Author Topic: Blown up but no soot  (Read 908 times)

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Offline cybermausTopic starter

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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? ;D
« Last Edit: December 10, 2022, 06:01:46 pm by cybermaus »
 

Offline JacobPilsen

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Re: Blown up but no soot
« Reply #1 on: December 10, 2022, 07:03:28 pm »
 
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Offline Zero999

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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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Offline DavidAlfa

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« Last Edit: December 10, 2022, 11:57:11 pm by DavidAlfa »
Hantek DSO2x1x            Drive        FAQ          DON'T BUY HANTEK! (Aka HALF-MADE)
Stm32 Soldering FW      Forum      Github      Donate
 
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Offline amyk

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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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Offline cybermausTopic starter

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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
 

Offline cybermausTopic starter

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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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