VDDC

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VDDC

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Frank6
Contributor I

Hi all

        When we do not add a diode between VDDC and VDDA, VDDC may reach 13.5V during the plug-in process, which is the same as the power supply voltage. Is 13.5V caused by the failure of the internal adjustment mechanism of the chip? Then VDDC is stable at 5V What is the mechanism and why overvoltage will make it fail? If I can explain it, we would be very grateful

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danielmartynek
NXP TechSupport
NXP TechSupport

Hi Frank,

Please find my answer here:

https://community.nxp.com/t5/S12-MagniV-Microcontrollers/Diode-action/td-p/1172868

 

Regards,

Daniel

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