About sleep current in STOP mode

Sourdev — Fri, 12 May 2023 13:12:25 GMT

I am using the S9KEAZN64AMLC microcontroller. I put the device into STOP mode using wfi() instructions. In stop mode, MCU consumes 130uA with a supply voltage of 5V.

In the datasheet, it is mentioned that the stop current is 2uA.

How I will get 2uA current?

Re: About sleep current in STOP mode

Robin_Shen — Mon, 15 May 2023 03:10:26 GMT

Hi Sourdev,

Do you use the NXP development board to test, or test the circuit board designed by yourself?

If you are using FRDM-KEAZN32 board, since the convenience of low-power testing is not considered, I am afraid you have to remove several external resistors to get the correct current consumption. You can refer to the discussion in how to achieve the KEA128 lowest static current in STOP mode

If you use circuit board designed by yourself, then please check the external circuit to avoid those case:

Best Regards,
Robin
-------------------------------------------------------------------------------
Note:
- If this post answers your question, please click the "Mark Correct" button. Thank you!

- We are following threads for 7 weeks after the last post, later replies are ignored
Please open a new thread and refer to the closed one, if you have a related question at a later point in time.
-------------------------------------------------------------------------------

topic Re: About sleep current in STOP mode in Kinetis Microcontrollers

About sleep current in STOP mode

Re: About sleep current in STOP mode