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A bias-insensitive trigger circuit for bigfet esd supply protection
A bias-insensitive trigger circuit for bigfet esd supply protection
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机译:偏置不敏感的触发电路,用于大ESD ESD电源保护
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摘要
Embodiments of an electrostatic discharge (ESD) protection device and a method of operating an ESD protection device are described. In one embodiment, an ESD protection device for an integrated circuit (IC) device includes a bigFET configured to conduct an ESD current during an ESD event and a trigger device configured to trigger the bigFET during the ESD event. The trigger device includes a slew rate detector configured to detect the ESD event, a driver stage configured to drive the bigFET, and a keep-on latch configured to keep the driver stage turned on to drive a gate terminal of the bigFET with a driving voltage that is insensitive to a pre-bias on a drain terminal or a source terminal of the bigFET. Other embodiments are also described.
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