| 摘要 |
An ESD protection circuit, arranged between a first and second potential terminals, has a RC branch, a voltage adjuster circuit, and an ESD discharge transistor. The RC branch includes a resistor and a capacitor series connected from the first to the second potential terminal. The voltage adjuster circuit has a plurality of inputs connected to the RC branch, and the first and second potential terminals, and an output connected to a gate of the ESD discharge transistor to adjust the gate voltage thereof for obtaining a uniform turn on and optimal ESD robustness. The voltage adjuster circuit mainly includes a plurality of transistors that enable to effectively adjust the gate voltage with respect to high level of ESD stress.
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