120Watts PWR Supply

Posted by: boud25 on 04/29/2010

Hi,
I want to design a power supply, with approximativelly 48 or 60V output (not nessary exact) , could I use TOP249 with an input 85-265VAC ? or I should use a PFC ?

Comments

The TOPSwitch-JX (TOP264~TOP271) is recommended for new designs.

http://www.powerint.com/products/topswitch-family/topswitch-jx

The TOP270 and TOP271 can do 120W in an open frame thermal environment.

The decision to use PFC is usually driven by the spec requirements (i.e. is PF > 0.9 required?)