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RT7302
Primary-Side-Regulation Dimmable LED Driver Controller with Active PFC
General Description
The RT7302 is a constant current LED driver with active power factor correction.
It supports high power factor across a wide range of line voltages, and it drives the converter in the Quasi-Resonant (QR) mode to achieve higher efficiency.
By using Primary Side Regulation (PSR), the RT7302 controls the output current accurately without a shunt
regulator and an opto-coupler at the secondary side, reducing the external component count, the cost, and the volume of the driver board.
The RT7302 is designed to be compatible with PWM Dimming.
The output current can be modulated by the duty ratio of ...