I am already using LTC4380-4 at DC power input to my system. Configured for V_CLAMP=39.5V and I_OC=5A. I also want to have system-level power monitoring, and I have been looking at LTC2946 for this function.
My question is this: can LTC4380-4 and LTC2946 share the same current sense resistor (currently 10mOhm in the LTC4380-4 block)?
You should be able to share the current sense resistor without any issues.