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https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/903057/ucd90320-how-should-the-vref-pins-be-terminated-if-not-using-the-external-reference
是否应将引脚保留为"无连接"或以某种方式进行端接？
你(们)好
如果未使用外部基准、它们可以保持悬空。
此致
Yihe
