For unpowered conditions, the TCAN341x is designed to be a passive or no load to the CAN bus. This is because the bus pins were designed to have low leakage currents to not load the bus. This design consideration is critical if some nodes of the network are unpowered while the rest of the network remains operational.

For unpowered scenario, the logic pins also have low leakage currents so they do not load other circuits which may remain powered.