Hi,

The LNK series parts do not have a line sense function unlike our TinySwitch or TOPSwitch product families.

The parts however do have a lockout for the BP(Bypass) pin voltage which is the supply rail of the internal circuitry.

If you could let us know the specific LNK series part number that you are interested in using, we could explain this further for that specific part and where you may find the relevant information in the datasheet.

Thank you,

Regards

PI-Sarek

I'm using LNK3604G.
Could you suggest me an external circuit to make the Undervoltage Lockout function?
Ater every power off the device enter in auto-restart for a log time.

Thank you.
BR

Francesco Sonzogni
Ever Elettronica

Hi Francesco,

Thank you for reaching out to us through this page. We are more than willing to help you out but if may I request, please kindly create a "new" ticket for this specific inquiry. If you feel like that this is somehow related to this post, you may include the link in your "new" post for our reference.

Looking forward on you new ticket.

Thank you and Best Regards,

PI-Lupin the Third