UCL5811 Datasheet | Unisonic Technologies

UNISONIC TECHNOLOGIES CO., LTD Preliminary PSR & PFC LED DRIVER CONTROLLER CMOS IC - DESCRIPTION The UTC UCL5811 is a single-power stage, isolated and primary side offline LED lighting regulator which achieves high power factor. The proprietary real-current control method can control the LED current accurately from the primary side information. It can significantly simplify the LED lighting system design by eliminating the feedback ponents and the opto-coupler. The UTC UCL5811 integrates active power factor correction and works in Quasi Resonance mode (QRM) in order to reduce the MOSFET switching losses. With a building in 700V start-up MOSFET, IC can eliminate the power...