2024-10-09 05:11 AM - last edited on 2024-10-09 07:30 AM by Imen.D
Hello there,
We are designing the STM32U535 to operate in a low-power configuration. According to the datasheet, the current consumption in Run mode is 16.3 μA/MHz at 3.3 V, which is quite low. However, when measuring the actual device, even after subtracting the current used by the components on the board, we observe the following:
These values indicate that a significant amount of current is being consumed.
The main clock settings are as follows:
Given this configuration, what settings are necessary to achieve further power consumption reduction?
2024-10-09 05:55 AM - edited 2024-10-09 05:57 AM
Hello @Ka_T
There are different ways to slow down the consumption:
To optimize Power Consumption on STM32U5, I advise you to follow this Application note:
Using LPBAM mechanisms optimizes automatically the Power consumption.
For more details, I suggest you refer to these resources:
I hope these resources are helpful for you.
2024-10-09 07:06 AM
Hello Imen,
Thank you for your response. I understand that LPBAM is primarily focused on operating in STOP mode while maintaining functionality.
While my main focus is on controlling in run mode, are there any effective power-saving strategies for run mode? Does the LPBAM concept also include run mode?
Thanks
Ka_T
2024-10-09 08:10 AM
Ah Ok, so you are using Run mode ! In this case, you can check these articles :
LPBAM is supported in Stop 2 mode (not for Run mode)
2024-10-09 06:14 PM