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TDA7231N/a35avai1.6W AUDIO AMPLIFIER


TDA7231 ,1.6W AUDIO AMPLIFIERTDA7231A1.6W AUDIO AMPLIFIER.OPERATING VOLTAGE 1.8 TO 15 V.LOW QUIESCENT CURRENT.HIGH POWER CAPABIL ..
TDA7231A ,1.6W AUDIO AMPLIFIERTDA7231A1.6W AUDIO AMPLIFIER.OPERATING VOLTAGE 1.8 TO 15 V.LOW QUIESCENT CURRENT.HIGH POWER CAPABIL ..
TDA7231A ,1.6W AUDIO AMPLIFIERTDA7231A1.6W AUDIO AMPLIFIER.OPERATING VOLTAGE 1.8 TO 15 V.LOW QUIESCENT CURRENT.HIGH POWER CAPABIL ..
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TDA7231
1.6W AUDIO AMPLIFIER
TDA7231A
1.6W AUDIO AMPLIFIER
PIN CONNECTION
MINIDIP (4+4)
ORDERING NUMBER:
TDA7231A OPERATING VOLTAGE1.8 TO15V. LOW QUIESCENT CURRENT. HIGH POWER CAPABILITY. LOW CROSSOVER DISTORTION. SOFT CLIPPING
DESCRIPTION

The TDA7231Aisa monolithicintegrated circuitin+4 lead minidip package.Itis intended for use class AB power amplifier with wide rangeof
supply voltagein portable radios, cassette re-
corders and players, etc.
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
Supply Voltage 16 V
Ptot Total Power Dissipationat Tamb =50°C Tcase =70°C
1.25 Output Peak Current 1 A
Tstg,Tj Storage and Junction Temperature –40to 150 °C
THERMAL DATA
Symbol Parameter Value Unit

Rthj-amb Thermal Resistance Junction-ambient Max. 80 °C/W
Rth j-pins Thermal Resistance Junction-pins Max. 15 °C/W
ELECTRICAL CHARACTERISTICS
(Vs= 6V, Tamb=25 °C, unless otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Supply Voltage 1.8 15 V Quiescent Out Voltage VS =6V =3V
1.2 Quiescent Drain Current 3.6 9 mA Input Bias Current 100 nA Output Power d= 10% f= 1kHz= 12V RL =8Ω =9V RL =4Ω =6V RL =8Ω =6V RL =4Ω =3V RL =4Ω =3V RL =8Ω
110 Distortion Po= 0.2W=1 kHz =8Ω
0.3 % Closed Loop Voltage Gain 38 dB
Rin Input Resistance f= 1kHz 100 kΩ Total Input Noise Rs= 10kΩ B= CurveA= 22Hzto 22kHz
SVR Supply Voltage Rejection f= 100Hz,Rg= 10kΩ 24 33 dB
Figure1:
Test and Application Circuit
TDA7231A
Figure2: P.C.Board and ComponentsLayoutof the figure1 (1:1 scale)
Figure3:
Output Power versus Supply Voltage
Figure5:
Quiescent Output Voltage versus
Supply Voltage
Figure4:
Quiescent Current versus
Supply Voltage
Figure6:
Supply Voltage Rejection versus
Frequency
TDA7231A
MINIDIP PACKAGE MECHANICAL DATA
DIM. mm inch
MIN. TYP. MAX. MIN. TYP. MAX.
3.3 0.130 0.7 0.028 1.39 1.65 0.055 0.065 0.91 1.04 0.036 0.041 0.5 0.020 0.38 0.5 0.015 0.020 9.8 0.386 8.8 0.346 2.54 0.100 7.62 0.300 7.62 0.300 7.1 0.280 4.8 0.189 3.3 0.130 0.44 1.6 0.017 0.063
TDA7231A
Information furnishedis believedtobe accurateand reliable. However, SGS-THOMSON Microelectronics assumesno responsibilityforthe
consequencesofuseof such informationnorfor any infringementof patentsor other rightsof thirdparties which may resultfromits use.No
licenseis granted byimplicationor otherwise underany patentor patent rights ofSGS-THOMSON Microelectronics. Specifications mentioned this publication are subjectto change without notice. This publication supersedes and replacesall information previously supplied.
SGS-THOMSONMicroelectronics productsare notauthorizedfor useascritical components inlife supportdevicesor systems without express
written approvalof SGS-THOMSON Microelectronics. 1995 SGS-THOMSON Microelectronics-All RightsReserved
SGS-THOMSON Microelectronics GROUPOF COMPANIES
Australia- Brazil- France- Germany- Hong Kong- Italy -Japan- Korea- Malaysia- Malta- Morocco- TheNetherlands- Singa-
pore- Spain- Sweden- Switzerland- Taiwan- Thaliand- United Kingdom- U.S.A.
TDA7231A
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