TRANSIENT VOLTAGE SUPPRESSOR FOR MULTIPLE PIN ASSIGNMENTS
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United States of America Patent
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Issued Date -
Jan 19, 2012
app pub date -
Jul 15, 2010
filing date -
Jul 15, 2010
priority date (Note) -
Abandoned
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Abstract
A transient voltage suppressor (TVS) for multiple pin assignments is disclosed. The suppressor comprises at least two cascade-diode circuits in parallel to each other and an electrostatic-discharge clamp element in parallel to each cascade-diode circuit and connected with a low voltage. One cascade-diode circuit is connected with a high voltage, and the other cascade-diode circuits are respectively connected with I/O pins. Each cascade-diode circuit further comprises a first diode and a second diode cascaded to the first diode, wherein a node between the first diode and the second diode is connected with the high voltage or the one I/O pin. The design of the present invention can meet several bounding requirements. It is flexible different pin assignments of TVS parts.
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