TDA7296

10/15

Figure 20. Single Signal ST-BY/MUTE Control Circuit

6

BRIDGE APPLICATION

Another application suggestion is the BRIDGE configuration, where two TDA7296 are used, as shown by

the schematic diagram.

In this application, the value of the load must not be lower than 8 Ohm for dissipation and current capability

reasons. A suitable field of application includes HI-FI/TV subwoofers realizations. The main advantages

offered by this solution are:

– High power performances with limited supply voltage level.

– Considerably high output power even with high load values (i.e. 16 Ohm).

The characteristics shown by figures 23 and 24, measured with loads respectively 8 Ohm and 16 Ohm.

±24V the maximum Pout is 60W.

Figure 21. Bridge Application Circuit

1N4148

10K

30K

20K

10

µF

10

µF

MUTE

STBY

D93AU014

MUTE/

ST-BY

22K

0.56

µF

2200

µF

0.22

µF

+

-

22

µF

22K

680

22K

3

1

4

13

7

+Vs

Vi

8

15

2

14

6

10

9

+

-

3

0.56

µF

22K

1

4

2

14

6

22

µF

22K

680

10

9

22

µF

15

8

-Vs

2200

µF

0.22

µF

22

µF

20K

10K

30K

1N4148

ST-BY/MUTE

13

7

D93AU015A