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https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1079760/ucd90320u-impedance-of-pins-when-device-off
大家好，团队
客户希望测量连接 到 UCD90320U 设备的2个信号之间的电阻，测试时主板将断电。
断电时 UCD 针脚的阻抗是多少？
是否有 任何具有接地/电源轨路径的保护二极管？
谢谢你，
德拉尼
你(们)好
它们的阻抗将很高，并且在兆欧范围内。是的，有一个 ESD 二极管可以保护。
此致
宜和
