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cannot identify this optocoupler
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Topic: cannot identify this optocoupler (Read 4239 times)
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Eliminateur
Regular Contributor
Posts: 179
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Electronic's Technician
cannot identify this optocoupler
«
on:
February 21, 2011, 07:16:35 pm »
i've been searching for quite some time for the datasheet for an optocoupler i have here, the markings are:
L 0625
817A
Y
i've searched 0625, L0625, 817, 817A, 817Y, nothing...
any ideas?
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Simon
Global Moderator
Posts: 18017
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Did that just blow up? No? might work after all !!
Re: cannot identify this optocoupler
«
Reply #1 on:
February 21, 2011, 07:21:30 pm »
do you know the origin the the dvice it is in.
For example i have a medical device mad in Russia many years ago, It had some weird named DIP14 chips in it that turned out to be the russian version of the 7400
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Zero999
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Posts: 19895
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Re: cannot identify this optocoupler
«
Reply #2 on:
February 21, 2011, 07:29:22 pm »
Yes the Russians copied many ICs from the US, including those used in some electronic games which amusingly exhibited the same bugs.
Do you have a picture of the PCB or a schematic?
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Bored@Work
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Re: cannot identify this optocoupler
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Reply #3 on:
February 21, 2011, 08:00:51 pm »
http://www.us.liteon.com/downloads/LTV-817-827-847.PDF
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Eliminateur
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Posts: 179
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Re: cannot identify this optocoupler
«
Reply #4 on:
February 21, 2011, 08:19:06 pm »
Bored takes the jackpot!, i found a similar device datasheet but wasn't convinced, so yeah... run-of-the-mill optocoupler...
i wish i had an schematic!, it's from a Dell AC brick(which incidentally i have opened in another thread) that's misbehaving and i have no idea why
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Zero999
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Posts: 19895
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Re: cannot identify this optocoupler
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Reply #5 on:
February 21, 2011, 09:15:57 pm »
It's there to provide an isolated feedback path from the secondary to primary side and is unlikely to have failed so check out the other components before replacing it.
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