ZHCSOZ3 September 2021 TLIN1024A-Q1
PRODUCTION DATA
GND1 and GND2 are the ground connections for LIN1/2 and LIN3/4 channels respectively. VSUP1 is referred to GND1 and VSUP2 is referred to GND2. 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).