TDA7563ASM_08 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

TDA7563ASM_08

4 x 50W multifunction quad power amplifier with built-in diagnostics feature

STMicroelectronics 

Diagnostics functional description

TDA7563A

by an I2C reading. This is to ensure continuous diagnostics throughout the car-

radio operating time.

– To check the status of the device a sampling system is needed. The timing is

chosen at microprocessor level (over half a second is recommended).

Figure 25. Restart timing without diagnostic enable (permanent) - Each 1ms time, a

sampling of the fault is done

Out

1-2mS

1mS

1mS 1mS

1mS

Overcurrent and short

circuit protection intervention

(i.e. short circuit to GND)

t

Short circuit removed

Figure 26. Restart timing with diagnostic enable (permanent)

1-2mS

100/200mS

1mS

1mS

Overcurrent and short

circuit protection intervention

(i.e. short circuit to GND)

t

Short circuit removed

16/35

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