June 2010 Doc ID 17614 Rev 1 1/17
1
TDA2004R
10 + 10 W stereo amplifier for car radio
Features
■Low distortion
■Low noise
■Protection against:
– Output AC short circuit to ground
– Overrating chip temperature
– Load dump voltage surge
– Fortuitous open ground
– Very inductive loads
Description
The TDA2004R is a class B dual audio power
amplifier in Multiwatt11 package specifically
designed for car radio applications.
Power booster amplifiers can be easily designed
using this device that provides a high current
capability (up to 3.5 A) and can drive very low
impedance loads (down to 1.6 Ω).
The TDA2004R allows very compact applications
because few external components are required
and it doesn't need electrical insulation between
the package and the heatsink.
Multiwatt11
Table 1. Device summary
Order code Package Packing
TDA2004R Multiwatt11 Tube
www.st.com
Contents TDA2004R
2/17 Doc ID 17614 Rev 1
Contents
1 Pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.4 Test and application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.5 Electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3 Application suggestion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1 Built-in protection systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1.1 Load dump voltage surge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1.2 Short circuit (AC condition) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1.3 Polarity inversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1.4 Open ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1.5 Inductive load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1.6 DC voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1.7 Thermal shut-down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
TDA2004R List of tables
Doc ID 17614 Rev 1 3/17
List of tables
Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 2. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 3. Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 4. Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 5. Recommended values of the component of the application circuit. . . . . . . . . . . . . . . . . . . 12
Table 6. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
List of figures TDA2004R
4/17 Doc ID 17614 Rev 1
List of figures
Figure 1. Pins connection diagram (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2. Test and application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 3. Printed circuit board and components layout of the figure 2. . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 4. Quiescent output voltage vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 5. Quiescent drain current vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 6. Distortion vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 7. Output power vs. supply voltage, RL = 2 and 4 Ω. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Figure 8. Output power vs. supply voltage, RL = 1.6 and 3.2Ω . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Figure 9. Distortion vs. frequency, RL = 2 and 4 Ω . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Figure 10. Distortion vs. frequency, RL = 1.6 and 3.2 Ω . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Figure 11. Supply voltage rejection vs. C3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 12. Supply voltage rejection vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 13. Supply voltage rejection vs. C2 and C3, GV = 390/1Ω. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Figure 14. Supply voltage rejection vs. C2 and C3, GV = 1000/10Ω . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Figure 15. Gain vs. input sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 16. Total power dissipation and efficiency vs. output power (RL = 2 Ω) . . . . . . . . . . . . . . . . . . 11
Figure 17. Total power dissipation and efficiency vs. output power (RL = 3.2 Ω ) . . . . . . . . . . . . . . . . 11
Figure 18. Maximum allowable power dissipation vs. ambient temperature . . . . . . . . . . . . . . . . . . . . 11
Figure 19. Suggested LC network circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 20. Voltage gain bridge configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 21. Multiwatt11 mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
TDA2004R Pins description
Doc ID 17614 Rev 1 5/17
1 Pins description
Figure 1. Pins connection diagram (top view)
1
2
3
4
5
6
7
9
10
11
8
BOOTSTRAP(1)
INPUT-(1)
SVRR
GND
INPUT-(2)
INPUT+(2)
OUTPUT(2)
+V
S
OUTPUT(1)
INPUT+(1)
TAB CONNECTED TO PIN 6 D95AU318
BOOTSTRAP(2)
Electrical specifications TDA2004R
6/17 Doc ID 17614 Rev 1
2 Electrical specifications
2.1 Absolute maximum ratings
2.2 Thermal data
2.3 Electrical characteristics
Refer to the stereo application circuit Tamb = 25 °C; Gv = 50 dB; Rth(heatsink) = 4 °C/W unless
otherwise specified
Table 2. Absolute maximum ratings
Symbol Parameter Value Unit
VS
Operating supply voltage 18
VDC supply voltage 28
Peak supply voltage (50 ms) 40
Io(1)
