公开(公告)号：US20120112816A1

公开(公告)日：2012-05-10

申请号：US13287828

申请日：2011-11-02

申请人： Jo-Yu WANG ,  Isaac Y. Chen

发明人： Jo-Yu WANG ,  Isaac Y. Chen

IPC分类号： H03K17/687

CPC分类号： H03K19/1732 ,  G06F1/22 ,  G06F1/28 ,  H03K17/22

摘要： A first switch is switched to short a multi-functional pin of an integrated circuit to a ground terminal or let a current supplied to the multi-functional pin to flow to a second switch connected to the multi-functional pin. Before the integrated circuit is ready, the second switch is closed circuit and is detected its current to determine a first signal to enable or disable the integrated circuit. After the integrated circuit is ready, the second switch is open circuit, the voltage at the multi-functional pin is detected to determine a second signal to enable or disable the integrated circuit, and when the voltage at the multi-functional pin is higher than a threshold, a power good signal is triggered.

摘要翻译： 第一开关被切换成将集成电路的多功能引脚短接到接地端子，或者使提供给多功能引脚的电流流到连接到多功能引脚的第二开关。 在集成电路准备就绪之前，第二开关是闭合电路，并且检测其电流以确定第一信号以使能或禁用集成电路。 集成电路准备就绪后，第二开关断开，检测多功能引脚上的电压，确定第二个信号使能或禁止集成电路，并且当多功能引脚的电压高于 阈值，电源良好信号被触发。