NCL30088

NCL30088 Power Factor Corrected Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting with Thermal Foldback The NCL30088 is a power factor corrected flyback controller targeting isolated and non−isolated constant current LED drivers. The controller operates in a quasi−resonant mode to provide optimal efficiency. Thanks to a novel control method, the device is able to tightly regulate a constant LED current from the primary side. This removes the need for secondary side feedback circuitry, biasing and an optocoupler. The device is highly integrated with a minimum number of external components. A robust suite of safety protection is built in to simplify the design. This device is specifically intended for very compact, space efficient designs. Features Quasi−resonant Peak Current−mode Control Operation Constant Current Control with Primary Side Feedback Tight LED Constant Current Regulation of ±2% Typical Power Factor Correction Line Feedforward for Enhanced Regulation Accuracy Low Start−up Current (13 mA typ.) Wide Vcc Range 300 mA / 500 mA Totem Pole Driver with 12 V Gate Clamp Robust Protection Features ♦ OVP on VCC ♦ Programmable Over Voltage / LED Open Circuit Protection ♦ Cycle−by−cycle Peak Current Limit ♦ Winding Short Circuit Protection ♦ Secondary Diode Short Protection ♦ Output Short Circuit Protection ♦ Shorted Current Sense Protection ♦ User Programmable NTC Based Thermal Foldback ♦ Thermal Shutdown ♦ Vcc Undervoltage Lockout ♦ Bro...