Document
®
..... OPERATING VOLTAGE 1.8 TO 15 V LOW QUIESCENT CURRENT HIGH POWER CAPABILITY LOW CROSSOVER DISTORTION SOFT CLIPPING
TDA7231A
1.6W AUDIO AMPLIFIER
Product(s)DESCRIPTION teThe TDA7231A is a monolithic integrated circuit in le4 + 4 lead minidip package. It is intended for use as
class AB power amplifier with wide range of supply
sovoltage in portable radios, cassette recorders and bplayers, etc. Obsolete Product(s) - OPIN CONNECTION
MINIDIP (4+4) ORDERING NUMBER : TDA7231A
September 2003
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TDA7231A
ABSOLUTE MAXIMUM RATINGS
Symbol Vs Ptot
Io Tstg, Tj
Parameter
Supply Voltage
Total Power Dissipation at Tamb = 50 °C at Tcase = 70 °C
Output Peak Current Storage and Junction Temperature
Value 16 1.25 4
1 – 40 to 150
Unit V W W
A °C
THERMAL DATA
Symbol Rth j-amb Rth j-pins
Parameter Thermal Resistance Junction-ambient Thermal Resistance Junction-pins
Max. Max.
Value 80 15
Unit °C/W °C/W
ELECTRICAL CHARACTERISTICS (Vs = 6 V, Tamb = 25 °C, unless otherwise specified)
Symbol
t(s)Vs
Vo
Parameter Supply Voltage Quiescent Out Voltage
ducId Quiescent Drain Current roIb Input Bias Current PPo Output Power
bsoleted Distortion ) - OGv Closed Loop Voltage Gain t(sRin Input Resistance uceN Total Input Noise
Test Conditions
VS = 6 V VS = 3 V
d = 10% Vs = 12V Vs = 9V Vs = 6V Vs = 6V Vs = 3V Vs = 3V
Po = 0.2 W f = 1 kHz RL = 8 Ω
f = 1kHz
RL = 8Ω RL = 4Ω RL = 8Ω RL = 4Ω RL = 4Ω RL = 8Ω
f = 1kHz Rs = 10kΩ B = Curve A
B = 22Hz to 22kHz
Min. 1.8
Typ.
2.7 1.2 3.6 100
1.8 1.6 0.4 0.7 110 70
0.3
Max. 15
9
38
100
2 3
Unit V V V mA nA
W W W W mW mW
%
dB kΩ µV µV
Obsolete ProdFigure 1 : Test and Application Circuit
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Figure 2 : P.C. Board and Components Layout of the figure 1 (1:1 scale)
TDA7231A
ct(s)Figure 3 : Output Power versus Supply Voltage
Figure 4 : Quiescent Current versus Supply Voltage
roduct(s) - Obsolete ProduFigure 5 : Quiescent Output Voltage versus Obsolete PSupply Voltage
Figure 6 : Supply Voltage Rejection versus Frequency
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TDA7231A
DIM.
MIN.
mm TYP. MAX. MIN.
inch TYP. MAX.
A 3.3
0.130
OUTLINE AND MECHANICAL DATA
a1 0.7
0.028
B 1.39
1.65 0.055
0.065
B1 0.91
1.04 0.036
0.041
b 0.5
0.020
b1 0.38
0.5 0.015
0.020
D 9.8 0.386
E 8.8
0.346
e 2.54
0.100
e3 7.62
0.300
t(s)e4 7.62
0.300
cF 7.1 0.280
duI 4.8 0.189
roL 3.3
0.130
Obsolete Product(s) - Obsolete PZ 0.44
1.6 0.017
0.063
PowerMinidip
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TDA7231A
solete Product(s) - Obsolete Product(s)Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted
bby implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to Ochange without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics.
All other names are the property of their respective owners © 2003 STMicroelectronics - All rights reserved STMicroelectronics GROUP OF COMPANIES
Australia – Belgium - Brazil - Canada - China – Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States www.st.com.
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