®
TDA2030
14WHi-FiAUDIOAMPLIFIER
DESCRIPTION
TheTDA2030isamonolithicintegratedcircuitinPentawatt®package,intendedforuseasalowfrequencyclassABamplifier.Typicallyitprovides14Woutputpower(d=0.5%)at14V/4Ω;at±14Vor28V,theguaranteedoutputpoweris12Wona4Ωloadand8Wona8Ω(DIN45500).
TheTDA2030provideshighoutputcurrentandhasverylowharmonicandcross-overdistortion.
Furtherthedeviceincorporatesanoriginal(andpatented)shortcircuitprotectionsystemcompris-inganarrangementforautomaticallylimitingthedissipatedpowersoastokeeptheworkingpointoftheoutputtransistorswithintheirsafeoperatingarea.Aconventionalthermalshut-downsystemisalsoincluded.
ABSOLUTEMAXIMUMRATINGS
SymbolVsViViIoPtotTstg,Tj
SupplyvoltageInputvoltage
Differentialinputvoltage
Outputpeakcurrent(internallylimited)PowerdissipationatTcase=90°CStoprageandjunctiontemperature
Parameter
Pentawatt
ORDERINGNUMBERS:TDA2030H
TDA2030V
Value±18(36)Vs±153.520-40to150
UnitVVAW°C
TYPICALAPPLICATION
June1998
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TDA2030
PINCONNECTION(topview)
+VS
OUTPUT-VS
INVERTINGINPUT
NONINVERTINGINPUT
TESTCIRCUIT
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TDA2030
THERMALDATA
SymbolRthj-case
Parameter
Thermalresistancejunction-case
max
Value3
Unit°C/W
ELECTRICALCHARACTERISTICS(Refertothetestcircuit,Vs=±14V,Tamb=25°Cunlessotherwisespecified)forsingleSupplyrefertofig.15Vs=28V
SymbolVsIdIbVosIosPo
Parameter
SupplyvoltageQuiescentdraincurrentInputbiascurrentInputoffsetvoltageInputoffsetcurrentOutputpower
d=0.5%Gv=30dBf=40to15,000HzRL=4ΩRL=8Ωd=10%f=1KHzRL=4ΩRL=8Ω
d
Distortion
Gv=30dB
1811
WW
Vs=±18V(Vs=36V)
Testconditions
Min.±612
400.2±2±20Typ.
Max.±1836602±20±200
UnitVmAµAmVnA
128149WW
Po=0.1to12WRL=4ΩGv=30dBf=40to15,000HzPo=0.1to8WRL=8ΩGv=30dBf=40to15,000Hz
0.20.5%
0.110to140,0000.5
590
0.5%HzMΩdB
BRiGvGveNiNSVR
PowerBandwidth(-3dB)
Inputresistance(pin1)Voltagegain(openloop)Voltagegain(closedloop)InputnoisevoltageInputnoisecurrentSupplyvoltagerejection
Gv=30dBPo=12W
RL=4Ω
f=1kHz
B=22Hzto22KHz
29.530380
30.510200
dBµVpAdB
RL=4ΩGv=30dBRg=22kΩVripple=0.5Vefffripple=100HzPo=14WPo=W
RL=4ΩRL=8Ω
4050
IdDraincurrent
900500mAmA
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TDA2030
Figure1.Outputpowervs.supplyvoltage
Figure2.Outputpowervs.supplyvoltage
Figure3.Distortionvs.outputpower
Figure4.Distortionvs.outputpowerFigure5.Distortionvs.outputpowerFigure6.Distortionvs.frequency
Figure7.Distortionvs.frequency
Figure8.Frequencyre-sponsewithdifferentvaluesoftherolloffcapacitorC8(seefig.13)
Figure9.Quiescentcurrentvs.supplyvoltage
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TDA2030
Figure10.Supplyvoltagerejectionvs.voltagegain
Figure11.Powerdissipa-tionandefficiencyvs.outputpower
Figure12.Maximumpowerdissipationvs.supplyvolt-age(sinewaveoperation)
APPLICATIONINFORMATIONFigure13.Typicalamplifierwithsplitpowersupply
Figure14.P.C.boardandcomponentlayoutforthecircuitoffig.13(1:1scale)
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TDA2030
APPLICATIONINFORMATION(continued)
Figure15.TypicalamplifierwithsinglepowersupplyFigure16.P.C.boardandcomponentlayoutforthecircuitoffig.15(1:1scale)
Figure17.Bridgeamplifierconfigurationwithsplitpowersupply(Po=28W,Vs=±14V)
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TDA2030
PRACTICALCONSIDERATIONS
Printedcircuitboard
ThelayoutshowninFig.16shouldbeadoptedbythedesigners.Ifdifferentlayoutsareused,thegroundpointsofinput1andinput2mustbewelldecoupledfromthegroundreturnoftheoutputinwhichahighcurrentflows.
Assemblysuggestion
Noelectricalisolationisneededbetweenthe
packageandtheheatsinkwithsinglesupplyvoltageconfiguration.
Applicationsuggestions
Therecommendedvaluesofthecomponentsarethoseshownonapplicationcircuitoffig.13.
Differentvaluescanbeused.Thefollowingtablecanhelpthedesigner.
