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Blown up but no soot
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Topic: Blown up but no soot (Read 908 times)
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cybermaus
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Posts: 686
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Blown up but no soot
«
on:
December 10, 2022, 06:00:07 pm »
This chip (switched PSU driver) clearly blew its lid, but no dirt or soot anywhere.
Gives for a pretty neat image I thought.
Anyone can ID the chip based on the die?
«
Last Edit: December 10, 2022, 06:01:46 pm by cybermaus
»
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JacobPilsen
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Re: Blown up but no soot
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Reply #1 on:
December 10, 2022, 07:03:28 pm »
https://remont-aud.net/ic_power/
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Zero999
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0999
Re: Blown up but no soot
«
Reply #2 on:
December 10, 2022, 07:16:10 pm »
What's the make and model number? Perhaps someone might have the same one and can have a look a the IC.
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DavidAlfa
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Re: Blown up but no soot
«
Reply #3 on:
December 10, 2022, 11:50:00 pm »
Not the TNY263-268 series, the pinout doesn't match...
Somethign to start looking:
https://www.mouser.com/c/semiconductors/power-management-ics/ac-dc-converters/?mounting%20style=SMD%2FSMT&package%20%2F%20case=SMD-8~~SMD-8C-7&rp=semiconductors%2Fpower-management-ics%2Fac-dc-converters%7C~Package%20%2F%20Case
«
Last Edit: December 10, 2022, 11:57:11 pm by DavidAlfa
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cybermaus
amyk
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Posts: 8347
Re: Blown up but no soot
«
Reply #4 on:
December 11, 2022, 07:07:09 am »
You can clearly see the main power transistor is what blew in this one, and it takes up most of the die area.
There's some text on the lower left of the die, if you have a more powerful microscope you may be able to see what it says.
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cybermaus
cybermaus
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Re: Blown up but no soot
«
Reply #5 on:
December 11, 2022, 08:18:42 am »
To all helpers, I was somewhat jokingly asking about ID'ing the die.
I posted truly because I thought it was rather neat and clean blowup.
Did not expect people to actually try and ID.
But now I went into the search myself (even though I already ordered a replacement)
Its from a EU style combo boiler/heater unit. Honeywell DBM01
And someone already had the same issue, and not only that,
they claim these boards often fail because the chip is hooked up weirdly
The chip is a
FSD210
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cybermaus
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Re: Blown up but no soot
«
Reply #6 on:
December 14, 2022, 08:53:26 am »
Just to complete the data:
The replacement board came with a
TNY274
instead of FSD210
which accoding to the datasheets is the upgraded version of the
TNY268
that above link advised as replacement
«
Last Edit: December 14, 2022, 08:54:59 am by cybermaus
»
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