1. The max. output current is internally limited.
Output peak current (non repetitive t = 0.1 ms) 4.5 A
Output peak current (repetitive f ≥10 Hz) 3.5
Ptot Power dissipation at Tcase = 60 °C 30 W
Tstg, TjStorage and junction temperature -40 to 150 °C
Table 3. Thermal data
Symbol Parameter Value Unit
Rth-j-case Thermal resistance junction-to-case max 3 °C/W
Table 4. Electrical characteristics
Symbol Parameter Test condition Min. Typ. Max. Unit
VSSupply voltage 8 18 V
VoQuiescent offset voltage VS = 14.4 V
VS = 13.2 V
6.6
6
7.2
6.6
7.8
7.2
V
V
IdTotal quiescent drain current VS = 14.4 V
VS = 13.2 V -65
62
120
120
mA
mA
PoOutput power (each channel)
f = 1 kHz; THD = 10 %
VS = 14.4 V; RL = 4 Ω
VS = 14.4 V; RL = 3.2 Ω
VS = 14.4 V; RL = 2 Ω
VS = 14.4 V; RL = 1.6 Ω
6
7
9
10
6.5
8
10
11
-W
TDA2004R Electrical specifications
Doc ID 17614 Rev 1 7/17
PoOutput power (each channel)
f = 1 kHz; THD = 10 %
VS = 13.2 V; RL =3.2 Ω
VS = 13.2 V; RL = 1.6 Ω
VS = 16 V; RL = 2 Ω
6
9
6.5
10(1)
12
-W
THD Total harmonic distortion
f = 1 kHz; VS = 14.4 V;
RL = 4 Ω; Po = 50 mW to 4 W; -0.21 %
f = 1 kHz; VS = 14.4 V;
RL = 2 Ω; Po = 50 mW to 6 W; -0.31 %
f = 1 kHz; VS = 13.2 V;
RL = 3.2 Ω; Po = 50 mW to 3W; -0.21 %
f = 1KHz; VS = 13.2V;
RL = 1.6Ω; Po = 40mW to 6W; -0.31 %
CT Cross talk
VS = 14.4 V; Vo = 4 VRMS;
Rg = 5 kΩ; RL = 4 Ω;
f = 1 kHz
f = 10 kHz
50
40
60
45
-mW
mW
ViInput saturation voltage - 300 - mW
RiInput resistance f = 1 kHz 70 200 - kΩ
fLLow frequency roll off (-3 dB)
RL = 4 Ω
RL = 2 Ω
RL = 3.2 Ω
RL = 1.6 Ω
--
35
50
40
55
Hz
fHHigh frequency roll off (-3 dB) RL = 1.6 Ω to 4 Ω 15 - - kHz
Gv
Open loop voltage gain f = 1 kHz - 90 - dB
Closed loop voltage gain f = 1 kHz 48 50 51
ΔGvClosed loop gain matching - - 0.5 - dB
eNTotal input noise voltage Rg = 10 kΩ(2) -1.55μV
SVR Supply voltage rejection
Vripple = 0.5 Vrms;
fripple =100 Hz; Rg = 10 kΩ;
C3 = 10 μF
35 45 - dB
ηEfficiency
f = 1 kHz; VS = 14.4 V;
RL = 4 Ω; Po = 6.5 W;
RL = 2Ω; Po = 10 W;
-70
60
-%
f = 1 kHz; VS = 13.2 V;
RL = 3.2 Ω; Po = 6.5 W;
RL = 1.6 Ω; Po = 10 W;
-70
60
-%
TJ
Thermal shutdown junction
temperature - - 145 - °C
1. 9.3 W without bootstrap.
2. Bandwidth filter: 22 Hz to 22 kHz.
Table 4. Electrical characteristics (continued)
Symbol Parameter Test condition Min. Typ. Max. Unit
Electrical specifications TDA2004R
8/17 Doc ID 17614 Rev 1
2.4 Test and application circuit
Figure 2. Test and application circuit
Figure 3. Printed circuit board and components layout of the figure 2
INPUT (L)
INPUT (R)
120 kΩ
1.2 kΩ
+Vs
R
L
R
L
+
–
+
–
C1
C3
C4
C5
3V 1/2
TDA 2004R
1/2
TDA 2004R
5
93
7
8
4
10 V
2.2µF
C12
0.1µF
10 µF
100 µF
0.1 µF
220 µF
10 V
C10
C8R2
33 Ω
1 Ω
R3
R6
2200 µF
1.2 kΩ
C6
C7
11
10
2
6
10 V
100 µF
0.1 µF
220 µF
10 V
C11
C9R4
33 Ω
1 Ω
R5
R7
2200 µF
C2 3V
1
2.2µF
TDA2004R Electrical specifications
Doc ID 17614 Rev 1 9/17
2.5 Electrical characteristics curves
Figure 4. Quiescent output voltage vs. sup-
ply voltage
Figure 5. Quiescent drain current vs. supply
