GENERAL DESCRIPTION

OB5656 is a high power factor (PF>0.9) linear driver with high voltage start-up and advanced features to provide high precision current output for TRIAC dimmable LED lighting applications. It offers intelligent bleeder control for high efficiency and high PF.

OB5656 offers programmable thermal foldback function feature to make the system flicker-free when the ambient temperature is high.

OB5656 is offered in ESOP8 package.

FEATURES

n Excellent TRIAC dimming performance

n 120Vac input only

n High Power Factor (PF >0.9)

n HV startup

n Intelligent bleeder control for high efficiency and high PF

n High precision constant current regulation

n No inductance , EMI issue

n Low system cost

n Programmable thermal foldback function

APPLICATIONS

n LED lighting

n 120Vac LED lamp

TYPICALICAL APPLICATION