Hi, i nedd to find the IC in the picture attached. Come from a Notebook powersupply (Lite on power supply). The PS is a classical Flyback converter. This IC i think is the controller.
What is written in the second line?
What is connected to which pin of the IC? Any other controller related devices on the board?
I think you need to get some more information, in order to find out what that thing is and what it is supposed to do.
Last edited by tomelec; 10-22-2014, 04:54 AM.
Reason: My bad grammar ^^
The 2nd line is something like "NAE" and last line is "SYB".
I will check the connection later. This is the only IC in the board.
Like any other classic flyback there are an n-ch mosfet (tested and ok), output diode (tested ok), diode bridge (tested and ok), bulk capacitor (after the bridge) and an optocoupler (tested and ok).
With good probability the ic is a TEA1733 from NXP. In the App note AN10868 the output diode and n-ch mosfet have the same part number of the my power supply.
Unfortunately i can't find any reference on how this IC is marked on top side
Checking the connection and searching on internet i found that the ic is probably an On-Bright electronics product. At the moment i know only that pin1 is GND
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