LYTSWITCH LYT5218/28D driver question
Hello,
I planned to design dimmable Constant Current LED driver, using PWM via MCU with BLE network. AC input 100..277VAC, Isolated flyback. Outputs: power 20..30W, voltage approximately 20..55VDC, maximum output current 500mA.
I interested in LYT5218/28D drivers.
It's given on LYTSWITCH-5 web page, that the above mentioned drivers are dimmable(analog, pwm or 0..10V), but, unfortunately, i didn't find any ref.designs or application notes, how can i calculate or design project with above mentioned parameters.
My question is following...
Is it possible to create Dimmable Constant Current LED driver using LYT5218/28D?
If Yes, please send any document, how design it.
If No, which other IC-s are reccommended to create design with these requirements.
Beforehand thanks,
Arsen Ghambaryan
评论
I saw this application note an65, but, unfortunately, didn't find, how to design dimming section.
and there are no any reference design with dimming options on LYTSwitch-5. Correct me, if I mistaken.
About Lytswitch-6, Yes, we will try to use these parts, if lytswitch-5 is not be able to correspond our requirements.
In any case, thank you very much Zek!!!
Regards, Arsen
Hi Arsen,
Thank you for your interest in LYTSwitch-5 device.
Please find the application note here: https://www.power.com/sites/default/files/documents/an65.pdf
Other reference design can be found here: https://www.power.com/products/lytswitch/lytswitch-5
If you need a tool for the magnetics, you can use the PI Expert Design: https://piexpertonline.power.com/site/index
If you need more resources on dimmable LED driver, you may consider using LYTSwitch-6 for your design which has more reference design examples using 3-in-1 dimming (which includes PWM dimming).
https://www.power.com/products/lytswitch/lytswitch-6