voltage
Figure 6. Distortion vs. output power Figure 7. Output power vs. supply voltage,
RL = 2 and 4 Ω
Figure 8. Output power vs. supply voltage,
RL = 1.6 and 3.2Ω
Figure 9. Distortion vs. frequency, RL = 2 and
4 Ω
VO
(V)
8
5
6
7
4
10 12 14 16 Vs (V)
08
I
d
(mA)
100
80
60
40
20
10 12 14 16 Vs (V)
08
d
(%)
2
4
6
8
0
0.01 0.1 1 Po (W)
f = 1 kHz
Gv = 50 dB
Vs = 13.2 V
RL = 1.6 Ω
Vs = 14.4 V
RL = 2 Ω
Vs = 13.2 V
RL = 3.2 Ω
Vs = 14.4 V
RL = 4 Ω
Vs (V)
Po
(W)
15
12
9
6
3
0
810 12 14 16
f = 1 kHz
Gv = 50 dB
d = 10 % RL = 2 Ω
RL = 4 Ω
Vs (V)
Po
(W)
15
12
9
6
3
0
810 12 14 16
f = 1 kHz
Gv = 50 dB
d = 10 % RL = 1.6 Ω
RL = 3.2 Ω
d
(%)
1.2
0.8
0.4
10 f (Hz)
102103104
Vs = 14.4 V
Gv = 50 dB
Po = 2.5 W
RL = 2 Ω
Po = 2.5 W
RL = 4 Ω
Electrical specifications TDA2004R
10/17 Doc ID 17614 Rev 1
Figure 10. Distortion vs. frequency, RL = 1.6
and 3.2 Ω
Figure 11. Supply voltage rejection vs. C3
Figure 12. Supply voltage rejection vs.
frequency
Figure 13. Supply voltage rejection vs. C2 and
C3, GV = 390/1Ω
Figure 14. Supply voltage rejection vs. C2 and
C3, GV = 1000/10Ω
Figure 15. Gain vs. input sensitivity
d
(%)
1.2
0.8
0.4
10 f (Hz)
102103104
Vs = 13.2 V
Gv = 50 dB
Po = 2.5 W
RL = 1.6 Ω
Po = 2.5 W
RL = 3.2 Ω
SVR
(dB)
10
20
50
60
40
30
10 12 C3 (µF)13
Vs = 14.4 V
fripple = 100 kHz
Vripple = 0.5 V
Gv = 50 dB
Rg = 10 kΩ
SVR
(dB)
20
40
30
50
60
10 102103f (Hz)
Rg = 0
Rg = 10 kΩ
Vs = 14.4 V
Gv = 50 dB
C3 = 10 µF
SVR
(dB)
50
40
30
20
10 20 C3 (µF)12 5
Vs = 14.4 V
RL = 4 Ω
Rg = 10 kΩ
Gv = 390/1 Ω
fripple = 100 Hz C2 = 220 µF
C2 = 22 µF
C2 = 5 µF
SVR
(dB)
50
40
30
20
10 20 C3 (µF)12 5
Vs = 14.4 V
RL = 4 Ω
Rg = 10 kΩ
Gv = 1000/10 Ω
fripple = 100 Hz
C2 = 220 µF
C2 = 22 µF
C2 = 5 µF
Gv
(dB)
54
50
46
42
38
34
30
20
50
26
22
10 100
100
200
500
300 Vi (mV)
VS = 14.4 V
f = 1 kHz
RL = 4 Ω
Po = 6 W
Po = 0.5 W
30
Gv
2468 2468
TDA2004R Electrical specifications
Doc ID 17614 Rev 1 11/17
Figure 16. Total power dissipation and
efficiency vs. output power (R
L
= 2
Ω
)
Figure 17. Total power dissipation and efficiency
vs. output power (R
L
= 3.2
Ω
)
Figure 18. Maximum allowable power dissipa-
tion vs. ambient temperature
Ptot
(W)
10
60
40
20
12
η
(%)
η
2
4
6
8
20 24 Po (W)841216
Vs = 14.4 V
RL = 4 Ω
f = 1 kHz
Gv = 50 dB
Ptot
Ptot
(W)
60
40
20
6
η
(%)
η
2
4
10 12 Po (W)4268
Vs = 13.2 V
RL = 3.2 Ω
f = 1 kHz
Gv = 50 dB
Ptot
P
tot
(W)
32
28
24
20
-50 50 100 T
amb
(˚C)
0
16
12
8
4
0
R
th
= 8˚C/W
Rth = 4˚C/W
Rth = 2˚C/W
INFINITE HEATSINK
Application suggestion TDA2004R
12/17 Doc ID 17614 Rev 1
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 kΩOptimization of the
output signal symmetry Smaller Pomax Smaller Pomax
R2, R4 1 kΩClosed loop gain setting
(1)
Increase of gain Decrease of gain
R3, R5 3.3 ΩDecrease of gain Increase of gain
R6, R7 1 ΩFrequency stability
Danger of oscillation
at high frequency with
inductive load
C1, C2 2.2 μF Input DC decoupling High turn-on delay
High turn-on pop, higher
low frequency cutoff.
