STMICROELECTRONICS TDA2822_03

TDA2822
®
DUAL POWER AMPLIFIER
..
..
SUPPLY VOLTAGE DOWN TO 3 V
LOW CROSSOVER DISTORSION
LOW QUIESCENT CURRENT
BRIDGE OR STEREO CONFIGURATION
POWERDIP
(Plastic 12+2+2)
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ORDERING NUMBER : TDA2822
DESCRIPTION
The TDA2822 is a monolithic integrated circuit in
12+2+2 powerdip, intended for use as dual audio
power amplifier in portable radios and TS sets.
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TYPICAL APPLICATION CIRCUIT (STEREO)
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September 2003
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TDA2822
PIN CONNECTION (top view)
INPUT+(1)
1
16
INPUT+(2)
N.C.
2
15
N.C.
INPUT-(1)
3
14
INPUT-(2)
GND
4
13
GND
GND
5
12
GND
OUTPUT(1)
6
11
OUTPUT(2)
N.C.
7
10
N.C.
+VS
8
9
N.C.
D95AU321
SCHEMATIC DIAGRAM
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ABSOLUTE MAXIMUM RATINGS
Symbol
Vs
Io
Ptot
Tstg, Tj
2/11
Value
Unit
Supply Voltage
Output Peak Current
Parameter
15
1.5
V
A
Total Power Dissipation at Tamb = 50 °C
at Tcase = 70 °C
Storage and Junction Temperature
1.25
4
W
W
– 40 to 150
°C
TDA2822
THERMAL DATA
Symbol
Rth j-amb
Rth j-case
Parameter
Thermal Resistance Junction-ambient
Thermal Resistance Junction-pins
Max
Max
Value
Unit
80
20
°C/W
°C/W
ELECTRICAL CHARACTERISTICS (Vs = 6 V, Tamb = 25 °C, unless otherwise specified)
STEREO (test circuit of fig. 1)
Symbol
Parameter
Test Condition
Vs
Vc
Supply Voltage
Quiescent Output Voltage
Id
Ib
Quiescent Drain Current
Po
Output Power
(each channel)
d = 10 %
Vs = 9 V
Vs = 6 V
Vs = 4.5 V
Closed Loop Voltage Gain
Input Resistance
Total Input Noise
Ri
N
Vs = 9 V
Vs = 6 V
f = 1 kHz
f = 1 kHz
36
100
39
Rs = 10 kΩ
B = 22 Hz to 22 kHz
Curve A
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Vos
Output Offset Voltage
RL = 8 Ω
Gv
Ri
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Closed Loop Voltage Gain
Input Resistance
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SVR
Total Input Noise
Supply Voltage Rejection
mA
W
W
W
RL = ∞
Distortion (f = 1 kHz)
12
1.7
0.65
0.32
Supply Voltage
Quiescent Drain Current
d
V
V
1.3
0.45
f = 1 kHz
RL = 4 Ω
RL = 4 Ω
RL = 4 Ω
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Rg = 10 kΩ f = 1 kHz
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d = 10 % f = 1 kHz
Vs = 9 V RL = 8 Ω
Vs = 6 V RL = 8 Ω
Vs = 4.5 V RL = 4 Ω
RL = 8 Ω
f = 1 kHz
f = 1 kHz
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24
Po = 0.5 W
kΩ
30
50
dB
3
2.7
0.9
dB
µV
µV
dB
2.5
2
f = 100 Hz
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nA
Vs
Id
Input Bias Current
Output Power
Unit
15
4
2.7
6
Supply Voltage Rejection
Channel Separation
Ib
Max.
100
SVR
CS
Po
Typ.
3
Input Bias Current
Gv
e
Min.
6
15
12
V
mA
10
60
mV
100
nA
3.2
1.35
1
W
W
W
0.2
%
39
dB
100
kΩ
Rs = 10 kΩ
B = 22 Hz to 22 kHz
Curve A
3
2.5
f = 100 Hz
40
µV
µV
dB
3/11
TDA2822
Figure 1 : Test Circuit (stereo).
Figure 2 : P.C. Board and Components Layout of the Circuit of Figure 1 (1:1 scale).
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TDA2822
Figure 3 : Test Circuit (bridge).
Figure 4 : P.C. Board and Components Layout of the Circuit of Figure 3 (1:1 scale).
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TDA2822
Figure 5 : Output Power vs. Supply Voltage
(Stereo).
Figure 6 : Output Power vs. Supply Voltage
(Bridge).
Figure 7 : Distorsion vs. Output Power (Bridge).
Figure 8 : Distorsion vs. Output Power (Bridge).
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Figure 9 : Supply Voltage Rejection vs.
Frequency.
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Figure 10 : Quiescent Current vs. Supply Voltage.
TDA2822
Figure 11 : Total Power Dissipation vs. Output
Power (Stereo).
Figure 12 : Total Power Dissipation vs. Output
Power (Bridge).
Figure 13 : Total Power Dissipation vs. Output
Power (Bridge).
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TDA2822
Figure 14 : Application Circuit for Portable Radios.
MOUNTING INSTRUCTION
The Rth j-amb of the TDA2822 can be reduced by soldering the GND pins to a suitable copper area of the
printed circuit board (Figure 15) or to an external
heatsink (Figure 16).
The diagram of Figure 17 shows the maximum dissipable power Ptot and the Rth j-amb as a function of
the side "∂" of two equal square copper areas having
a thickness of 35 µ (1.4 mils).
(s)
Figure 15 : Example of P.C. Board Copper Area
which is used as Heatsink.
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During soldering the pins temperature must not exceed 260 °C and the soldering time must not be
longer than 12 seconds.
The external heatsink or printed circuit copper area
must be connected to electrical ground.
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Figure 16 : External Heatsink Mounting Example.
TDA2822
Figure 6 : Maximum Dissipable Power and
Junction to Ambient Thermal
Resistance vs. Side "∂".
Figure 7 : Maximum Allowable Power Dissipation
vs. Ambient Temperature.
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TDA2822
mm
DIM.
MIN.
a1
0.51
B
0.85
TYP.
inch
MAX.
MIN.
TYP.
0.020
1.40
b
0.033
0.055
0.50
b1
MAX.
OUTLINE AND
MECHANICAL DATA
0.38
0.020
0.50
D
0.015
0.020
20.0
0.787
E
8.80
0.346
e
2.54
0.100
e3
17.78
0.700
F
7.10
0.280
I
5.10
0.201
L
3.30
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0.130
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Powerdip 16
Z
1.27
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TDA2822
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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 by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this
publication are subject to change 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.
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All other names are the property of their respective owners
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