公开(公告)号：US20130201586A1

公开(公告)日：2013-08-08

申请号：US13756243

申请日：2013-01-31

Applicant: Texas Instruments Incorporated

Inventor： Cynthia Ann Torres ,  Timothy Alan Rost ,  Senthil Kumar Sundaramoorthy ,  Victor James Nuss

IPC: H02H9/04

CPC classification number: H02H9/046

Abstract: An electrostatic discharge (ESD)-triggered protection apparatus includes a first circuit and a second circuit. The first circuit includes an ESD trigger circuit to sense an ESD pulse and to generate a switching pulse responsive to the ESD pulse; a first ESD discharge device communicatively coupled to the ESD trigger circuit and responsive to the switching pulse to transfer a current generated by the ESD pulse to the ground rail; a control circuit that generates a control signal in response to the switching pulse. The second circuit includes at least one trigger cell buffer that is configured to receive the control signal and to control a second ESD discharge device such that the current generated by the ESD pulse is transferred to the ground rail.

Abstract translation: 静电放电（ESD）保护装置包括第一电路和第二电路。 第一电路包括用于感测ESD脉冲并响应于ESD脉冲产生开关脉冲的ESD触发电路; 第一ESD放电装置，其通信地耦合到所述ESD触发电路并且响应于所述开关脉冲将由所述ESD脉冲产生的电流传送到所述接地导轨; 控制电路，其响应于所述切换脉冲产生控制信号。 第二电路包括至少一个触发单元缓冲器，其被配置为接收控制信号并且控制第二ESD放电装置，使得由ESD脉冲产生的电流被传送到接地导轨。

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：US08982517B2

公开(公告)日：2015-03-17

申请号：US13756243

申请日：2013-01-31

Applicant: Texas Instruments Incorporated

Inventor： Cynthia Ann Torres ,  Timothy Alan Rost ,  Senthil Kumar Sundaramoorthy ,  Victor James Nuss

IPC: H02H9/04

CPC classification number: H02H9/046

Abstract: An electrostatic discharge (ESD)-triggered protection apparatus includes a first circuit and a second circuit. The first circuit includes an ESD trigger circuit to sense an ESD pulse and to generate a switching pulse responsive to the ESD pulse; a first ESD discharge device communicatively coupled to the ESD trigger circuit and responsive to the switching pulse to transfer a current generated by the ESD pulse to the ground rail; a control circuit that generates a control signal in response to the switching pulse. The second circuit includes at least one trigger cell buffer that is configured to receive the control signal and to control a second ESD discharge device such that the current generated by the ESD pulse is transferred to the ground rail.

Abstract translation: 静电放电（ESD）保护装置包括第一电路和第二电路。 第一电路包括用于感测ESD脉冲并响应于ESD脉冲产生开关脉冲的ESD触发电路; 第一ESD放电装置，其通信地耦合到所述ESD触发电路并且响应于所述开关脉冲将由所述ESD脉冲产生的电流传送到所述接地导轨; 控制电路，其响应于所述切换脉冲产生控制信号。 第二电路包括至少一个触发单元缓冲器，其被配置为接收控制信号并且控制第二ESD放电装置，使得由ESD脉冲产生的电流被传送到接地导轨。

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。