Philips TDA2611A User manual

DATA SHEET
Product specification
File under Integrated Circuits, IC01 November 1982
INTEGRATED CIRCUITS
TDA2611A
5 W audio power amplifier

November 1982 2
Philips Semiconductors Product specification
5 W audio power amplifier TDA2611A
The TDA2611A is a monolithic integrated circuit in a 9-lead single in-line (SIL) plastic package with a high supply voltage
audio amplifier. Special features are:
•possibility for increasing the input impedance
•single in-line (SIL) construction for easy mounting
•very suitable for application in mains-fed apparatus
•extremely low number of external components
•thermal protection
•well defined open loop gain circuitry with simple quiescent current setting and fixed integrated closed loop gain.
QUICK REFERENCE DATA
PACKAGE OUTLINE
9-lead SIL; plastic (SOT110B); SOT110-1; 1996 July 23.
Supply voltage range VP6 to 35 V
Repetitive peak output current IORM <1,5 A
Output power at dtot =10%
VP=18 V; RL=8 ΩPotyp. 4,5 W
VP=25 V; RL=15 ΩPotyp. 5 W
Total harmonic distortion at Po<2 W; RL=8 Ωdtot typ. 0,3 %
Input impedance |Zi|typ. 45 kΩ
Total quiescent current at VP=18 V Itot typ. 25 mA
Sensitivity for Po=2,5 W; RL=8 ΩVityp. 55 mV
Operating ambient temperature Tamb −25 to +150 °C
Storage temperature Tstg −55 to +150 °C

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Philips Semiconductors Product specification
5 W audio power amplifier TDA2611A
RATINGS
Limiting values in accordance with the Absolute Maximum System (IEC 134)
Supply voltage VPmax. 35 V
Non-repetitive peak output current IOSM max. 3 A
Repetitive peak output current IORM max. 1,5 A
Total power dissipation see derating curves Fig. 2
Storage temperature Tstg −55 to +150 °C
Operating ambient temperature Tamb −25 to +150 °C
Fig.1 Circuit diagram; pin 3 not connected.

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Philips Semiconductors Product specification
5 W audio power amplifier TDA2611A
Fig.2 Power derating curves.
HEATSINK EXAMPLE
Assume VP=18 V; RL=8 Ω; Tamb =60 °C maximum; Tj=150 °C (max. for a 4 W application into an 8 Ωload, the
maximum dissipation is about 2,2 W).
The thermal resistance from junction to ambient can be expressed as:
Since Rth j-tab = 11 K/W and Rth tab-h =1 K/W, Rth h-a =41 −(11 +1) =29 K/W.
Rth j-a Rth j-tab Rth tab-h Rth h-a 150 60–
22,
---------------------- 41 K/W.==++=

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Philips Semiconductors Product specification
5 W audio power amplifier TDA2611A
D.C. CHARACTERISTICS
A.C. CHARACTERISTICS
Tamb = 25 °C; VP= 18 V; RL= 8 Ω; f =1 kHz unless otherwise specified; see also Fig. 3
Note
1. Input impedance can be increased by applying C and R between pins 5 and 9 (see also Figures 6 and 7).
Supply voltage range VP6 to 35 V
Repetitive peak output current IORM <1,5 A
Total quiescent current at VP=18 V Itot typ. 25 mA
A.F. output power at dtot =10%
VP=18 V; RL=8 ΩPo>4W
typ. 4,5 W
VP=12 V; RL=8 ΩPotyp. 1,7 W
VP=8,3 V; RL=8 ΩPotyp. 0,65 W
VP=20 V; RL=8 ΩPotyp. 6 W
VP=25 V; RL=15 ΩPotyp. 5 W
Total harmonic distortion at Po=2 W dtot typ. 0,3 %
<1%
Frequency response > 15 kHz
Input impedance |Zi|typ. 45 kΩ(1)
Noise output voltage at RS=5 kΩ; B =60 Hz to 15 kHz Vntyp. 0,2 mV
<0,5 mV
Sensitivity for Po=2,5 W Vityp. 55 mV
44 to 66 mV

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Philips Semiconductors Product specification
5 W audio power amplifier TDA2611A
Fig.3 Test circuit; pin 3 not connected.
Fig.4 Total harmonic distortion as a function of output power.

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Philips Semiconductors Product specification
5 W audio power amplifier TDA2611A
Fig.5 Output power as a function of supply voltage.
Fig.6 Input impedance as a function of frequency; curve a for C =1 µF, R =0 Ω; curve b for
C=1 µF, R =1 kΩ; circuit of Fig. 3; C2 =10 pF; typical values.

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Philips Semiconductors Product specification
5 W audio power amplifier TDA2611A
Fig.7 Input impedance as a function of R in circuit of Fig. 3; C =1 µF; f =1 kHz.
Fig.8 Total harmonic distortion as a function of RSin the circuit of Fig. 3; Po= 3,5 W; f =1 kHz.

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Philips Semiconductors Product specification
5 W audio power amplifier TDA2611A
Fig.9 Total power dissipation and efficiency as a function of output power.

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Philips Semiconductors Product specification
5 W audio power amplifier TDA2611A
APPLICATION INFORMATION
Fig.10 Ceramic pickup amplifier circuit.
Fig.11 Total harmonic distortion as a function of output power;  with tone control;
−−−without tone control; in circuit of Fig. 10; typical values.