Current consumption issue with the Custom board

RE: Current consumption issue with the Custom board

ketiljo — Wed, 18 Apr 2018 13:58:42 GMT

Must be a mechanical or solder issue then.

RE: Current consumption issue with the Custom board

venu gopal — Wed, 18 Apr 2018 13:51:19 GMT

I have made all floating pins as output and made as low.

Given separate external supply for Nordic chip and isolated from everything else

i got 1.8(mA) current consumption

what can i do next......?????

RE: Current consumption issue with the Custom board

ketiljo — Wed, 18 Apr 2018 10:51:04 GMT

Sounds like a floating input. Make sure you have a defined logic level on all inputs to the nRF52.

Also isolate VDD_nRF and use a external power supply.

cheers,

Ketil

RE: Current consumption issue with the Custom board

venu gopal — Wed, 18 Apr 2018 09:42:37 GMT

Hi Ketiljo

we removed every component apart from nRF52810 and battery circuit from our board.

our custom board now contain only nordic chip and battery circuit which is shown in schematic.

Now we are getting arround 2.5(mA).

we are trying to reduce power for past 3 days.

In our custom board only beacon pogram is running

Give some software solution also to reduce power consumption

we require current consumption in micro-amps.

Thanks and Regards,

venu

RE: Current consumption issue with the Custom board

ketiljo — Wed, 18 Apr 2018 08:10:34 GMT

Hi Venu

Do you measure the high current draw on the whole board or just the nRF52810? If it's the whole board, are you sure all the other ICs are turned off or is in low power mode?

best regards,

Ketil Aas-Johansen