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LED control chip?

Discussion in 'Datasheets, Manuals and Component Identification' started by flippineck, Sep 21, 2014.

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  1. flippineck

    flippineck

    268
    8
    Sep 8, 2013
    Image attached, it's the 8-legged chip I'm trying to identify.

    The board is a power supply taken out of the base of an E27 screw-in domestic lightbulb.

    The closest I can get to ID'ing it by sight is:

    1st line
    Character 1: "C" or "E"
    Character 2: "P" of "F"
    Characters 3 thru 6: Definitely "1213"

    2nd line
    CD08614.. I think

    3rd line:
    Tn or Tx followed by;
    9;D;B;8?
    followed by
    3221

    Following the circuit best I can; the live feed from the AC mains bulb socket seems to feed in directly across a bridge rectifier parallel with a voltage dependant resistor. The output from the bridge then seems to go off into some kind of inductor / capacitor (filter?) arrangement with a dose of diodes, before being sent out to the "JXL1027" LED board which has 4 discrete high power LEDs on it.

    There is a relatively big 47uF electrolytic, a 100uH choke, a tiny iron-core 2-terminal choke, and several small R's & C's.

    Two diodes - one labelled S160 & one labelled SMAJ51A. Not sure how connected.

    Grateful for any info on the circuit but especially the 8 leg chip.

    If needed I coukld supply pics of t'other side of the board when the missus brings her camera back
     

    Attached Files:

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