Is it normal for the HL7800 to consume power when it’s hibernating in an erratic way?
We have configured the HL7800 in the following way:
For 2-wired UART (TX/RX),
eDrx Hibernate mode, we set:
We allow a 10 minute calibration time, or simply wait 10 minutes or more to allow it to settle down.
We find that the HL7800’s power consumption will drop down into the uA but every few seconds it will jump and reach between 10 and 20 mA every 1-10 seconds.
It never seems to just settle down for any kind of hibernation period.
The pulses make the average consumption of our low power system difficult to achieve. There’s no other powered device on this 3.7V power rail except for the active GPS antenna (which is switched off), and a low power level converter (from the 1.8V VPGIO)