LitepanelsMicro LED On-Camera Light

[kinggeorge3287]

I am new to the site. I am an amateur to fixing the circuit board. Now I have a LitepanelsMicro LED On-Camera Light, accidentally I connected the wrong power adapter and fried something. now the light turns on for a millisecond and turns off. looking at the board I fried a chip, I can only read half of what it says. It start With "LTQY 8144 " the 8 maybe 2 . can someone tell me what this may be ( fuse, step-down ect) please help

Thank you
Prince George

 

[kellys_eye]

Show a picture of the device.

 

[kinggeorge3287]

Hi,
Thank you for the reply. I am attaching a picture of the board with fired component noted. Will anyone will be able to identify this.
please help
thank you
Pgeorge

 

[kellys_eye]

The LTQY notification 'decodes' (in an SMD online reference) to the LT1961EMS8E 1.5A step up switching regulator which, with the adjacent inductor/diode may be the answer.

http://pdf1.alldatasheet.com/datasheet-pdf/view/260320/LINER/LT1961EMS8E.html

That said, the device can withstand a 25V input so how you sporgged it is anyone's guess - reverse polarity perhaps?

Digikey and others should stock it - use the LT1961 code to search for it but ensure you get the MSOP package size when ordering.

 

[kinggeorge3287]

Hi,
Thank you very much. I will update how the repair goes.