20-WMONO CLASS-DAUDIO POWER AMPLIFIER - …

1 PO Output POWER W0102030405060708090048121620 Efficiency %EFFICIENCYvsOUTPUT POWERVCC = 18 V4 8 ZL Load Impedance 579111315171921PO Maximum Output POWER WMAXIMUM OUTPUT POWERvsLOAD IMPEDANCETA = 25 C,10% THD MaximumVCC = 18 VVCC = 15 VVCC = 12 DECEMBER2002 REVISEDAUGUST201020-WMONOCLASS-DAUDIOPOW ERAMPLIFIERC heckforSamples:TPA3001D11 FEATURESDESCRIPTION23 20 WInto8- LoadFrom18-VSupply(10%TheTPA3001D1(somet imesreferredtoasTHD+N)TPA3001)is a 20-Wmonauralbridge-tiedload(BTL)class-Da udiopoweramplifier(class-Damp)withhigh Short-CircuitProtection(ShorttoVCC, Shorttoefficiency, ,ShortBetweenOutputs)TPA3001D1candrive4- or8- speakerswithonly Third-GenerationModulationTechnique:a ferritebeadfilterrequiredtoreduceEMI. ReplacesLargeLCFilterWithSmall,Thegainof theamplifieriscontrolledbytwoinputLow-Co stFerriteBeadFilterinMostterminals, gainof12,18, , ImprovedSNRrejection.

2 LowSupplyCurrent:8 mATypat12 VTheamplifieralsoincludesdepopcircuitryt oreduce ShutdownControl:< 1mA Typtheamountofpopatpower-upandwhencyclin g Space-Saving, PackagingTheTPA3001D1(TPA3001)is availableinthe24-pinthermallyenhancedTSS OP package(PWP),whichAPPLICATIONS eliminatestheneedforanexternalheatsink. LCDM onitors/TVs Hands-FreeCarKits PoweredSpeakers1 Pleasebeawarethatanimportantnoticeconcer ningavailability,standardwarranty,anduse in a 2002 2010, 56789101112242322212019181716151413 INNINPGAIN0 GAIN1 SHUTDOWNPGNDVCLAMPBSNPVCCOUTNOUTNPGNDVCC VREFBYPASSCOSCROSCAGNDAGNDBSPPVCCOUTPOUT PPGNDPWP PACKAGE(TOP VIEW) tpa3001d1 SLOS398E DECEMBER2002 (1)PACKAGEDDEVICESTATSSOP(PWP)(2) 40 C to85 CTPA3001D1 PWP(1)Forthemostcurrentpackageandorderin ginformation,seethePackageOptionAddendum attheendofthisdocument, (2)ThePWPpackageis tapedandreeledpart,addthesuffixR tothepartnumber( , tpa3001d1 PWPR).

3 ,19 AnaloggroundterminalBootstrapterminalfor high-sidegatedriveofnegativeBTLoutput(co nnecta capacitorwitha 51- BSN8 Iresistorin seriesfromOUTNtoBSN)Bootstrapterminalfor high-sidegatedriveofpositiveBTLoutput(co nnecta capacitorwitha 51- BSP17 Iresistorin seriesfromOUTPtoBSP)BYPASS22 IConnect1-mF capacitortogroundforBYPASS voltagefilteringCOSC21 IConnecta 220-pFcapacitortogroundtosetoscillationf requencyGAIN03 IBit0 ofgaincontrol(seeTable1 forgainsettings)GAIN14 IBit1 ofgaincontrol(seeTable1 forgainsettings)INN1 INegativedifferentialinputINP2 IPositivedifferentialinputOUTN10,11 ONegativeBTLoutput,connectSchottkydiodef romPGNDtoOUTN forshort-circuitprotectionOUTP14,15 OPositiveBTLoutput,connectSchottkydiodef romPGNDtoOUTP forshort-circuitprotectionPGND6,12,13 PowergroundPVCC9,16 IHigh-voltagepowersupply(foroutputstages )ROSC20 IConnecta 120-k resistortogroundtosetoscillationfrequenc ySHUTDOWN5 IShutdownterminal(negativelogic),TTLcomp atible,21-VcompliantVCC24 IAnaloghigh-voltagepowersupplyVCLAMP7 OConnect1-mF capacitortogroundtoprovidereferencevolta geforH-bridgegatesVREF23O5-Vinternalregu latorforcontrolcircuitry(connecta to1-mF capacitortoground)ConnecttoAGNDandPGND ThermalviasonthePCBshouldconnectthispadt oa 2002 2010,TexasInstrumentsIncorporatedProduct FolderLink(s): tpa3001d1 GateDrive_+GateDrive_+_+_+GainAdjustGain AdjustStart-UpProtectionLogicShort-Circu itDetectThermalVCC OKRampGeneratorBiasesandReferencesGain2 AGNDVREFVREFPVCCINNOUTNPGNDPVCCOUTPPGNDI NPSHUTDOWNGAIN1 GAIN0 COSCROSCBYPASSSD_+_+ DECEMBER2002 REVISEDAUGUST2010 FUNCTIONALBLOCKDIAGRAMABSOLUTEMAXIMUMRAT INGS overoperatingfree-airtemperaturerange(un lessotherwisenoted)(1)UNITS upplyvoltage.

