High Sleep current on custom board

[Rajat]

Hi everyone ,

I have a custom PCB using nrf52840 and i measured the current consumption using PPK(power profiler kit) . The sleep current value that it show is 4.5mA.

However , if  i program the same software on PDK , the current comes out around 40uA. 

I am putting the board directly into sleep by turning off all the LEDs and Relays.

This is the piece of code that i am using.

for PDK it shows 49uA and for my custom board it shows 4.5mA

Thanks 

Rajat

void main(void)
{
   logger_init (); //Turn of everything

  

  while (1)
        {
            nrf_pwr_mgmt_run ();
            app_sched_execute ();
        }
        
}

[Jared]

Hi,

This can be related to the design of your custom board. Could you share the schematic and layout files?

Regards

Jared 

[Rajat]

Hi ,

The issue is resolved now , the problem was with the PPK wiring.