TDA7563PD View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

TDA7563PD

Multifunction quad power amplifier with built-in diagnostics features

STMicroelectronics 

Diagnostics functional description

TDA7563PD

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 24. 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

t(s circuit protection intervention

(i.e. short circuit to GND)

t

Short circuit removed

roduc ) Figure 25. Restart timing with diagnostic enable (permanent)

te P ct(s 1-2mS

100/200mS

1mS

1mS

- Obsolete Produ Overcurrent and short

) le circuit protection intervention

OObbssoolleettee PPrroodduucctt((ss) - Obso (i.e.shortcircuittoGND)

t

Short circuit removed

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