I received chips different from chips that I ordered. Already asked for refund.
But I am curious what these chips actually do. I searched several SMD code books, but had no luck. Does anybody have any clue what they could be?
I have ordered battery ballancer ICs HY2213-BB3A.
But I do not think the chips I received are just some clones, because I measured no diode drop across pins 2-3 (there should be a diode internally). So I assume those are completely different chips.