TDA2822D.pdf

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DUAL LOW-VOLTAGE POWER AMPLIFIER
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
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
APPLICATION CIRCUIT
May 1991
1/6
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TDA2822D
PIN CONNECTION (Top view)
THERMAL DATA
Symbol
Description
Value
Unit
R th j-amb
Thermal Resistance Junction-ambient
Max
200
C/W
Figure 1: Stereo Application and Test Circuit
Figure 2: Bridge Application and Test Circuit
2/6
°
20664593.003.png
TDA2822D
ELECTRICAL CHARACTERISTICS (V S = 6V; T amb =25 ° C, 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
300
120
60
20
5
R L =32
W
V S = 4.5V
V S =3V
V S =2V
mW
R L =16
W
V S = 6V
170
220
mW
R L =8
W
V S = 6V
300
380
mW
R L =4
W
V S = 4.5V
V S =3V
320
110
mW
mW
d
Distortion
R L =32
W
P O = 40mW
0.2
%
R L =16
W
P O = 75mW
0.2
%
R L =8
W
P O = 150mW
0.2
%
G V
Closed Loop Voltage Gain
f = 1KHz
36
39
41
dB
D
G V
Channel Balance
±
1
dB
i
Input Resistance
f = 1KHz
100
K
W
e N
Total Input Noise
R s = 10k
W
B = Curve A
2
m
V
R s = 10k
W
B = 22Hz to 22KHz
2.5
m
V
SVR
Supply Voltage Rejection
f = 100Hz
C1 = C2 = 100
m
F24
30
dB
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 =
8
15
mA
V os
Output Offset Voltage (between
the outputs)
R L =8
W
±
80
mV
I b
Input Bias Current
100
nA
P O
Output Power
(f = 1KHz, d = 10%)
V S =9V
V S =6V
1000
400
200
65
8
320
R L =32
W
V S = 4.5V
V S =3V
V S =2V
mW
50
V S =6V
RL = 16W V S =3V
W
800
120
mW
mW
V S = 4.5V
RL = 8W V S =3V
W
700
220
mW
mW
R L =4
W
V S =3V
350
80
mW
mW
RL = 4W
V S =2V
d
Distortion
R L =8
W
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 W
e N
Total Input Noise
R s = 10k
W
B = Curve A
2.5
m
V
R s = 10k
W
B = 22Hz to 22KHz
3
m
V
SVR
Supply Voltage Rejection
f = 100Hz
40
dB
B
Power Bandwidth (-3dB)
R L =8
W
P O = 1W
120
KHz
3/6
R L =16
R L =8
20664593.004.png
TDA2822D
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)
4/6
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TDA2822D
SO8 PACKAGE MECHANICAL DATA
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
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
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.)
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