TDA7292 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

TDA7292

40W + 40W stereo amplifier with mute and standby

STMicroelectronics 

Applications information

5

Applications information

TDA7292

Warning: SOA protection:

If the TDA7292 is operated without a load connected to the

output terminals, the SOA protection circuit could be

activated when a high amplitude and high frequency signal is

applied to the input.

The frequency and amplitude of the signal able to trigger the

protection is a function also of the supply voltage level used.

If the above mentioned condition is possible when the

speakers are not connected, it is recommended to connect

the input to ground or add a dummy resistive load. For

example, a 1-kΩ / 1-W resistor can be used at Vcc = ±26 V. If a

lower supply voltage is used, the resistor value must be

decreased accordingly.

5.1

Applications with dual supply

Figure 18. Test and applications circuit (dual supply)

R2

A

R1

Q1

B

SW1

ST-BY DZ

C3

MUTE/

ST-BY 5

IN (L) 7

C1

R4

R3

SW2 A B

MUTE

GND 9

C2

IN (R) 11

SW1 position

B

B

A

A

SW2 position

A

B

A

B

Mode

Standby

Standby

Mute

Play

D94AU087B

+VS

+VS

3

C4

C5

+

4 OUT (L)

-

R5

R7

8 IN- (L)

C8

R6

10 IN- (R)

R9

R8

-

2 OUT (R)

+

R10

1

6

-VS

C9

C7

C6

RL (L)

RL (R)

14/22

Doc ID 15775 Rev 5

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