4 VCC,PVCC to21 VLoadimpedance,ZL SHUTDOWN toVCC+ ,GAIN1 ,INP to7 VContinuoustotalpowerdissipationSeetheTh ermalInformationTableOperatingfree-airte mperaturerange,TA 40 C to85 COperatingjunctiontemperaturerange,TJ 40 C to150 CStoragetemperaturerange,Tstg 65 C to150 C(1) ,andfunctionaloperationofthedeviceatthes eoranyotherconditionsbeyondthoseindicate dunderRecommendedOperatingConditionsis 2002 2010,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback3 ProductFolderLink(s): tpa3001d1 tpa3001d1 SLOS398E DECEMBER2002 (1)(2)UNITSPWP(24 Pins) (top) (bottom) (1)Formoreinformationabouttraditionaland newthermalmetrics,seetheICPackageThermal Metricsapplicationreport,SPRA953.(2)Fort hermalestimatesofthisdevicebasedonPCBcop perarea, ,VCC,PVCCZL (1)818 VLoadimpedance, High-levelinputvoltage,VIHGAIN0,GAIN1,SH UTDOWN2 VLow-levelinputvoltage,VILGAIN0,GAIN1, ,TA 4085 C(1)TheTPA3001D1mustnotbeusedwithanyspea kerorload(includingspeakerwithoutputfilt er) 25 C,PVCC= VCC= 12V (unlessotherwisenoted)PARAMETERSTESTCOND ITIONSMINTYPMAXUNITVI= 0 V,AV= 12,18, (measured|VOS|mVdifferentially)VI= 0 V,AV= 36dB100 PSRRP owersupplyrejectionratioPVCC= 73dB|IIH|High-levelinputcurrentPVCC= 12V,VI= PVCC1mA|IIL|Low-levelinputcurrentPVCC= 12V,VI= 0 V1mASHUTDOWN= 2 V,noload815mAICCS upplycurrentSHUTDOWN= VCC, VCC= 18V,PO= 20W, 8 ICC(SD)Supplycurrent,shutdownmodeSHUTDOW N= 120k , COSC= 220pF250kHzrds(on)Outputtransistoronresi stance(total)IO= 1 A,TJ= 25 GAIN1= ,GAIN0= ,GAIN0= 2 2 V,GAIN0= 2 V,GAIN0= 2 VCC= 12V,TA= 25 C (unlessotherwisenoted)

5 PARAMETERTESTCONDITIONSMINTYPMAXUNITf = 1 kHz,RL= 4 +Nf = 1 kHz,RL= 8 9 POWf = 1 kHz,RL= 4 +Nf = 1 kHz,RL= 8 +NTotalharmonicdistortionplusnoisePO= 10W,RL= 4 , f = 1%20kHz4 SubmitDocumentationFeedbackCopyright 2002 2010,TexasInstrumentsIncorporatedProduct FolderLink(s) DECEMBER2002 REVISEDAUGUST2010 OPERATINGCHARACTERISTICS(continued)PVCC= VCC= 12V,TA= 25 C (unlessotherwisenoted)PARAMETERTESTCONDI TIONSMINTYPMAXUNITkSVRS upplyripplerejectionratiof = 1 kHz,C(BYPASS)= 1mF 70dBSNRS ignal-to-noiseratioPO= 10W,RL= 4 95dB86mV(rms)C(BYPASS)= 1mF,f = 20 Hzto22kHz,noweightingfilterused,gain= 12dB 81dBVVnNoiseoutputvoltage66mV(rms)C(BYPA SS)= 1mF,f = 20 Hzto22kHz,A-weightedfilter,gain= 12dB 84dBVZII nputimpedanceSeeTable1.> 23k OPERATINGCHARACTERISTICSPVCC= VCC= 18V,TA= 25 C (unlessotherwisenoted)PARAMETERTESTCONDI TIONSMINTYPMAXUNITf = 1 kHz,RL= 4 +Nf = 1 kHz,RL= 8 20 POWf = 1 kHz,RL= 4 +Nf = 1 kHz,RL= 8 16PO= 15W,RL= 8 , f = 20 Hzto20kHz1%THD+NTotalharmonicdistortionp lusnoisePO= 2 W,RL= 8 , f = 1%20kHzkSVRS upplyripplerejectionratiof = 1 kHz,CBYPASS= 1mF 70dBSNRS ignal-to-noiseratioPO= 15W,RL= 8 102dB86mV(rms)C(BYPASS)= 1mF,f = 20 Hzto20kHz,noweightingfilterused,gain= 12dB 81dBVVnNoiseoutputvoltage66mV(rms)C(BYPA SS)= 1mF,f = 20 Hzto22kHz,A-weightedfilter,gain= 12dB84dBVZII nputimpedanceSeeTable1.

