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UC1825A: 器件上机前抽样检测时无法读取 Vzdc 参数,该参数显示为 0

Part Number: UC1825A

您好!

UC1825A datasheet显示Vzdc参数(Zero dc threshold voltage)在1.1-1.4V之间,在器件上机前按照datasheet给定的测试条件做抽样检测时无法读取 Vzdc 参数,该参数显示为 0;

请帮忙看看出现这种情况的原因是什么呢?谢谢!