high measured current from stop 2 mode in stm32l412

[Yucef0]

Using a custom board with the stm32l412 chip, after entering stop 2 mode, it measures 380uA instead of about 0.72uA without RTC as stated in datasheet.

I know using custom board would get the current consumption to get a bit higher but this is almost ridiculous difference, so I expect that something is off, but not sure where to check.

Thanks in advance.

[KDJEM.1]

Hello ​@Yucef0 and welcome to the community;

 

Make sure that all free pins as set analog (to optimize the power consumption). For more information, I recommend you to look at How to minimize the power consumption in low power mode: An example using NUCLEO-F401RE board | Community article.

Also, I advise you to look at PWR_STOP2 and check your code.

Please let me know if the issue is solved or not?

 

Thank you.

Kaouthar