Xbee3 sleep current

Question

Hi,

I am working with a Xbee3 Zigbee 3.0TH running 100A.

I am trying to achieve near the specified 2uA sleep current (3.3V), but I have not been able to get close.

I am running mostly default settings with a 5000ms sleep and I am getting down to ~37uA (@~3.4V).

Has anyone else been able to achieve near the specified power down rating of 2uA?

Thank you!

Answer 1

You can. You just need to set all unused inputs to disable and disable any unused internal pull up resistors.

Comments

Thank you very much for your response. I was able to achieve the ~2uA based on your advice.

A worthy note: I setup a almost default setting test and changing D8 to disabled was the key to achieving the 2uA sleep with no other changes other then sleep times. I also did find a documentation note that validates this, "Note If D8 is configured as DTR/Sleep_Request (1), the line will be left floating while the device sleeps. Leaving D8 set to 1 and the corresponding pin not connected to anything external to the device may result in higher sleep current draw."

https://www.digi.com/resources/documentation/digidocs/90001539/#reference/r_cmd_d8.htm

Best practice will be following mvut's advice and disable anything unused but this serves as a proof of concept of minimal requirements to meet the specified sleep current.