Power consumption - DWM3001C

[Braxatoris]

Hello guys,

Im developing RTLS with DWM3001C and right now Im working on personal tag powered by CR2450. So naturally, power consumption should be as low as possible.

So far I managed it to these levels - idle not moving - around 15-20 uA, after moving tag UWB TX is around 22-30 mA spike, and periodically there are every 100ms spikes of 60 uA +/- from accelerometer sampling.

Over past year, i tried everything possible but this is as low as it gets... from what i read it should be able to go 5 uA +/- ? 

Any help will be appreciated :) 

IDLE consuption 

Pinging

[Simonr]

Hi

Can you share more details on what SDK version you're using and what else is in use on the board? The floor current seems to be around 9-10µA, so there's definitely something else drawing current from the VDD net here (assuming you measure current consumption from the VDD supply on the board. That could be a leakage current from another GPIO or from another onboard device/sensor. Are you using other external components than the LIS2DH here? Are you sure the LIS2DH goes to sleep correctly?

Best regards,

Simon