can UCC28881 support 48V/225mA ouptut

Max Han

Intellectual 2260 points

Other Parts Discussed in Thread: UCC28881

input voltage is 85VAC to 265VAC, output 48V/225mA

can UCC28881 support this condition?

is there any problem?

over 9 years ago

0 John Stevens over 9 years ago

TI__Expert 7395 points

Max,
As a buck -yes. It would be operating near its max duty cycle at 85vac so need to make sure will not have input lower than that. As a flyback-no, that's too much current on the integrated switch.
Regards
John

Power management

Power management forum

can UCC28881 support 48V/225mA ouptut