Issue of nRF54L15-QFAA reset when air discharge 8KV

[Tom.Fu]

Hi Support Team 

Is it normal that nRF54L15-QFAA reset when air discharge 8KV? But nRF52 hasn’t this issue under the same conditions.Many thanks.

[ketiljo]

The ESD rating of this is 1kV, see https://docs.nordicsemi.com/bundle/ps_nrf54L15/page/chapters/abs_max_ratings/doc/abs_max_ratings.html

For levels above this, additional protection devices are needed. 

[zhang.sandy]

Hi Support Team.

Is there any additional protection devices recommend? i measured it, it is just reset pin issue, i removed R7, the ESD is pass, can we add a ESD diode to this pin, or can we change the C13 from 3.9pF to 0.1uF.  

[Tom.Fu]

Hi Ketiljo

Do you have any suggestions for this issue? Many thanks.

[Turbo J]

Not without looking at the complete layout, which you probably don't want to put into a public ticket.

I'm not sure how much nordic can help you here, you should also talk to the engineers at your testing house. They usually have migitation ideas for EMV issues.