发明授权
US09294081B2 System and method for breakdown protection for switching output driver
有权
开关输出驱动器的故障保护系统和方法
- 专利标题: System and method for breakdown protection for switching output driver
- 专利标题(中): 开关输出驱动器的故障保护系统和方法
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申请号: US14229270申请日: 2014-03-28
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公开(公告)号: US09294081B2公开(公告)日: 2016-03-22
- 发明人: Chang Joon Park , Charles E. Seaberg
- 申请人: Chang Joon Park , Charles E. Seaberg
- 申请人地址: US TX Austin
- 专利权人: FREESCALE SEMICONDUCTOR, INC.
- 当前专利权人: FREESCALE SEMICONDUCTOR, INC.
- 当前专利权人地址: US TX Austin
- 主分类号: H03K3/00
- IPC分类号: H03K3/00 ; H03K17/08 ; H03K17/687
摘要:
An integrated circuit device includes a driver circuit (100) having a pull-up network with a first pull-up transistor (108) coupled to a second pull-up transistor (110) at a first node (VP), and a pull-down network coupled to the pull-up network including a first pull-down transistor (112) coupled to a second pull-down transistor (114) at a second node (VN). A first bias switch (116) is coupled to the first node. A second bias switch (118) is coupled to the second node. A control circuit (104) is coupled to operate the first and second bias switches. The first bias switch is operated to reduce a voltage at the first node during a pull-down cycle of the driver circuit and the second bias switch is operated to reduce a voltage at the second node during a pull-up cycle of the driver circuit.
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