P0.25 and P0.26 more likely than other pins to oscillate if left floating?

RE: P0.25 and P0.26 more likely than other pins to oscillate if left floating?

mathiaso — Tue, 30 Apr 2024 13:08:09 GMT

Ok. That was quite an increase. And that only was present on 5 % of the devices with P0.25 and P0.26 floating? Did you try resoldering any of those?

I'm happy to hear it is solved now, at least.

RE: P0.25 and P0.26 more likely than other pins to oscillate if left floating?

epower — Mon, 29 Apr 2024 16:28:12 GMT

That's correct. I'm not seeing increased current draw anymore now that I'm not leaving any pins floating. The amount of current varied from device to device, but was as high as 50uA in the worst cases.

RE: P0.25 and P0.26 more likely than other pins to oscillate if left floating?

mathiaso — Mon, 29 Apr 2024 14:03:30 GMT

What numbers kind of numbers are we talking about for the increased current draw?

And now you don't see the increased current consumption in any of the devices anymore, right?

RE: P0.25 and P0.26 more likely than other pins to oscillate if left floating?

epower — Fri, 26 Apr 2024 22:41:34 GMT

Thanks Mathias,

Because I did see these pins in particular cause increased current draw in System OFF mode when they were floating, do you think I should be concerned about the integrity of these particular parts?

RE: P0.25 and P0.26 more likely than other pins to oscillate if left floating?

mathiaso — Fri, 26 Apr 2024 14:24:38 GMT

Hi, Evan.

No, Errata 138 should not lead to increased current consumption in System OFF.

Best regards,
Mathias