【nRF52832】When use 1.8v power supply，power consumption reach to 14mA current.

[FrankBi]

dears ,

Attached is our design. when using 1.8V power supply.by default ,current is 14mA.

Would you please help to  check it? Thanks a lot.

[FrankBi]

Thanks for your supporting.

It is average current. method is adding current meter to supply circuit.protocol stack is S132 7.0.1. 

[FrankBi]

Is there any suggestion for this case? Thanks a lot.

[Marjeris Romero]

For average current 14mA sounds a bit high. Are you using any other peripherals in your design using the same supply circuit?

[Marjeris Romero]

A couple more of suggestions:

What kind of software or software example from the nRF5 SDK are you running on the chip?

And can you test using this file and measure the current consumption then?
system_on_sleep_nrf52832.hex

You also need to check if you multimeter/current meter has the capacity to measure the average current accurately, we recommend using the PPK2 for measuring power consumption on our chips:

https://www.nordicsemi.com/Software-and-tools/Development-Tools/Power-Profiler-Kit-2

[FrankBi]

Dears,

Because we use system_on_sleep_nrf52832.hex ,this image could get almost the same result.

about 14mA current.so we guest HW issue.also,this new design HW changed, bring a LDO ,power to sensor.

thanks.

[Marjeris Romero]

Do you have many sensors and other devices that also draw current on your PCB? Perhaps it's not only the nRF chip drawing current. If you want your whole schematic reviewed you can create a private ticket and share your files with us.

[FrankBi]

OK,got it. I will do it.thanks Msromero.