发明名称 |
ELECTROSTATIC DISCHARGE TRIGGER CIRCUITS FOR SELF-PROTECTING CASCODE STAGES |
摘要 |
Electrostatic discharge (ESD) protection circuits for self-protecting cascode stages are disclosed. In one example, an ESD protection circuit is described. A cascode stage is configured to selectively couple an output pad to a reference terminal. An ESD sensor may detect a change in voltage indicative of an ESD event occurring at the output pad, causing a gate drive to turn on the cascode stage to conduct ESD current in response to detection of the ESD event at the output pad. A leakage blocker is also included to prevent leakage current from the cascode stage to the gate drive while there is not an ESD event.
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申请公布号 |
US2009040678(A1) |
申请公布日期 |
2009.02.12 |
申请号 |
US20080186323 |
申请日期 |
2008.08.05 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
YANG JINYU;WANG DENING;ROMAS, JR. GREGORY GEORGE |
分类号 |
H02H3/22 |
主分类号 |
H02H3/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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