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Help with led driver chip identification

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Miyuki:
Hi folks,

I have here some nice LED panel power supply and I want to hack in. But I cannot found anything about this control chip.
It look like something fairly new and using modern topology.
It have no input capacitor just PFC choke and single discrete transistor to switch
And it is all digitally controlled by MSP430 trough I2S bus (with CC2500 wireless chip)
Regulation is done from primary side to constant current output

Chip marks:
iW
6401
1742
6RAA

JackJones:
This does come up with search: https://www.dialog-semiconductor.com/products/lighting/solid-state-lighting/iw6401

Miyuki:

--- Quote from: JackJones on March 27, 2019, 06:29:39 pm ---This does come up with search: https://www.dialog-semiconductor.com/products/lighting/solid-state-lighting/iw6401

--- End quote ---
Thanks a lot
This look exactly like what I have here

JackJones:
I think I found the datasheet but can't get the link opened: http://www.yuhaoic.com/Uploads/file/20151010/20151010082442_31014.pdf

There is a cached version but it doesn't look very readable: https://webcache.googleusercontent.com/search?q=cache:jUyR5cbdt3MJ:https://www.dialog-semiconductor.com/sites/default/files/dialogiw6401smartexitemar2016english.pdf+&cd=2&hl=en&ct=clnk&gl=fi

Edit: There we go: https://datasheetspdf.com/pdf-file/1264601/DialogSemiconductor/iW6401/1

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