSOP-28IS31AP2110IntegratedSiliconSolution,Inc.
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issi.
com4Rev.
B,10/20/2015PINDESCRIPTIONNo.
PinDescription1SDBShutdownsignalforIC(Low=disabled,outputHi-Z;High=operational).
Voltagecomplianceto26V.
2FAULTBOpendrainoutputusedtodisplayshortcircuitordcdetectfault.
Voltagecompliantto26V.
Shortcircuitfaultscanbesettoauto-recoverybyconnectingFAULTBpintoSDBpin.
Otherwise,bothshortcircuitfaultsanddcdetectfaultsmustberesetbycyclingVCC.
3INL+Positiveaudioinputforleftchannel.
Biasedat1.
65V.
4INL-Negativeaudioinputforleftchannel.
Biasedat1.
65V.
5GAIN0Gainselectleastsignificantbit.
Voltagecomplianceto26V.
6GAIN1Gainselectmostsignificantbit.
Voltagecomplianceto26V.
7,13,17,21,22,26NCNotconnected.
8AGNDAnalogsignalground.
Connecttothethermalpad.
9AVDD3.
3Vregulatedoutput.
10PLIMPowerlimitleveladjustment.
ConnectaresistordividerfromAVDDtoGNDtosetpowerlimit.
GiveVPLIMIT1.
55V)andGNDareallwithoutpowerlimitfeature.
11INR-Negativeaudioinputforrightchannel.
Biasedat1.
65V.
12INR+Positiveaudioinputforrightchannel.
Biasedat1.
65V.
14PBTLParallelBTLmodeswitch,highforparallelBTLoutput.
Voltagecomplianceto26V.
15,16VCCRHigh-voltagepowersupplyforright-channel.
Rightchannelandleftchannelpowersupplyinputsareconnectinternal.
18OUTR+Class-DH-bridgepositiveoutputforrightchannel.
19PGNDPowergroundfortheH-bridges.
20OUTR-Class-DH-bridgenegativeoutputforrightchannel.
23OUTL-Class-DH-bridgenegativeoutputforleftchannel.
24PGNDPowergroundfortheH-bridges.
25OUTL+Class-DH-bridgepositiveoutputforleftchannel.
27,28VCCLHigh-voltagepowersupplyforleft-channel.
Rightchannelandleftchannelpowersupplyinputsareconnectinternal.
ThermalPadConnecttoGND.
IS31AP2110IntegratedSiliconSolution,Inc.
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issi.
com5Rev.
B,10/20/2015ORDERINGINFORMATIONIndustrialRange:-40°CTo+85°COrderPartNo.
PackageQTYIS31AP2110-ZLS2-TRIS31AP2110-ZLS2eTSSOP-28,Lead-free2500/Reel50/TubeCopyright2015IntegratedSiliconSolution,Inc.
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ISSIreservestherighttomakechangestothisspecificationanditsproductsatanytimewithoutnotice.
ISSIassumesnoliabilityarisingoutoftheapplicationoruseofanyinformation,productsorservicesdescribedherein.
Customersareadvisedtoobtainthelatestversionofthisdevicespecificationbeforerelyingonanypublishedinformationandbeforeplacingordersforproducts.