Electronics > Microcontrollers

Raspberry Pi4 chip blown need ID

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horga83:
Hi All,

I have a RPI4 and the 6 pin chip just behind the USB2 connector is fried.  I have tried to search for the ID which is BJ9uD but alas nothing found.
Can anyone help me out here.

Thanks in advance.
George

amyk:
Pictures please?

Could be SY8101B.

https://rik174.ru/files/products/izobrazhenie-001_321.1200x800w.jpg?4658e52af253445ca68ee69721bbb804

horga83:
Yes here is a picture.  I can't get the camera close enough to take a pic but through the microscope it is certainly a BJ9uD
Thanks for your reply I tried to look up the BJ9YK in your link but no luck.
The SY810B could be a candidate.

amyk:
BJxxx is SY8101B.

As an aside... what is this half-baked piece of crap they call a "schematic"? :wtf:
https://datasheets.raspberrypi.org/rpi4/raspberry-pi-4-reduced-schematics.pdf
I'm surprised no one has RE'd the whole thing yet, given how many have been made. Shows what the "maker community" is actually capable of... :palm:

horga83:
Thank you very much, now if I can find a place that would sell me a couple, any suggestions?
My normal sources, digikey, mouser, amazon, ebay etc all fail to have them.

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