For the KL03 in QFN pkg., should the center pad be grounded?

[brenconsult]

The datasheet doesn't appear to address the question of how to handle the exposed center pad of the QFN packages for the KL03 MCUs.  Ground it?  Leave it floating?

Thanks,

Scott

[Stano]

Hi Scott,

yes the exposed center pad has to be grounded.

Best Regards,

Stano.

[brenconsult]

Thank you!  Is this documented some place, and I just missed it?

Scott

[EarlOrlando · Accepted solution]

Hello Scott,

I think that the Application Note AN1902​ is what you are looking for. It has relevant information regarding hardware considerations for the QFN packages. Please take a look specially in the section 4.2.2 Thermal/Electrical Pad Guidelines.

Best regards,

Earl Ramírez.

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