Post #2467868
2026-05-10 18:18 UTC
Anyone able to identify this IC from a small 12V AC light? The B924A1 code isn't turning anything up for me. I'm assuming it's some kind of constant current driver.
Hoping to modify it to run on a lower DC voltage.
Replies (3)
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@xssfox@cloudisland.nz 2026-05-10 22:49
@fsphil@mastodon.social that leg waving at us is so cute
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@toroidalcore@masto.hackers.town 2026-05-10 23:02
@fsphil@mastodon.social Do you have a picture of the whole circuit board? Might be able to figure out what it is in context.
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@cypnk@masto.hackers.town 2026-05-10 23:38
@fsphil@mastodon.social B924A1 is a constant current driver IC. You'll see it being used to drive LEDs, probably as in this case, but also some measurement devices where exact reference isn't critical PT4115 is a very similar device, and you can probably use it interchangeably (it's also more available outside of China/Taiwan) https://www.digikey.com/en/products/detail/evvo/PT4115/22482069