About nRF54L idle current

RE: About nRF54L idle current

runsiv — Wed, 18 Jun 2025 09:11:35 GMT

I would suggest doing a HW review now as summer vacation vacation is coming up and there will be longer wait times on HW reviews. Just in case there is anything that we recommend that you change in your design. Just create a new ticket where you ask for a review.

We don't have any numbers for the 54L15 as far as I know. But you can see here for the 52840 differences in typical current for different crystals https://docs.nordicsemi.com/bundle/ps_nrf52840/page/clock.html#ariaid-title38

Regards

Runar

RE: About nRF54L idle current

H-ogawa — Wed, 18 Jun 2025 02:05:12 GMT

Hi,Runar

Thak you for reply.

[quote userid="122502" url="~/f/nordic-q-a/121950/about-nrf54l-idle-current/539556"]There can be some variation in power due to different crystals . [/quote]

I understood. Does this affect the radio Tx current as well as the idle current?

A hardware review has not been done yet. The crystal will also be different from the one in the DK board.
Would it be better to review it once?

Regards

Hiroki

RE: About nRF54L idle current

runsiv — Tue, 17 Jun 2025 12:53:15 GMT

The numbers look fine to me. I noticed you have different load caps values in your overlay. Have you done hardware review yet? There can be some variation in power due to different crystals .
If you have not done a review I would recommand that you do that, and attach the datasheet of the crystals you use

Regards

Runar

RE: About nRF54L idle current

H-ogawa — Mon, 16 Jun 2025 23:35:14 GMT

Hi,Runar

I Understood.
I look forward to hearing from you.

Best regards,

Hiroki

RE: About nRF54L idle current

runsiv — Mon, 16 Jun 2025 12:25:33 GMT

Hi Hiroki

I will take over the case from Sigurd and get back to you tomorrow.

Regards

Runar

RE: About nRF54L idle current

H-ogawa — Sun, 15 Jun 2025 23:38:14 GMT

Hi,Sigurd

I know this because I have checked the value in the data sheet. I would like to confirm whether 3.5uA is within the range of variation compared to the typical 3.1uA for Ion_IDLE8.

Best regards,

Hiroki

RE: About nRF54L idle current

Sigurd Hellesvik — Thu, 12 Jun 2025 09:25:21 GMT

[quote user="H-ogawa"]When I measured it at 3.0V, it was about 3.5uA. Would this be considered within the standard range?[/quote]

From Current Consumtion, which uses 3V.

See:

RE: About nRF54L idle current

H-ogawa — Tue, 10 Jun 2025 15:01:11 GMT

Hi,Sigurd

Thank you for your reply.
It was my mistake and the value of 4.0uA was when I applied a voltage of 3.3V.
When I measured it at 3.0V, it was about 3.5uA. Would this be considered within the standard range?

Best regards,

Hiroki

RE: About nRF54L idle current

Sigurd Hellesvik — Fri, 06 Jun 2025 06:33:14 GMT

Hi,

Check out RE: Not able to achieve minimum sleep current on NRF54L15

Regards,
Sigurd Hellesvik