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JCard.3
Associate II
December 3, 2024
Question

STM32U0 Startup current

Hi @Amel NASRI,

Thanks for sharing the info here.  I'm really interested in low power MCUs.  I do have one question:  where can I find information about the startup current draw of this part?  The datasheet has very good documentation on the supply current requirements in each low-power modes (6.3.5 Supply current characteristics).  But on an energy-harvesting system, the startup current might also be limited.  On my STM32L0 based designs, I noticed that the startup current was an order of magnitude higher than when running in low-power mode.  Is this also the case on the new STM32U0?  Is that documented anywhere?

Thanks!

Javier

This topic has been closed for replies.

6 replies

Amel NASRI
ST Technical Moderator
December 6, 2024

Question originally asked a a follow-up of New possibilities for the ultra-low power segment!

Better to discuss it separately.

-Amel

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JCard.3
JCard.3Author
Associate II
December 6, 2024

Thanks @Amel NASRI for curating the post.  Should I tag someone in particular for this question?

Cheers,

Javier

Amel NASRI
ST Technical Moderator
December 7, 2024

Hi @JCard.3 ,

we are aware of your request and will come back to answer it.

-Amel

PS: Internal tracking number of the request: 199335.

To give better visibility on the answered topics, please click on "Best Answer" on the reply which solved your issue or answered your question.
JCard.3
JCard.3Author
Associate II
December 30, 2024

Hi!

 

Just pinging this thread to see if anyone has been able to research this.

 

Thanks!

Javier

Amel NASRI
ST Technical Moderator
December 31, 2024

Hi @JCard.3 ,

As  you can see, I edited my previous reply adding the internal tracking number of the request.

That should be handled after vacation period.

-Amel

To give better visibility on the answered topics, please click on "Best Answer" on the reply which solved your issue or answered your question.
JCard.3
JCard.3Author
Associate II
December 31, 2024

Ah, super.  Thanks!  I'll keep monitoring this thread then.  Thanks and happy new year!