lnk409eg based 35v1A driver output less current

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Dear sir


we are desing lnk409eg based led deriver with dimming , the driver output is 24-26 v and output current is 200mA only can you tel that what i mistake 


that circuit working 90-265 volis input working no problem.

dimmer circuit working no issue but current is less

첨부 파일Size
35v1A.doc339.5 KB
EI30.doc53.5 KB

First ensure that you use the correct LED load that has an operating voltage of around 35V.

Disable the OVP circuit just to make sure it does not affect the FB signal.

Double-check the design spreadsheet and make sure the critical values like RV resistors and FB resistors are correct.

Monitor the bias voltage and adjust the FB resistor if necessary.