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ATL431: Calculation tool

Part Number: ATL431
Other Parts Discussed in Thread: TL431,

Hi Team,

We would like to use TL431 calc tool.
We have several questions about how to use this tool.

1) Is it no problem to apply TL431 calc tool for ATL431?
2) Is my thought below correct because I think IDiv is Divider current?

3) We cannot input value under 100 to IDiv/IRef. What is any problem when IDiv/IRef is under 100?
4) Does this tool use IRef = 4uA(max), the data sheet spec?

Best Regards,