Description

The main purpose of this reference design is to demonstrate a high performance offline phase dimmable Buck-Boost PFC LED driver based on LM3447. This LED driver is designed for converting an AC input to a regulated LED current. The operating conditions and performance of the reference design are as follows: ●198VAC to 264VAC: 50Hz Input Voltage ●34V LED Voltage ●300mA LED Current ●85% Typical System Efficiency ●> 0.9 Power Factor ●Output Short-Circuit and Open-Circuit Protection