Electrostatic Discharge (ESD) Protection with NPN Bipolar Transistors

摘要

The circuit for protecting the IC against electrostatic discharge includes an NPN transistor having a collector connected to the first I / O pad and an emitter connected to Vss. The Zener diode has a cathode connected to the first I / O pad, a base of the NPN transistor and an anode connected to both the first register. The other end of the register is connected to Vss.