Clarifications on measuring low current to M.2 port using power monitor IC on Jetson TX2

[WayneWWW]

Hi,

The shunt -resistor could affect the critical current limit.

Critical Current Limit Jetson TX2

To clarify I would like to limit our inrush current to 3A when powering off a 12V battery. Does the 0.1638V change with a different input voltage? If not then I will just change the shunt resistance to 56 to acheive a critical current of 2925mA. I would have expected to need to edit “/sources/hardware/nvidia/platform/t18x/common/kernel-dts/t18x-common-platforms/tegra186-quill-p3310-1000-a00-powermon.dtsi” as with the TX1 but I suppose this “fragement-pmon” overides the other powermon file. T…