TDA2030

14W Hi-Fi AUDIO AMPLIFIER

DESCRIPTION
The TDA2030 is a monolithic integrated circuit in
Pentawatt package, intended for use as a low
frequency class AB amplifier. Typically it provides
14W output power (d = 0.5%) at 14V/4Ω; at ± 14V
the guaranteed output power is 12W on a 4Ω load
and 8W on a 8Ω (DIN45500).
The TDA2030 provides high output current and has
very low harmonic and cross-over distortion.
Further the device incorporates an original (and Pentawatt
patented) short circuit protection system compris-
ing an arrangement for automatically limiting the
dissipated power so as to keep the working point
of the output transistors within their safe operating ORDERING NUMBERS : TDA2030H
area. A conventional thermal shut-down system is TDA2030V
also included.
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit

Vs Supply voltage ± 18 V
Vi Input voltage Vs
Vi Differential input voltage ± 15 V
Io Output peak current (internally limited) 3.5 A
Ptot Power dissipation at Tcase = 90°C 20 W
Tstg, Tj Stoprage and junction temperature -40 to 150 °C

TYPICAL APPLICATION

March 1993 1/11

TDA2030

PIN CONNECTION (top view)

+VS
OUTPUT
-VS
INVERTING INPUT
NON INVERTING INPUT

TEST CIRCUIT

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 TDA2030

THERMAL DATA
Symbol Parameter Value Unit

R th j-case Thermal resistance junction-case max 3 °C/W

ELECTRICAL CHARACTERISTICS (Refer to the test circuit, Vs = ± 14V, T amb = 25°C unless otherwise
specified)
Symbol Parameter Test conditions Min. Typ. Max. Unit

Vs Supply voltage ±6 ± 18 V

Id Quiescent drain current 40 60 mA

Ib Input bias current 0.2 2 µA

Vs = ± 18V
Vos Input offset voltage ±2 ± 20 mV

Ios Input offset current ± 20 ± 200 nA

Po Output power d = 0.5% Gv = 30 dB

f = 40 to 15,000 Hz
RL = 4Ω 12 14 W
RL = 8Ω 8 9 W

d = 10% Gv = 30 dB
f = 1 KHz
RL = 4Ω 18 W
RL = 8Ω 11 W

d Distortion Po = 0.1 to 12W

RL = 4Ω Gv = 30 dB
f = 40 to 15,000 Hz 0.2 0.5 %

Po = 0.1 to 8W
RL = 8Ω Gv = 30 dB
f = 40 to 15,000 Hz 0.1 0.5 %

B Power Bandwidth Gv = 30 dB
10 to 140,000 Hz
(-3 dB) Po = 12W R L = 4Ω

Ri Input resistance (pin 1) 0.5 5 MΩ

Gv Voltage gain (open loop) 90 dB

Gv Voltage gain (closed loop) f = 1 kHz 29.5 30 30.5 dB

eN Input noise voltage B = 22 Hz to 22 KHz 3 10 µV

iN Input noise current 80 200 pA

SVR Supply voltage rejection RL = 4Ω Gv = 30 dB 40 50 dB

Rg = 22 kΩ
Vripple = 0.5 Veff
fripple = 100 Hz

Id Drain current Po = 14W R L = 4Ω 900 mA

Po = W R L = 8Ω 500 mA

Tj Thermal shut-down junction 145 °C

temperature

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TDA2030

Figure 1. Output power vs. Figure 2. Output power vs. F ig u re 3 . Di stor ti on v s.

supply voltage supply voltage output power

Fi gur e 4. Di stortion v s. F ig ure 5. Di stortion vs. F ig u re 6 . Di stor ti on v s.

output power output power frequency

F igu r e 7. Di stor ti on vs . Fig ure 8. Fre que nc y re - Figure 9. Quiescent current

frequency sponse with different values vs. supply voltage
of the rolloff capacitor C8
(see fig. 13)

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 TDA2030

Figure 10. Supply voltage Figure 11. Power dissipa- Figure 12. Maximum power
rejection vs. voltage gain tion and efficiency vs. output dissipation vs. supply volt-
power age (sine wave operation)

APPLICATION INFORMATION

Figure 13. Typical amplifier Figure 14. P.C. board and component layout for
with split power supply the circuit of fig. 13 (1 : 1 scale)

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TDA2030

APPLICATION INFORMATION (continued)

Figure 15. Typical amplifier Figure 16. P.C. board and component layout for
with single power supply the circuit of fig. 15 (1 : 1 scale)

Figure 17. Bridge amplifier configuration with split power supply (Po = 28W, Vs = ±14V)