Increase of noise
C3 10 μF Ripple rejection
Increase of SVR,
Increase of the switch-on
time
Degradation of SVR
C4, C6 100 μF Bootstrapping - Increase of distortion at
low frequency
C5, C7 100 μFFeedback input DC
decoupling --
C8, C9 0.1 μF Frequency stability - Danger of oscillation
C10, C11 1000 to 2200 μF Output DC decoupling - Higher low-frequency
cut-off
1. The closed loop gain must be higher than 26 dB.
TDA2004R Application suggestion
Doc ID 17614 Rev 1 13/17
Figure 19. Suggested LC network circuit
Figure 20. Voltage gain bridge configuration
3.1.2 Short circuit (AC condition)
The TDA2004R can withstand a permanent short-circuit from the output to ground caused
by a wrong connection during normal working.
3.1.3 Polarity inversion
High current (up to 10 A) can be handled by the device with no damage for a longer period
than the blow-out time of a quick 2 A fuse (normally connected in series with the supply).
This feature is added to avoid destruction, if during fitting to the car, a mistake on the
connection of the supply is made.
3.1.4 Open ground
When the ratio is in the ON condition and the ground is accidentally opened, a standard
audio amplifier will be damaged. On the TDA2004R protection diodes are included to avoid
any damage.
3.1.5 Inductive load
A protection diode is provided to allow use of the TDA2004R with inductive loads.
3.1.6 DC voltage
The maximum operating DC voltage for the TDA2004R is 18 V. However the device can
withstand a DC voltage up to 28 V with no damage. This could occur during winter if two
batteries are series connected to crank the engine.
FROM
SUPPLY
LINE
L = 2mH
A
C
TO PIN
3000 µF
16V
Vs (V)
40
t1
t1 = 50ms
t2 = 1000ms
t2
t
14.4
Application suggestion TDA2004R
14/17 Doc ID 17614 Rev 1
3.1.7 Thermal shut-down
The presence of a thermal limiting circuit offers the following advantages:
1. an overload on the output (even if it is permanent), or an excessive ambient
temperature can be easily withstood.
2. the heatsink can have a smaller factor of safety compared with that of a conventional
circuit. There is no device damage in the case of excessive junction temperature: all
that happens is that Po (and therefore Ptot) and Id are reduced.
The maximum allowable power dissipation depends upon the size of the external heatsink
(i.e. its thermal resistance); Figure 18 shows the power dissipation as a function of ambient
temperature for different thermal resistance.
TDA2004R Package information
Doc ID 17614 Rev 1 15/17
4 Package information
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK® is an ST trademark.
Figure 21. Multiwatt11 mechanical data and package dimensions
OUTLINE AND
MECHANICAL DATA
0016035 H
DIM. mm inch
MIN. TYP. MAX. MIN. TYP. MAX.
A50.197
B 2.65 0.104
C1.60.063
D 1 0.039
E 0.49 0.55 0.019 0.022
F 0.88 0.95 0.035 0.037
G 1.45 1.7 1.95 0.057 0.067 0.077
G1 16.75 17 17.25 0.659 0.669 0.679
H1 19.6 0.772
H2 20.2 0.795
L 21.9 22.2 22.5 0.862 0.874 0.886
L1 21.7 22.1 22.5 0.854 0.87 0.886
L2 17.4 18.1 0.685 0.713
L3 17.25 17.5 17.75 0.679 0.689 0.699
L4 10.3 10.7 10.9 0.406 0.421 0.429
L7 2.65 2.9 0.104 0.114
M 4.25 4.55 4.85 0.167 0.179 0.191
M1 4.73 5.08 5.43 0.186 0.200 0.214
S 1.9 2.6 0.075 0.102
S1 1.9 2.6 0.075 0.102
Dia1 3.65 3.85 0.144 0.152
Multiwatt11 (Vertical)
Revision history TDA2004R
16/17 Doc ID 17614 Rev 1
5 Revision history
Table 6. Document revision history
Date Revision Changes
18-Jun-2010 1 Initial release.
TDA2004R
Doc ID 17614 Rev 1 17/17
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