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

November 1982 3

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.

November 1982 4

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.==++=

November 1982 5

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

November 1982 6

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.

November 1982 7

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.

November 1982 8

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.

November 1982 9

Philips Semiconductors Product speciﬁcation

5 W audio power ampliﬁer TDA2611A

Fig.9 Total power dissipation and efficiency as a function of output power.

November 1982 10

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.

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