DocID028961 Rev 1

21/34

TDA7562BEP

Application suggestion

33

5

Application suggestion

5.1

PC-board hints

The exposed pad package doesn't require any particular care compared with the ST

standard Flexiwatt package. For particular PCB configurations, in order to maximize the

rejection against any disturbances coming from the battery line (SVR), it is suggested to use

one of the following IC metal slug (heat-sink) connections:



leave the slug simply electrically isolated from the PCB ground;



in case of 2 layers board, connect the slug to the PCB power ground (P-GND) and not

to the signal ground (S-GND).

In case of a PCB with a layer dedicated to grounding (wide / diffused GND area with no

distinction between P-GND and S-GND) connect the slug to the common board ground.