Power Profiler Kit II with nRF52833

RE: Power Profiler Kit II with nRF52833

Øyvind — Fri, 27 Jan 2023 09:45:21 GMT

Hello, sorry for the late reply. Had to test this myself and discuss with a colleague.

The spikes that you see are refresh mode spikes which are completely fine. The average current consumption is what you want to look at. 3,35µA is a little high, you should see more down to 0,6-0,8µA. Can you try to switch SW6 to nRF Only?

I tested this here aswell:

The signal is "noisy" but this can be due to the USB connection. If you have an external power source to connect External Supply (P21) it should give less noise.

Kind regards,
Øyvind

RE: Power Profiler Kit II with nRF52833

Bryan — Fri, 20 Jan 2023 14:15:42 GMT

Yes, I meant 11ua spikes. I shouldn't post to devzone at the end of a 10 hour day. ;-)

RE: Power Profiler Kit II with nRF52833

Øyvind — Fri, 20 Jan 2023 12:48:01 GMT

Hello,

Happy to hear that you found the auto-scale setting.

[quote user="bryano"]However, I am curious what the approximate 11ma current spikes are while in system off mode.[/quote]

Do you mean the 11µA spikes that you describe in your second image?

Kind regards,
Øyvind

RE: Power Profiler Kit II with nRF52833

Bryan — Thu, 19 Jan 2023 21:16:18 GMT

Stupid mistake. I didn't notice it had auto-scaled, ignore my question. However, I am curious what the approximate 11ma current spikes are while in system off mode.