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large driver need ESD (Read 1093 times)
zelda
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Posts: 2
large driver need ESD
Apr 14
th
, 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
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raja.cedt
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Germany
Re: large driver need ESD
Reply #1 -
Apr 15
th
, 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.
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zelda
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Re: large driver need ESD
Reply #2 -
Apr 20
th
, 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.
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raja.cedt
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Re: large driver need ESD
Reply #3 -
Apr 20
th
, 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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