JAJSF71B April 2018 – December 2019 TLIN1024-Q1
GND1/2 are the device ground connections. The device can operate with a ground shift as long as the ground shift does not reduce VSUP1/2 below the minimum operating voltage. If there is a loss of ground at the ECU level, the device has a low leakage from the LIN pin, which does not load the bus down. This is optimal for LIN systems in which some of the nodes are unpowered (ignition supplied) while the rest of the network remains powered (battery supplied).