nRF52810(QFN32) - pin 32 - vdd

[pierre12345]

in application design , this pin is not connected to VDD , but application board works well ,

application's power range is 2.2V - 3.3V (AAA batteries), max current consumption is around 7mA.

so is there a risk for application?

and what is the role of this pin ?

[Simonr]

Hi Pierre

I've gotten word from one of our hardware engineers, and here is a paraphrase of their thoughts on the matter:

There is a clear risk of degraded performance if pin 32 is not connected to the external power supply. We haven't done any testing with such a configuration and can't say anything about which parameters may be degraded by how much, nor about the probability of malfunction. We strongly advise against using the device like this.

I'm sorry that I can't be any more specific, but it seems to me like you should go about changing the device layout and rather doing the certification once more.

Best regards,

Simon

[pierre12345]

Hi Simon

Thank you for your kind reply

but still no way to understand how this Pin is connected internally ? if this PIN is connected to other vdd internally ?

best regards