TDA7492E

Application information

DocID027638 Rev 1

13/24

resistance is shown in Table 11: "Max effective voltage of PLIMIT pin vs. power supply and

load".

Table 11: Max effective voltage of PLIMIT pin vs. power supply and load

Rload

Power supply

7 V

13 V

24 V

4 Ω

0.71 V

1.32 V

2.44 V

6 Ω

0.74 V

1.37 V

2.53 V

8 Ω

0.75 V

1.39 V

2.57 V

4.4

Mode selection

The three operating modes of the TDA7492E are set by two inputs: STBY (pin 20) and

MUTE (pin 21).

•

Standby mode: all circuits are turned off, very low current consumption.

•

Mute mode: inputs are connected to ground and the positive and negative PWM

outputs are at 50% duty cycle

•

Play mode: the amplifiers are active.

The protection functions of the TDA7492E are implemented by pulling down the voltages of

the STBY and MUTE inputs shown in Figure 5: "Standby and mute circuits". The input

current of the corresponding pins must be limited to 200 µA.

Table 12: Mode settings

Mode

STBY

MUTE

Standby

L(1)

X (don’t care)

Mute

H

L

Play

H

H

Notes: