【应用笔记】汽保与该RBOxx系列 AN555 APPLICATION NOTE AUTOMOTIVE PROTECTION WITH THE RBOxx SERIES INTRODUCTION The harsh electrical environment in automobiles poses problems for the electronic modules present. Even in normal operation, large positive and negative overvoltages due to switch bounce, ignition coil switching and other phenomena are a potential cause of destruction. An additional hazard is the possibility of supply reversal, perhaps caused by faulty wiring. Another danger is the "load dump" effect, caused by battery disconnection while the engine is running. Th……