LT3799 Isolated LED Controller

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            LT3799 Isolated LED Controller
                    Analog Devices introduces the LT3799 isolated LED controller
    

Image of Analog Devices' LT3799 Isolated LED Controller Analog Devices' LT3799 isolated LED controller with active power factor correction (PFC) is designed for driving LEDs. It is ideal for LED applications requiring 4 W to over 100 W of LED power and is compatible with standard TRIAC in-wall dimmers. The LT3799's unique current sensing scheme delivers a well regulated current to the secondary side without using an optocoupler, enabling it to provide well regulated (±5%) LED current. It also offers low harmonic distortion while delivering efficiencies as high as 85%. Open and short LED protections ensure long term reliability and a simple, compact solution footprint enables a wide range of applications.

Features

Small solution size with a minimum of external components
Isolated regulated current source for driving LEDs
Compatible with standard TRIAC in-wall dimmers
Regulates LED current (typically ±5%)

Active power factor correction > 0.97
Multiple CTRL inputs allow flexibility
Single-stage active PFC flyback topology without an optocoupler
Ideal for 4 W to 100+ W of LED power
Open- and shorted-LED protection
Low harmonic distortion