Help needed - Flyback controller IC identification

[ruthenianboy]

Hello all,

A friend of mine asked if I could repair his wall LED lamp. The power supply/controller PCB title says it is "60W adjust the color power supply". It is dual color (cold/warm) remotely adjustable lamp. The measurement revealed MOSFET transistor is shorted and due to that current feedback resistors exploded and part of the PCB traces evaporated. I am trying to find the datasheet of the flyback controller IC in SOT-23-6 package with the marking "32139a 052A" (or "32I39a"). There is no optocoupler for feedback in this circuit if it means something. So datasheet will be helpful for the identification of the correct value of exploded feedback resistors (in the photo they are removed from PCB) and overall circuit topology.

Thank you all.

[dobsonr741]

This page will help to identify unknown flyback controllers: https://remont-aud.net/ic_power/

Identify the Vcc, GND, feedback, driver etc. pins from the pcb, plug the PIN numbers into the webpage and it will give you matches.