7.3.4.7 Loss of GND Protection

When loss of GND occurs, output is turned off regardless of whether the input signal is high or low.

Case 1 (loss of device GND): Loss of GND protection is active when the Tab, I_{C_GND}, and current limit GND are one trace connected to the board GND, as shown in Figure 38. Tab floating is also a choice.

Figure 38. Loss of Device GND

Case 2 (loss of module GND): When the whole ECU module GND is lost, protections are also active. At this condition, the load GND remains connected.

Figure 39. Loss of Module GND