TDA7567PD View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

TDA7567PD

4 x 50 W differential quad power amplifier with built-in diagnostics features

STMicroelectronics 

Diagnostics functional description

TDA7567PD

Figure 13 shows the load impedance as a function of the peak output voltage and the

relevant diagnostic fields.

This feature is disabled if any overloads leading to activation of the short-circuit protection

occurs in the process.

Figure 13. Current detection high: load impedance |Z| vs. output peak voltage

Load |z| (Ohm)

50

Low current detection area

30

(Open load)

20

D5 = 1 of the DBx byres

Iout (peak) <250mA

Iout (peak) >500mA

10

IB2(D7) = 0

High current detection area

5

(Normal load)

D5 = 0 of the DBx bytes

3

2

1

1

2

3

4

5

6

7

8

Vout (Peak)

Figure 14. Current detection low: load impedance |Z| vs. output peak voltage

Load |z| (Ohm)

50

Low current detection area

30

(Open load)

20

D5 = 1 of the DBx byres

Iout (peak) <125mA

Iout (peak) >250mA

10

IB2(D7) = 1

High current detection area

5

(Normal load)

D5 = 0 of the DBx bytes

3

2

1

0.5

1

1.5

2

2.5

3

Vout (Peak)

3.5

4

16/30

Doc ID 16903 Rev 1

Share Link: