TDA2007A.PDF

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6 + 6W SHORT-CIRCUIT PROTECTED STEREO AMPLIFIER
TDA2007A
6 + 6W STEREO AMPLIFIER
. THERMAL OVERLOAD PROTECTION
DESCRIPTION
SIP9
The TDA2007A is a class AB dual Audio power am-
plifier assembled in single in line 9 pins package,
specially designed for stereo application in music
centers TV receivers and portable radios.
ORDERING NUMBER : TDA2007A
STEREO TEST CIRCUIT
May 1991
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. HIGH OUTPUT POWER
. HIGH CURRENT CAPABILITY
. AC SHORT CIRCUIT PROTECTION
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TDA2007A
PIN CONNECTION (top view)
SCHEMATIC DIAGRAM
THERMAL DATA
Symbol
Parameter
Value
Unit
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TDA2007A
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V S
Supply Voltage
28
V
I O
Output Peak Current (repetitive f
.
20Hz)
3
A
I O
Output Peak Current (non repetitive t = 100
m
s)
3.5
A
P tot
Power Dissipation at T case =70
°
C
10
W
T stg ,T j Storage and Junction Temperature
–40 to 150
°
C
ELECTRICALCHARACTERISTICS (referto the stereoapplicationcircuit,T amb =25 ° C, V S = 18V,
G V =36dB, unlessotherwisespecified)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
V S
Supply Voltage
8
26
V
V O
Quiescent Output Voltage
8.5
V
I d
Total Quiescent Drain Curent
50
90
mA
P O
Output Power
(each channel)
f = 100Hz to 6KHz
d = 0.5%
V S = 18V R L =4
W
V S = 22V R L =8 W
5.5
5.5
6
6
W
W
d
Distortion
(each channel)
f = 1KHz, V S = 18V, R L =4
W
0.1
%
P O = 100mW to 3W
f = 1KHz, V S = 22V, R L =8
W
0.05
%
P O = 100mW to 3W
CT
Cross Talk ( ooo )
R L =
8
,R g = 10K
W
f = 1KHz
f = 10KHz
50
40
60
50
dB
dB
V i
Input Saturation Voltage (rms)
300
mV
R i
Input Resistance
f = 1KHz
70
200
K
W
f L
Low Frequency Roll Off (–3dB) R L =4
W
, C10 = C11 = 2200
m
F
40
Hz
f H
Low Frequency Roll Off (–3dB)
80
KHz
G V
Voltage Gain (closed loop)
f = 1KHz
35.5
36
36.5
dB
D
G V
Closed Loop Gain Matching
0.5
dB
e N
Total Input Noise Voltage
R g =10k
W
( o )
1.5
m
V
R g =10k
W
( oo )
2.5
8
m
V
SVR
Supply Voltage Rejection
(each channel)
W
f ripple = 100Hz, V ripple = 0.5V
55
dB
T j
Thermal Shut-down Junction
Temperature
145
°
C
(
°
) Curve A.
°°
) 22Hz to 22KHz.
3/7
R g =10K
(
11044815.004.png
TDA2007A
Figure 1 : Stereo Test Circuit (G V =36dB).
Figure 2 : P.C. Board and Components layout of the Circuit of Fig.1 (1 : 1 scale).
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TDA2007A
APPLICATION SUGGESTION
The recommended values of the components are those shown on application circuit of fig.1. Different values
can be used ; the following table can help the designer.
Component
Recommended value
Purpose
Larger Than
Smaller Than
R1, R3
1.3K
W
Close Loop Gain
Setting (*)
Increase of Gain
Decrease of Gain
R2 and R4
18
W
Decrease of Gain
Increase of gain
R5 and R6
1
W
Frequency stability Danger of
Oscillation at High
Frequency with
Inductive Load
C1 and C2
2.2
m
F
Input DC Decoupling High Turn-on Delay High Turn-on Pop
Higher Low
Frequency
Cutoff. Increase of
Noise
C3
22
m
F
Ripple Rejection
Better SVR Increase
of the Switch-on
Time
Degradation of SVR
C6 and C7
220
m
F
Feedback Input DC
Decoupling
C8 and C9
0.1
m
F
Frequency Stability
Danger of Oscillation
(*) The closed loop gain must be higher than 26 dB.
APPLICATION INFORMATION
Figure3: 12 W Bridge Amplifier (d = 0.5%, G V =40dB).
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