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https://designers-guide.org/forum/YaBB.pl Design >> Mixed-Signal Design >> large driver need ESD https://designers-guide.org/forum/YaBB.pl?num=1460623943 Message started by zelda on Apr 14th, 2016, 1:52am |
Title: large driver need ESD Post by zelda on Apr 14th, 2016, 1:52am Hi If the Tx drivers which have large width, do they still need ESD protection like gated PMOS & gated NMOS? assuming total tx driver size is more than min ESD requirement like min 300um |
Title: Re: large driver need ESD Post by raja.cedt on Apr 15th, 2016, 3:54am You will still need some ESD for +vs Zap, because transistor drain to bulk diode always give only one side protection.. Best Regards, Raj. |
Title: Re: large driver need ESD Post by zelda on Apr 20th, 2016, 2:15am hi Raj, could you explain more in details? why should it need more ESD protection? the driver has met min length and min total width requirement. |
Title: Re: large driver need ESD Post by raja.cedt on Apr 20th, 2016, 8:10am I mean every transistor Drain has it's own diode, so it is self protective up to some extent in one direction, that's why people add big gurad ring so that it is even more effective but this can't add diode in another direction. |
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