Component
R1R2R3R4
Recomm.value22kΩ680Ω22kΩ1Ω
Purpose
Closedloopgainsetting
Closedloopgainsetting
Noninvertinginputbiasing
Frequencystability
Largerthan
recommendedvalueIncreaseofgainDecreaseofgain(*)Increaseofinputimpedance
Dangerofosccilat.athighfrequencieswithinduct.loadsPoorhighfrequenciesattenuation
SmallerthanrecommendedvalueDecreaseofgain(*)IncreaseofgainDecreaseofinputimpedance
R5C1C2C3,C4C5,C6C7C8D1,D2
≅
≅3R21µF22µF0.1µF100µF0.22µF12πBR11N4001
UpperfrequencycutoffInputDCdecouplingInvertingDCdecouplingSupplyvoltagebypassSupplyvoltagebypass
FrequencystabilityUpperfrequencycutoff
DangerofoscillationIncreaseoflowfrequenciescutoffIncreaseoflowfrequenciescutoffDangerofoscillationDangerofoscillation
Dangerofoscillation
SmallerbandwidthLargerbandwidth
Toprotectthedeviceagainstoutputvoltagespikes
(*)Closedloopgainmustbehigherthan24dB
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TDA2030
SINGLESUPPLYAPPLICATION
Component
R1R2R3R4
Recomm.value150kΩ4.7kΩ100kΩ1Ω
Purpose
Closedloopgainsetting
Closedloopgainsetting
Noninvertinginputbiasing
Frequencystability
Largerthan
recommendedvalueIncreaseofgainDecreaseofgain(*)Increaseofinputimpedance
Dangerofosccilat.athighfrequencieswithinduct.loads
PowerConsumptionIncreaseoflowfrequenciescutoffIncreaseoflowfrequenciescutoffDangerofoscillationDangerofoscillation
Dangerofoscillation
Smallerbandwidth
LargerbandwidthSmallerthanrecommendedvalueDecreaseofgain(*)IncreaseofgainDecreaseofinputimpedance
RA/RBC1C2C3C5C7C8D1,D2
≅
100kΩ1µF22µF0.1µF100µF0.22µF12πBR11N4001
NoninvertinginputBiasingInputDCdecouplingInvertingDCdecouplingSupplyvoltagebypassSupplyvoltagebypass
FrequencystabilityUpperfrequencycutoff
Toprotectthedeviceagainstoutputvoltagespikes
(*)Closedloopgainmustbehigherthan24dB
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TDA2030
SHORTCIRCUITPROTECTION
TheTDA2030hasanoriginalcircuitwhichlimitsthecurrentoftheoutputtransistors.Fig.18showsthatthemaximumoutputcurrentisafunctionofthecollectoremittervoltage;hencetheoutputtransis-torsworkwithintheirsafeoperatingarea(Fig.2).Thisfunctioncanthereforebeconsideredasbeing
peakpowerlimitingratherthansimplecurrentlim-iting.
Itreducesthepossibilitythatthedevicegetsdam-agedduringanaccidentalshortcircuitfromACoutputtoground.
Figure18.Maximumoutputcurrentvs.voltage[VCEsat]acrosseachoutputtransistor
Figure19.Safeoperatingareaandcollectorcharacteristicsoftheprotectedpowertransistor
THERMALSHUT-DOWN
Thepresenceofathermallimitingcircuitoffersthefollowingadvantages:
1.Anoverloadontheoutput(evenifitisperma-nent),oranabovelimitambienttemperaturecanbeeasilysupportedsincetheTjcannotbehigherthan150°C.2.Theheatsinkcanhaveasmallerfactorofsafetycomparedwiththatofaconventionalcircuit.Thereisnopossibilityofdevicedamageduetohighjunctiontemperature.Ifforanyreason,the
junctiontemperatureincreasesupto150°C,thethermalshut-downsimplyreducesthepowerdissipationatthecurrentconsumption.Themaximumallowablepowerdissipationde-pendsuponthesizeoftheexternalheatsink(i.e.itsthermalresistance);fig.22showsthisdissipablepowerasafunctionofambienttemperaturefordifferentthermalresistance.
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TDA2030
Figure20.Outputpoweranddraincurrentvs.casetemperature(RL=4Ω)
Figure21.Outputpoweranddraincurrentvs.casetemperature(RL=8Ω)
Figure22.Maximumallowablepowerdissipationvs.ambienttemperature
Figure23.Exampleofheat-sink
Dimension:suggestion.
Thefollowingtableshowsthelengththattheheatsinkinfig.23musthaveforseveralvaluesofPtotandRth.
Ptot(W)
Lengthofheatsink
1260
840
630
(mm)
Rthofheatsink
(°C/W)
4.26.28.3
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TDA2030
PENTAWATTPACKAGEMECHANICALDATA
DIM.ACDD1EE1FF1GG1H2H3LL1L2L3L4L5L6L7L9MM1V4Dia
mm
MIN.
TYP.
MAX.4.81.372.81.350.551.191.051.43.6710.410.418.1515.9521.622.71.29315.86..754.25
40°(typ.)
3.65
3.85
0.144
0.152
MIN.
inchTYP.
MAX.0.10.0540.1100.0530.0220.0470.0410.0550.1420.2760.4090.4090.7150.6280.8500.40.0510.1180.6220.2600.1870.167
2.41.20.350.760.813.26.610.0517.5515.5521.222.32.615.1.233.75
3.46.8
0.0940.0470.0140.0300.0310.0390.1260.2600.3960.6910.6120.8310.8780.1020.5940.2360.1670.148
0.1340.268
17.8515.7521.422.50.7030.6200.8430.886
0.24.540.0080.1770.157
LL1L8
V
V1
VR
A
B
C
D1
L5
L2L3
D
RV4
H2
FE
V4
V3
E
R
M1
VV
M
E1
H3H1
Dia.L7
L6
RESINBETWEEN
LEADS
F1
FH2
GG1
V4
L9
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TDA2030
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