RT7302 Datasheet (Primary-Side-Regulation Dimmable LED Driver Controller)

Part: RT7302
Manufacturer: Richtek (official site)
Size: 273.14 KB

RT7302 Key Features

Tight LED Current Regulation
No Opto-Coupler and TL431 Required
Power Factor Correction (PFC)
patible with PWM Dimming
Built-in HV Start-up Device
Quasi-Resonant
Maximum/Minimum Switching Frequency
Input Voltage Feed-Forward pensation
Maximum/Minimum On-Time Limitation
Wide VDD Voltage Range (up to 25V)

RT7302 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...