nPM1300 sporadic power on issue

RE: nPM1300 sporadic power on issue

helsing — Tue, 12 Mar 2024 10:12:19 GMT

[quote user=""]Do you have any idea why it does that? Have you noticed it already?[/quote]

This does not look like anything we have seen before. And it does not look like the errata you reference.

The mentioned VBAT vs BUCK2 scope trace would give us more insight into the issue.

[quote user=""]I removed the patch and test them again. All the boards were working afterwards.[/quote]

How do you supply the boards? Did you use the same supply before and after?

RE: nPM1300 sporadic power on issue

helsing — Tue, 12 Mar 2024 10:06:14 GMT

[quote user="AurelieDuval"]Here is the schematic.[/quote]

I have reviewed the schematic which looks OK.

RE: nPM1300 sporadic power on issue

helsing — Mon, 11 Mar 2024 14:04:32 GMT

Woud you be able to get a good scope trace of VBAT vs BUCK2?

RE: nPM1300 sporadic power on issue

helsing — Fri, 08 Mar 2024 15:24:33 GMT

Thanks, I will look into this.

RE: nPM1300 sporadic power on issue

AurelieDuval — Thu, 07 Mar 2024 12:46:49 GMT

Here is the schematic. The issue occurs before I change any default configuration to the PMIC:

RE: nPM1300 sporadic power on issue

helsing — Thu, 07 Mar 2024 12:05:39 GMT

Woudl you be able to share some more details of your project? It would be great to see the schematic and configurations. We could make the ticket private unless you would like to share this publicly.

RE: nPM1300 sporadic power on issue

helsing — Thu, 07 Mar 2024 11:50:50 GMT

Hi Aurelie,

Just letting you know we have started looking into this.

Best regards,
Håkon