Due to the consumption of RTC when the Vin is off is very high in the JAGXi.
I want to use a rechargeable coin cell LIR2032.
I know there is a charging circuit in the JAGXi SOM, but I can’t find any documentation describing the internal diagram in detail.
May I know what circuit can I refer to?
Or do I just need to connect a rechargeable battery on the VCC_RTC pin? Is a current limiting resistor required in the path? I don’t think I need a diode, that would block the current from charging the battery in reverse, right?
Can you draw me a simple circuit diagram?
Just need to add a battery to the pin as listed in P2822 schematic: http://developer.nvidia.com/embedded/dlc/jetson-xavier-developer-kit-carrier-board-design-files-b03
Thanks for the reply.
But I can’t download anything from the link.
Possibly an invalid link?
I just want to know if there is a current limiting resistor in series in the path?
You can search that in DLC: https://developer.nvidia.com/embedded/downloads
Thanks a lot.
Another thing, I am using a 3.6 volt LIR2032 rechageable coin battery. Is the voltage suitable for application?
What is the maximum charging voltage that can be set?
I can now set the voltage from 1.2V to 3.5V to charge the battery.
I found that I couldn’t set the voltage higher than 3.5V.
Even though I set it to 3.7V it was still 3.4V which I measured.
As you can see in datasheet: The backup cells must provide a voltage in the range 2.5V to 3.5V. These will be charged with a constant current, and a constant voltage charger that can be configured between 2.5V and 3.5V (constant voltage) output and 50 uA to 800 uA
This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.