Current consumption in low power modes not as per data sheet

[PESHWA]

Using Stm32l4r5zi-p nucleo board current consumption is not matching with datasheet it is much higher like 130 -200 mA higher let me know any idea to reduce the current consumption

[KDJEM.1]

Hello @PESHWA​ and welcome to STCommunity 🙂 ,

In which mode your MCU operating?

Please make sure that all free pins are set as Analog to optimize the power consumption. For that, I advise you to take a look to this FAQ.

When your question is answered, please close this topic by choosing Select as Best. This will help other users find that answer faster.

Thank you

Kaouthar

[PESHWA]

In RUN mode and sleep mode both mode are not matching

yes all pin are free and set to analog but still not matching with any frequency let me know any other possibilities to make reduce the current consumption thank you

[KDJEM.1]

Hi @PESHWA​ ,

You can look into STM32CubeL4 package, there is several examples around power mode:

• PWR_RUN_SMPS
• PWR_STANDBY_SMPS
• PWR_STOP0_SMPS

I advise you to start with an available example with a STM32L4R5ZI- Nucleo board.

I hope this help you!

Kaouthar

[PESHWA]

yes we are using the same example still not able fetch the correct data

[Billy OWEN]

Hi @PESHWA​ 

The forum moderator had marked your post as needing a little more investigation and direct support. An online support case has been created on your behalf, please stand by for just a moment and you will hear from us.

Regards,

Billy