Hi,
Thank you for going through my many questions.
i have looked some datasheets but couldn't find information about the capacitance
I would be surprised...
please give a link to the datsheets you used.
as a guess for the capcitance of the MOSFET
Which MOSFET?
i'm not sure what you mean by the threshold supply voltage
If I understand correctly, then you want to monitor the supply voltage ... with the use of a resistive divider ... then to a comparator with 0.7V reference.
If so, then there is a certain level of the supply voltage where the comparator switches....this is called the threshod voltage.
I forgot to mention that the clock is 50MHz, so the fewer the clock cycles the better it is, other than that there are no strict requirments.
Why do you need a clock?
There are no strict requirements for that
If so, then "half an hour" should be OK?
If not --> then you have requirement.
In post#1 you wrote "too slow" ... then obviously you have some timing limit in mind.
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Please tell me. How do I have to understand this: You try to build a "RESET generator IC" but you have no microcontroller in mind.
Nobody would buy shoes ... and afterwards looking for a grilfriend with the right shoe size.
Usually there is a demand for something .... and because there are hundreds of RESET generators ready to buy .. I assume you look for a solution that the others can´t fulfill.
Or is it some kind of school project?
If so, then I recommend to go some datasheets of existing reset generator ICs ... go through the specifications step by step and ask yoruself where your limits/requirements are.
Do a search for "reset and supervisor ICs"
Klaus