| 发明名称 | Comparative ESD power clamp | ||
| 摘要 | Approaches for a comparative ESD protection scheme are provided. An electrostatic discharge (ESD) clamping circuit includes: a discharge field effect transistor (FET) connected between a power supply node and ground; and a comparator that receives a divided power supply voltage at a first input and a reference voltage at a second input. The comparator outputs a first value that turns the discharge FET on when the divided power supply voltage is greater than the reference voltage. The comparator outputs a second value that turns the discharge FET off when the divided power supply voltage is less than or equal to the reference voltage. | ||
| 申请公布号 | US9640988(B2) | 申请公布日期 | 2017.05.02 |
| 申请号 | US201414569005 | 申请日期 | 2014.12.12 |
| 申请人 | GLOBALFOUNDRIES INC. | 发明人 | Ellis-Monaghan John J.;Loiseau Alain |
| 分类号 | H02H9/00;H02H9/04 | 主分类号 | H02H9/00 |
| 代理机构 | Roberts Mlotkowski Safran Cole & Calderon, P.C. | 代理人 | Canale Anthony;Calderon Andrew M.;Roberts Mlotkowski Safran Cole & Calderon, P.C. |
| 主权项 | 1. An electrostatic discharge (ESD) clamping circuit, comprising: a discharge field effect transistor (FET) connected between a power supply node and ground; and a comparator that receives a divided power supply voltage at a first input and a reference voltage at a second input, wherein: the comparator outputs a first value that turns the discharge FET on when the divided power supply voltage is greater than the reference voltage, andthe comparator outputs a second value that turns the discharge FET off when the divided power supply voltage is less than or equal to the reference voltage. | ||
| 地址 | Grand Cayman KY | ||