6 >23k SPACERTYPICALCHARACTERISTICST ableofGraphsFIGUREE fficiencyvsOutputpower1 POMaximumoutputpowervsLoadimpedance2,3,4 ICCS upplycurrent5vsSupplyvoltageICC(SD)Shutd owncurrent67,8,9,10,11,12,13,14,15,16,vs Outputpower17,18 THD+NTotalharmonicdistortion+ noisevsFrequency19,20,21,22,23,24,25kSVR S upplyvoltagerejectionratio26 GainandphasevsFrequency27 CMRRC ommon-moderejectionratio28 VIOI nputoffsetvoltagevsCommon-modeinputvolta ge29 Copyright 2002 2010,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback5 ProductFolderLink(s):TPA3001D1PO Output POWER W010203040506070809002468101214 Efficiency %4 8 VCC = 12 VZL Load Impedance 579111315171921PO Maximum Output POWER WTA = 25 C,10% THD MaximumVCC = 18 VVCC = 15 VVCC = 12 45678910ZL Load Impedance 579111315171921PO Maximum Output POWER WVCC = 18 VVCC = 15 VVCC = 12 45678910TA = 45 CZL Load Impedance 579111315171921PO Maximum Output POWER WVCC = 18 VVCC = 15 VVCC = 12 45678910TA = 60 CTPA3001D1 SLOS398E DECEMBER2002 2002 2010,TexasInstrumentsIncorporatedProduct FolderLink(s).

7 TPA3001D16789101181012141618 VCC Supply Voltage VICC Supply Current mAVCC Supply Voltage V01234581012141618 ICC(SD) Shutdown Current ASHUTDOWN = VPO Output POWER W05101520 THD+N Total Harmonic Distortion + Noise % kHz20 kHz20 HzVCC = 18 VRL = 8 Gain = 12 dBPO Output POWER W05101520 THD+N Total Harmonic Distortion + Noise %VCC = 18 VRL = 8 Gain = 36 kHz20 kHz20 DECEMBER2002 + NOISETOTALHARMONICDISTORTION+ 2002 2010,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback7 ProductFolderLink(s):TPA3001D1PO Output POWER W05101520 THD+N Total Harmonic Distortion + Noise % = 15 VRL = 8 Gain = 12 dB20 Hz1 kHz20 kHzPO Output POWER W05101520 THD+N Total Harmonic Distortion + Noise %VCC = 15 VRL = 8 Gain = 36 kHz20 kHz20 HzPO Output POWER W0510 THD+N Total Harmonic Distortion + Noise %VCC = 15 VRL = 4 Gain = 12 kHz20 kHz20 HzPO Output POWER W0510 THD+N Total Harmonic Distortion + Noise %VCC = 15 VRL = 4 Gain = 36 kHz20 kHz20 HzTPA3001D1 SLOS398E DECEMBER2002 + NOISETOTALHARMONICDISTORTION+ + NOISETOTALHARMONICDISTORTION+ 2002 2010,TexasInstrumentsIncorporatedProduct FolderLink(s).

8 TPA3001D1PO Output POWER W051015 THD+N Total Harmonic Distortion + Noise % = 12 VRL = 8 Gain = 12 dB20 Hz1 kHz20 kHzPO Output POWER W051015 THD+N Total Harmonic Distortion + Noise %VCC = 12 VRL = 8 Gain = 36 Hz1 kHz20 kHzPO Output POWER W0510 THD+N Total Harmonic Distortion + Noise % = 12 VRL = 4 Gain = 12 dB20 Hz1 kHz20 kHzPO Output POWER W0510 THD+N Total Harmonic Distortion + Noise %VCC = 12 VRL = 4 Gain = 36 kHz20 kHz20 DECEMBER2002 REVISEDAUGUST2010 TOTALHARMONICDISTORTION+ NOISETOTALHARMONICDISTORTION+ + NOISETOTALHARMONICDISTORTION+ 2002 2010,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback9 ProductFolderLink(s):TPA3001D1PO Output POWER W0246 THD+N Total Harmonic Distortion + Noise %VCC = 8 VRL = 4 Gain = 12 kHz20 kHz20 HzPO Output POWER W0246 THD+N Total Harmonic Distortion + Noise %VCC = 8 VRL = 4 Gain = 36 kHz20 kHz20 Hzf Frequency Hz201001k10kTHD+N Total Harmonic Distortion + Noise % = 18 VRL = 8 PO = 500 mWPO = 2 WPO = 10 Wf Frequency Hz201001k10kTHD+N Total Harmonic Distortion + Noise % = 2 WPO = 10 WVCC = 15 VRL = 8 PO = 500 mWTPA3001D1 SLOS398E DECEMBER2002 + NOISETOTALHARMONICDISTORTION+ + NOISETOTALHARMONICDISTORTION+ 2002 2010,TexasInstrumentsIncorporatedProduct FolderLink(s).

