formatting link
see note 3 at bottom of page 2, referring to the +/-20V VGS abs max first page.
Why that note? What's the hidden catch, should one be there?
Thanks,
Fred.
Strange MOS datasheet footnote...
Nov 21, 2011
5 Replies
Probably avoiding defining lousy reverse-bias safe-operating-area ;-)
I've seen restraint like that in IC devices... even had to write a macro to ensure I checked for it during simulations. ...Jim Thompson
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
I wasn't able to find any real information on the "Power Trench" process, but -- as a wild-ass-guess -- maybe continuous negative gate bias could cause some kind of ion migration into the oxide/channel?
And a resulting shift in the threshold voltage?
Possibly concerned about resulting cumulative Vgd, which is not specified. That might have been a more direct solution.
Using a 32V process.....
RL
I'm not sure I buy any of the answers here. Why not call Fairchild and ask for an explanation?
Join the Discussion
Have something to add? Share your thoughts — no account required.
Didn't find your answer?
Ask the community — no account required