Low leakage electronic switch
Low leakage electronic switch
(OP)
I am looking for an electronic switch which can switch on 10A from a 40V source with an off leakage of less than 200nA at temperatures below 50C. Most MOSFET data sheets list the IDSS at 1uA, although I suspect they actually conduct much less current in that situation. The configuration I have in mind would call for a P-channel MOSFET, but I am open to other solutions as well. Can anyone make a recommendation for this application? Of course space is at a premium as well. My luck getting feedback from semiconductor vendors has been poor, so if any helpful souls on this forum can provide inputs I would greatly appreciate it.





RE: Low leakage electronic switch
RE: Low leakage electronic switch
RE: Low leakage electronic switch
What I've seen done is to use the transistor as the high speed switching device, but in the Off / Safe state (the typical reason for low leakage requirements), use a relay in series with it.
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RE: Low leakage electronic switch
RE: Low leakage electronic switch
http://www.songle.com/en/pdf/20084141716341001.pdf
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FAQ731-376: Eng-Tips.com Forum Policies
RE: Low leakage electronic switch
http://www.songle.com/en/pdf/20084141716341001.pdf"
This is in the ballpark. I will definitely check it out, many thanks!!
RE: Low leakage electronic switch
The data sheets always say 1uA or 25uA or whatever but realistically the typical part is much less and temperature is a major factor. I would say it depends on your application.
RE: Low leakage electronic switch
Semiconductors are still my favorite due to the much smaller form factor than a relay.