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 TDA2030

PRACTICAL CONSIDERATIONS

Printed circuit board packageand the heatsinkwith singlesupply voltage

The layout shown in Fig. 16 should be adopted by configuration.
the designers. If different layouts are used, the
ground points of input 1 and input 2 must be well Application suggestions
decoupled from the ground return of the output in The recommended values of the components are
which a high current flows. those shown on application circuit of fig. 13.
Different values can be used. The following table
Assembly suggestion can help the designer.
No electrical isolation is needed between the

Recomm. Larger than Smaller than

Component Purpose
value recommended value recommended value

R1 22 kΩ Closed loop gain Increase of gain Decrease of gain (*)

setting

R2 680 Ω Closed loop gain Decrease of gain (*) Increase of gain

setting

R3 22 kΩ Non inverting input Increase of input Decrease of input

biasing impedance impedance

R4 1Ω Frequency stability Danger of osccilat. at

high frequencies
with induct. loads

R5 ≅ 3 R2 Upper frequency Poor high frequencies Danger of

cutoff attenuation oscillation

C1 1 µF Input DC Increase of low

decoupling frequencies cutoff

C2 22 µF Inverting DC Increase of low

decoupling frequencies cutoff

C3, C4 0.1 µF Supply voltage Danger of

bypass oscillation

C5, C6 100 µF Supply voltage Danger of

bypass oscillation

C7 0.22 µF Frequency stability Danger of oscillation

C8 1 Upper frequency Smaller bandwidth Larger bandwidth

≅
2π B R1 cutoff

D1, D2 1N4001 To protect the device against output voltage spikes

(*) Closed loop gain must be higher than 24dB

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TDA2030

SHORT CIRCUIT PROTECTION

The TDA2030 has an original circuit which limits the peak power limiting rather than simple current lim-
current of the output transistors. Fig. 18 shows that iting.
the maximum output current is a function of the It reduces the possibility that the device gets dam-
collector emitter voltage; hence the output transis- aged during an accidental short circuit from AC
tors work within their safe operating area (Fig. 2). output to ground.
This function can therefore be considered as being

F i gu r e 1 8. Ma ximum Figure 19. Safe operating area and

o u tpu t c urr en t v s . collector characteristics of the
voltage [VCEsat ] across protected power transistor
each output transistor

THERMAL SHUT-DOWN

The presence of a thermal limiting circuit offers the junction temperature increases up to 150°C, the
following advantages: thermal shut-down simply reduces the power
1. An overload on the output (even if it is perma- dissipation at the current consumption.
nent), or an abovelimit ambient temperaturecan The maximum allowable power dissipation de-
be easily supported since the Tj cannot be pends upon the size of the external heatsink (i.e. its
higher than 150°C. thermal resistance); fig. 22 shows this dissipable
2. The heatsink can have a smaller factor of safety power as a function of ambient temperature for
compared with that of a conventional circuit. different thermal resistance.
There is no possibility of device damage due to
high junction temperature.If for any reason, the

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 TDA2030

Figure 20. Output power and Figure 21. Output power and F i gu r e 2 2. Ma ximum
d ra i n cu r ren t vs. c ase d r a i n c u rr en t vs. c as e allowable power dissipation
temperature (RL = 4Ω) temperature (RL = 8Ω) vs. ambient temperature

Figure 23. Example of heat-sink Dimension : suggestion.

The following table shows the length that
the heatsink in fig.23 must have for several
values of Ptot and Rth.

Ptot (W) 12 8 6

Length of heatsink
60 40 30
(mm)

Rth of heatsink
4.2 6.2 8.3
(° C/W)

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TDA2030

PENTAWATT PACKAGE MECHANICAL DATA

mm inch
DIM.
MIN. TYP. MAX. MIN. TYP. MAX.
A 4.8 0.189
C 1.37 0.054
D 2.4 2.8 0.094 0.110
D1 1.2 1.35 0.047 0.053
E 0.35 0.55 0.014 0.022
F 0.8 1.05 0.031 0.041
F1 1 1.4 0.039 0.055
G 3.4 0.126 0.134 0.142
G1 6.8 0.260 0.268 0.276
H2 10.4 0.409
H3 10.05 10.4 0.396 0.409
L 17.85 0.703
L1 15.75 0.620
L2 21.4 0.843
L3 22.5 0.886
L5 2.6 3 0.102 0.118
L6 15.1 15.8 0.594 0.622
L7 6 6.6 0.236 0.260
M 4.5 0.177
M1 4 0.157
Dia 3.65 3.85 0.144 0.152

L
E

L1
M1
A

M
D
C

D1

L2

L5 L3
G1
H3

Dia.
F
F1

L7
H2

L6

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 TDA2030

Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectronics.

 1994 SGS-THOMSON Microelectronics - All Rights Reserved

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