nrf5340 sleep currrent consumption

[Lavanya_Manohar]

In our custom board nrf5340-nrf7002, tried system_off(C:\ncs\v2.6.1\zephyr\samples\board\nrf )sample to check power consumption. 

But it measures 0.60mA

Is there any config need to address? please provide debug steps

[Priyanka]

Hi Lavanya,

Do you have any peripherals connect to the 5340? Have you made any hardware changes?

Regards,

Priyanka

[Lavanya_Manohar]

Hi priyanka,

Priyanka said:

Do you have any peripherals connect to the 5340?

In our custom board, nrf7002 is connected to 5340 but we keep it OFF by hardware control.
Then we have one capacitve interrrupt connected to 5340, we have isolate the interrupt and then measures reduced to 0.46mA. 

[Priyanka]

Hi Lavanya,

Here are a few of my suggestions:
PLease check that all the unused GPIOs are properly configured. And also ensure that all peripherals that are not used are disabled. Is your firmware configured to low power modes? When the nRF7002 is connected to the nRF5340, even if it's OFF, this can still affect the power consumption. 

Regards,

Priyanka