公开(公告)号：US11574902B2

公开(公告)日：2023-02-07

申请号：US16264065

申请日：2019-01-31

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Eung Jung Kim ,  Kyle Clifton Schulmeyer ,  Sualp Aras ,  Md Abidur Rahman ,  Xiaochun Zhao

IPC: G05F1/565 ,  H01L27/02 ,  H02H9/04

Abstract: A system includes a clamp network coupled between an input and an output and configured to clamp a voltage between the input and the output to a first clamp voltage based on the presence of a trigger signal and to a second clamp voltage based on the absence of the trigger signal. The second clamp voltage is greater than the first clamp voltage and the first clamp voltage is less than a breakdown voltage of the power transistor device. A detector circuit is coupled to the input and the output. A power transistor device may also be coupled between the input and the output. The detector circuit is configured to detect a pulse signal at the input or the output while the power transistor device is off and to generate the trigger signal for a time interval based on detecting the pulse signal.

公开(公告)号：US09166402B2

公开(公告)日：2015-10-20

申请号：US13741341

申请日：2013-01-14

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Kyle Clifton Schulmeyer ,  Cynthia Ann Torres

IPC: H02H9/04

CPC classification number: H02H9/046

Abstract: ESD protection apparatus disclosed herein include an ESD trigger circuit to sense the occurrence of an ESD event and an ESD discharge device to provide a low impedance path to ground through which to discharge energy associated with the ESD pulse. Some embodiments also include a VDD turn-on clamp to prevent the ESD discharge device from switching to a conductive state during a VDD power-on event. Some embodiments further include a VDD glitch clamp to prevent a switching pulse triggered by a transient disruption in the VDD supply from propagating to the ESD discharge device and causing the ESD discharge device to conduct in the absence of an ESD event.

Abstract translation: 本文公开的ESD保护装置包括用于感测ESD事件的发生的ESD触发电路和ESD放电装置，以向地面提供低阻抗路径，以通过该路径放电与ESD脉冲相关联的能量。 一些实施例还包括VDD导通钳位电路，以在VDD上电事件期间防止ESD放电装置切换到导通状态。 一些实施例还包括VDD毛刺夹，以防止由VDD电源中的瞬态中断触发的开关脉冲传播到ESD放电装置，并且使ESD放电装置在没有ESD事件的情况下导通。

公开(公告)号：US20140198415A1

公开(公告)日：2014-07-17

申请号：US13741341

申请日：2013-01-14

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Kyle Clifton Schulmeyer ,  Cynthia Ann Torres

IPC: H02H3/22

CPC classification number: H02H9/046

Abstract: ESD protection apparatus disclosed herein include an ESD trigger circuit to sense the occurrence of an ESD event and an ESD discharge device to provide a low impedance path to ground through which to discharge energy associated with the ESD pulse. Some embodiments also include a VDD turn-on clamp to prevent the ESD discharge device from switching to a conductive state during a VDD power-on event. Some embodiments further include a VDD glitch clamp to prevent a switching pulse triggered by a transient disruption in the VDD supply from propagating to the ESD discharge device and causing the ESD discharge device to conduct in the absence of an ESD event.

Abstract translation: 本文公开的ESD保护装置包括用于感测ESD事件的发生的ESD触发电路和ESD放电装置，以向地面提供低阻抗路径，以通过该路径放电与ESD脉冲相关联的能量。 一些实施例还包括VDD导通钳位电路，以在VDD上电事件期间防止ESD放电装置切换到导通状态。 一些实施例还包括VDD毛刺夹，以防止由VDD电源中的瞬态中断触发的开关脉冲传播到ESD放电装置，并且使ESD放电装置在没有ESD事件的情况下导通。