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    • 30. 发明授权
    • Under voltage tolerant clamp
    • 低电压钳位
    • US09391063B2
    • 2016-07-12
    • US13114738
    • 2011-05-24
    • Nickole GagneGregory A. MaherChristian Klein
    • Nickole GagneGregory A. MaherChristian Klein
    • H02J7/00H01L27/02H01L27/06
    • H01L27/0266H01L27/0629
    • An apparatus comprises an integrated circuit (IC) comprising an external IC connection, an IC substrate connection, a voltage clamp circuit and an under voltage circuit. The voltage of the IC substrate connection is set to a first voltage when a voltage of the external connection of the IC is within a normal operating voltage range. The voltage clamp circuit is configured to clamp the voltage supply of one or more circuits internal to the IC to within a normal operating voltage range when the voltage of the external IC connection exceeds the normal operating voltage range. The under voltage circuit is communicatively coupled to the clamp circuit and configured to set the voltage of the substrate to a second voltage when the voltage at the external IC connection of the IC is less than zero volts.
    • 一种装置包括集成电路(IC),其包括外部IC连接,IC基板连接,电压钳位电路和欠压电路。 当IC的外部连接电压处于正常工作电压范围内时,IC基板连接的电压被设定为第一电压。 电压钳位电路被配置为当外部IC连接的电压超过正常工作电压范围时,将IC内部的一个或多个电路的电压钳位在正常工作电压范围内。 欠压电路通信地耦合到钳位电路并且被配置为当IC的外部IC连接处的电压小于零伏特时将衬底的电压设置为第二电压。