Power consumption question

[Jay]

Hi,

I noticed that my current NRF52 based prototype is consuming 4.5mA as soon as I enable the BLE functionality, when its off its only 1.6mA

I send the chip to a sleep in he main loop whenever it does not have anything to do but this does not improve on the power consumtopn with ehabled BLE.

The high power consumption starts as soon as the BLE functionality gets enabled even when no data are sent or recived.

If I'm reading the datasheet correctly this is much to high.

Any ideas what may be the rason, any often done mistakes i should check for first?

Cheers

[Turbo J]

Is the debugger still connected via SWD?

[Jay]

No it shouldn't have been, but I wil try with the cable entierly unplugged just in case.

[haakonsh]

How exactly have you measured the current consumption?
we need details.

[Jay]

I used a 1 ohm schunt resistorand a this current shunt monitor: http://www.ti.com/lit/ds/symlink/ina216.pdf

Also I can confirm that unplugging the debuger cable and power cycling the board does no solve the issue.

[haakonsh]

Is the 1ohm shunt populated at R6? 
What peripherals and gpios are you using?