9 TPA3001D1f Frequency Hz201001k10kTHD+N Total Harmonic Distortion + Noise % = 2 WPO = 10 WVCC = 15 VRL = 4 PO = 500 mWf Frequency Hz201001k10kTHD+N Total Harmonic Distortion + Noise % = 12 VRL = 8 PO = 5 WPO = 250 mWPO = 1 Wf Frequency Hz201001k10kTHD+N Total Harmonic Distortion + Noise % = 12 VRL = 4 PO = 2 WPO = 500 mWPO = Wf Frequency Hz201001k10kTHD+N Total Harmonic Distortion + Noise % = 8 VRL = 8 PO = 3 WPO = 250 mWPO = 1 DECEMBER2002 REVISEDAUGUST2010 TOTALHARMONICDISTORTION+ NOISETOTALHARMONICDISTORTION+ + NOISETOTALHARMONICDISTORTION+ 2002 2010,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback11 ProductFolderLink(s):TPA3001D1f Frequency Hz201001k10kTHD+N Total Harmonic Distortion + Noise % = 8 VRL = 4 PO = 5 WPO = 1 WPO = 250 mW 90 80 70 60 50f Frequency HzkSVR Supply Voltage Rejection Ratio dB201001k10k30kC(Bypass) = 1 FRL = 8 VDD = 15 VVCC = 8 Vf Frequency HzPhase 201001k100k10k3020100 10 20 30 40 8002468101214 Gain dBPhaseGainVCC = 8 VRL = 8 50 60 70 46 45 44 43 42 41 40f Frequency HzVCC = 8 V to 18 VRL = 8 CMRR Common-Mode Rejection Ratio dB201001k10k 20kTPA3001D1 SLOS398E DECEMBER2002 + 2002 2010,TexasInstrumentsIncorporatedProduct FolderLink(s): tpa3001d1 VIC Common-Mode Input Voltage V 4 3 2 = 8 V to 18 VVIO Input Offset Voltage DECEMBER2002 2002 2010,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback13 ProductFolderLink(s).

10 tpa3001d1 INNINPGAIN0 SHUTDOWNPGNDVCLAMPBSNPVCCOUTNOUTNPGNDVCC VREFBYPASSCOSCROSCAGNDAGNDBSPPVCCOUTPGAI N1 OUTPPGNDP owerPAD123456789101112242322212019181716 151413R351 FC61 FD1 VCCC12220 pFC111 FC31 FC41 FVCCL2(FerriteBead)L1(FerriteBead)C151 nFC141 nFD2R251 FC51 FC710 FC101 FIN IN+GAIN SELECTGAIN SELECTSHUTDOWNCONTROLU1 TPA3001D1L1, L2: Fair-Rite, Part Number 2512067007Y3D1, D2: Diodes, Inc., Part Number B130 VCCR1120 k tpa3001d1 SLOS398E DECEMBER2002 ,whichisusedintheTPA032D0xfamily,hasa differentialoutputwhereeachoutputis 180degreesoutofphaseandchangesfromground tothesupplyvoltage,VCC. Therefore,thedifferentialprefilteredoutp utvariesbetweenpositiveandnegativeVCC, wherefiltered50%dutycycleyields0V Notethatevenatanaverageof0 V acrosstheload(50%dutycycle),thecurrentto theloadis high,causinghighloss,thuscausinga 2002 2010,TexasInstrumentsIncorporatedProduct FolderLink(s):TPA3001D10 V 12 V+12 VCurrentOUTPD ifferential VoltageAcross DECEMBER2002 's OutputVoltageandCurrentWaveformsIntoanIn ductiveLoadWithNoInputTPA3001D1 MODULATIONSCHEMETheTPA3001D1usesa modulationschemethatstillhaseachoutputsw itchingfromgroundtoVCC.