TDA2822D
DUAL LOW-VOLTAGE POWER AMPLIFIER
SUPPLY VOLTAGE DOWN TO 1.8V
LOWCROSSOVER DISTORTION
LOW QUIESCENT CURRENT
BRIDGE OR STEREO CONFIGURATION
DESCRIPTION
The TDA2822D is a monolithic integrated circuit
in 8 lead (SO-8) package. It is intended for use as
dual audio power amplifier in portable cassette
players, radios and CD players
September 2003
APPLICATION CIRCUIT
SO8
ORDERING NUMBER: TDA2822D
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V
S
Supply Voltage
15
V
I
O
Peak Output
1
A
P
tot
Total Power Dissipation T
amb
= 50
C
0.5
W
T
stg
, T
j
Storage and Junction Temperature
-40 to 150
C
1/6
THERMAL DATA
Symbol
Description
Value
Unit
R
th j-amb
Thermal Resistance Junction-ambient
Max
200
C/W
PIN CONNECTION (Top view)
Figure 1: Stereo Application and Test Circuit
Figure 2: Bridge Application and Test Circuit
TDA2822D
2/6
ELECTRICAL CHARACTERISTICS (V
S
= 6V; T
amb
= 25C, unless otherwise specified.
STEREO (Test circuit of fig. 1).
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
V
S
Supply Voltage
1.8
15
V
I
d
Total Quiescent Drain Current
15
mA
V
O
Quiescent Output Voltage
2.7
V
V
S
= 3V
1.2
V
I
b
Input Bias Current
100
nA
P
O
Output Power (each channel)
(f = 1KHz, d = 10%)
V
S
= 9V
V
S
= 6V
R
L
= 32
V
S
= 4.5V
V
S
= 3V
V
S
= 2V
300
120
60
20
5
mW
R
L
= 16
V
S
= 6V
170
220
mW
R
L
= 8
V
S
= 6V
300
380
mW
R
L
= 4
V
S
= 4.5V
V
S
= 3V
320
110
mW
mW
d
Distortion
R
L
= 32
P
O
= 40mW
0.2
%
R
L
= 16
P
O
= 75mW
0.2
%
R
L
= 8
P
O
= 150mW
0.2
%
G
V
Closed Loop Voltage Gain
f = 1KHz
36
39
41
dB
G
V
Channel Balance
1
dB
R
i
Input Resistance
f = 1KHz
100
K
e
N
Total Input Noise
R
s
= 10k
B = Curve A
2
V
R
s
= 10k
B = 22Hz to 22KHz
2.5
V
SVR
Supply Voltage Rejection
f = 100Hz C1 = C2 = 100
F
24
30
dB
C
s
Channel Separation
f = 1KHz
50
dB
BRIDGE (Test circuit of fig.2)
V
S
Supply Voltage
1.8
15
V
I
d
Total Quiescent Drain Current
R
L
=
15
mA
V
os
Output Offset Voltage (between
the outputs)
R
L
= 8
80
mV
I
b
Input Bias Current
100
nA
P
O
Output Power
(f = 1KHz, d = 10%)
V
S
= 9V
V
S
= 6V
R
L
= 32
V
S
= 4.5V
V
S
= 3V
V
S
= 2V
320
50
1000
400
200
65
8
mW
R
L
= 16
V
S
= 6V
RL = 16W
V
S
= 3V
800
120
mW
mW
R
L
= 8
V
S
= 4.5V
RL = 8W
V
S
= 3V
700
220
mW
mW
R
L
= 4
V
S
= 3V
RL = 4W
V
S
= 2V
350
80
mW
mW
d
Distortion
R
L
= 8
P
O
= 0.5W f = 1KHz
0.2
%
G
V
Closed Loop Voltage Gain
f = 1KHz
39
dB
R
i
Input Resistance
f = 1KHz
100
K
e
N
Total Input Noise
R
s
= 10k
B = Curve A
2.5
V
R
s
= 10k
B = 22Hz to 22KHz
3
V
SVR
Supply Voltage Rejection
f = 100Hz
40
dB
B
Power Bandwidth (-3dB)
R
L
= 8
P
O
= 1W
120
KHz
TDA2822D
3/6
Figure 3: Supply Voltage Rejection vs. Fre-
quency
Figure 4: Output Power vs. Supply Voltage (THD
= 10%, f = 1KHz Stereo)
Figure 5: Total Power Dissipation vs. Output
Power (Bridge)
Figure 6: Total Power Dissipation vs. Output
Power (Bridge)
TDA2822D
4/6
DIM.
mm
inch
MIN.
TYP.
MAX.
MIN.
TYP.
MAX.
A
1.75
0.069
a1
0.1
0.25
0.004
0.010
a2
1.65
0.065
a3
0.65
0.85
0.026
0.033
b
0.35
0.48
0.014
0.019
b1
0.19
0.25
0.007
0.010
C
0.25
0.5
0.010
0.020
c1
45
(typ.)
D (1)
4.8
5.0
0.189
0.197
E
5.8
6.2
0.228
0.244
e
1.27
0.050
e3
3.81
0.150
F (1)
3.8
4.0
0.15
0.157
L
0.4
1.27
0.016
0.050
M
0.6
0.024
S
8
(max.)
(1) D and F do not include mold flash or protrusions. Mold flash or
potrusions shall not exceed 0.15mm (.006inch).
SO8
OUTLINE AND
MECHANICAL DATA
TDA2822D
5/6
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granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are
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TDA2822D
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