lnk457 - problem

2 posts / 0 new

Hi,

1 - I did the layout in software pi expert designed a driver with input 85-265V output 11V  / 0.9A (10W). The project included CI lnk457,  but in the datasheet that supports up to 8W. The circuit turns off when the current is about 0.9 A (11,5V / 10W). But up to 0.75 A continues working. This is because the lnk457 supports up to 8W?

2 - I needed to sample a transformer and lnk460 (or lnk458) can I pay only one shipping?

Thanks!
Valquíria

Hi,

You are correct, you need to increase the size of your device.

For sampling you can contact the sales in your region:

http://www.powerint.com/en/company/sales-information/worldwide-sales-support-locations

If you are in hurry you can buy it from Digikey:

http://www.digikey.com/product-detail/en/LNK460VG/596-1343-5-ND/2507352

For transformer sample support you can contact  magnetic companies such as REnco, Bourns,CTParts,  TDK , Pulse etc.

http://www.rencousa.com/

http://www.ctparts.com/

 http://www.bourns.com/

Regards,

PI-Jono