LNK457 OUTPUT VOLTAGE AND CURRENT OSC 27V-700mA

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Hello sir /mam

I DESING 27V 700mA LED DRIVER USING LNK457DG BUT I NOT GET IT CORRCT OUTPUT . THE DRIVER STRAT THE FLECKERING FROM 30VAC INPUT TO 134.5V AC AFTER INCREASING SLOW FLECKER AND NOT TO BE STAND CONTIOUS CURRENT AND VOLTAGE  AFTER FED OF INPUT 230 VAC KINDLY GIVE  TECHNICAL SUPPORT ME ASP.

1. PI IC LNK457 DG

2. Transoformer EE25/17/13

3.9 LED 3.3 V 700mA-900mA

첨부 파일Size
9W.pdf14.55 KB
TS.pdf24.73 KB

The maximum power of LNK457 is 8 W as shown in the LNKPL datasheet.

 

For the universal input, isolated, triac dimming, 19 W LED driver application, LNK406, needs to be used as shown in RDR-195.