Why VDD pins need to be connected externally?

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User18151
Level 3
Level 3
First like received First solution authored
Hi all ,

Does anyone know Why VDD pins need to be connected externally ?

Thank you in advance
KR
Christine

#8042000 13175
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1 Reply
User18237
Level 5
Level 5
First solution authored First like received
Hi Christine,

Embedded voltage regulator (EVR) uses a close loop system to regulate the core voltage domain.
The VDD output pin is separated from the VDD feedback sense. If both pins are disconnected, the VDD output voltage may rise to VDDP3/2 ~ 1,7V, causing an over voltage condition.

Kind regards
Mr.AURIX™
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