120VAC Input: PSR 5V 25W Flyback Reference Design

1 января 2018

This reference design is a 120Vac to 5V primary side regulated flyback converter with synchronous rectification on the secondary side. The reference design has extremely low standby power at 67mW. UCC28704 features integrated CC-CV regulation without the use of an optocoupler. PMP20771 utilizes synchronous rectification which improves system efficiency across the designed load range.

Особенности

Over 88% efficiency at full load Low standby power, 67mW with no load 1oz, 2-layer board measuring 7mm x 38mm size Primary side regulation eliminates the need for an optocoupler