What happens when one input is left open on an Si84xx digital isolator?Is it like an ordinary CMOS device that can cause high current consumption if an input is left open?
- 创建于2020-04-27
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- To Answer your question, the Si84xx digital isolators have an internal 2uA current source pull down on each input.If an input pin is left floating, it is pulled low to the voltage potential at its ground terminal. This 2uA pull-down current is sufficient to protect against any external parasitic capacitive noise coupling in electrically noisey environments as well.
- Published：2020-04-27
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