how to find mark on a chip

Dsun.21 · ‎2023-05-09

I have this chip on a board LD2985BM50R. how can I verify the mark on top of the chip is marching the chip? it is really funny that the mark wasn't mentioned in the data sheet.

Thank you,

David

Peter BENSCH · ‎2023-05-09

The LD2985BM50R has the marking B550, which is also on the label of the bag/box with which the board was equipped.

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Good luck!

/Peter

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View solution in original post

Peter BENSCH · ‎2023-05-09

The LD2985BM50R has the marking B550, which is also on the label of the bag/box with which the board was equipped.

If the problem is solved, please mark this thread as answered by selecting Select as best, as also explained here. This will help other users find that answer faster.

Good luck!

/Peter

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

Dsun.21 · ‎2023-05-10

if you could provide a generic way to find the Mark from data sheet or website, that will be even better.

Piranha · ‎2023-05-13

It is a long standing annoyance that ST doesn't provide the SMD markings in datasheet! That data is not some commercial secret, but is effectively a shortened part number. Why it is not written in datasheet as other manufacturers do?