TDA7267 データシートの表示（PDF） - STMicroelectronics

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TDA7267

2W MONO AMPLIFIER

STMicroelectronics 

APPLICATION CIRCUIT

TDA7267

IN

STAND-BY

VS

0.1µF

IN

SVR

47µF

P-GND

100µF

470µF

OUT

8Ω

D94AU166

VS=12V

APPLICATION HINTS:

For 12V supply and 8Ω speaker application, its

maximum power dissipation is about 1W.

Assumming that max ambient temperature is

70°C. Required thermal resistance of the device

and heat dissipating means must be equal to (150

- 70)/1 = 80°C/W.

Junction to pin thermal resistance of the package

is about 15°C/W. That means external heat sink

of about 65°C/W is required.

Cu ground plane of PCB can be used as heat dis-

sipating means.

Stand-By switches must be able to discharge Csvr

current.

3/5

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