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TDA2004R

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17
Electrical specifications TDA2004R
10/17 Doc ID 17614 Rev 2
Figure 10. Distortion vs. frequency, R
L
= 1.6
and 3.2
Figure 11. Supply voltage rejection vs. C3
Figure 12. Supply voltage rejection vs.
frequency
Figure 13. Supply voltage rejection vs. C2 and
C3, G
V
= 390/1
Figure 14. Supply voltage rejection vs. C2 and
C3, G
V
= 1000/10
Figure 15. Gain vs. input sensitivity
SVR
(dB)
10
20
50
60
40
30
10 12 C
3
(µF)13
V
s
= 14.4 V
f
ripple
= 100 kHz
V
ripple
= 0.5 V
G
v
= 50 dB
R
g
= 10 kΩ
SVR
(dB)
20
40
30
50
60
10 10
2
10
3
f (Hz)
R
g
= 0
R
g
= 10 kΩ
V
s
= 14.4 V
G
v
= 50 dB
C
3
= 10 µF
SVR
(dB)
50
40
30
20
10 20 C
3
(µF)12 5
V
s
= 14.4 V
R
L
= 4 Ω
R
g
= 10 kΩ
G
v
= 390/1 Ω
f
ripple
= 100 Hz
C
2
= 220 µF
C
2
= 22 µF
C
2
= 5 µF
SVR
(dB)
50
40
30
20
10 20 C
3
(µF)12 5
V
s
= 14.4 V
R
L
= 4 Ω
R
g
= 10 kΩ
G
v
= 1000/10 Ω
f
ripple
= 100 Hz
C
2
= 220 µF
C
2
= 22 µF
C
2
= 5 µF
G
v
(dB)
54
50
46
42
38
34
30
20
50
26
22
10 100
100
200
500
300 V
i
(mV)
V
S
= 14.4 V
f = 1 kHz
R
L
= 4 Ω
P
o
= 6 W
P
o
= 0.5 W
30
G
v
2468 2468
TDA2004R Electrical specifications
Doc ID 17614 Rev 2 11/17
Figure 16. Total power dissipation and
efficiency vs. output power (R
L
= 2
)
Figure 17. Total power dissipation and efficiency
vs. output power (R
L
= 3.2
)
Figure 18. Maximum allowable power dissipa-
tion vs. ambient temperature
P
tot
(W)
10
60
40
20
12
η
(%)
η
2
4
6
8
20 24 P
o
(W)841216
V
s
= 14.4 V
R
L
= 4 Ω
f = 1 kHz
G
v
= 50 dB
P
tot
P
tot
(W)
60
40
20
6
η
(%)
η
2
4
10 12 P
o
(W)4268
V
s
= 13.2 V
R
L
= 3.2 Ω
f = 1 kHz
G
v
= 50 dB
P
tot
P
tot
(W)
32
28
24
20
-50
50
100 T
amb
(˚C)
0
16
12
8
4
0
R
th
= 8˚C/W
R
th
= 4˚C/W
R
th
= 2˚C/W
INFINITE HEATSINK
Application suggestion TDA2004R
12/17 Doc ID 17614 Rev 2
3 Application suggestion
The recommended values of the components are those shown on application circuit of
Figure 2. Different values can be used; the following table can help the designer.
3.1 Built-in protection systems
3.1.1 Load dump voltage surge
The TDA2004R has a circuit which enables it to withstand voltage pulse train, on Pin 9, of
the type shown in Figure 20. If the supply voltage peaks to more than 40 V, then an LC filter
must be inserted between the supply and pin 9, in order to assure that the pulses at pin 9
will be held within the limits shown.
A suggested LC network is shown in Figure 19. With this network, a train of pulses with
amplitude up to 120 V and width of 2 ms can be applied at point A. This type of protection is
ON when the supply voltage (pulse or DC) exceeds 18 V. For this reason the maximum
operating supply voltage is 18 V.
Table 5. Recommended values of the component of the application circuit
Component
Recommended
value
Purpose Larger than Smaller than r
R1 120 k
Optimization of the
output signal symmetry
Smaller P
omax
Smaller P
omax
R2, R4 1 k
Closed loop gain setting
(1)
Increase of gain Decrease of gain
R3, R5 3.3 Decrease of gain Increase of gain
R6, R7 1 Frequency stability
Danger of oscillation
at high frequency with
inductive load
C1, C2 2.2 F Input DC decoupling High turn-on delay
High turn-on pop, higher
low frequency cutoff.
Increase of noise
C3 10 F Ripple rejection
Increase of SVR,
Increase of the switch-on
time
Degradation of SVR
C4, C6 100 F Bootstrapping -
Increase of distortion at
low frequency
C5, C7 100 F
Feedback input DC
decoupling
--
C8, C9 0.1 F Frequency stability - Danger of oscillation
C10, C11 1000 to 2200 F Output DC decoupling -
Higher low-frequency
cut-off
1. The closed loop gain must be higher than 26 dB.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17

TDA2004R

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Manufacturer:
STMicroelectronics
Description:
Audio Amplifiers 10+10W Stereo Amp
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