onsemi FL7733MX

FL7733 Series 30 V 70 KHz SMT Primary Side Regulated LED Driver - SOIC-8

Tape & Reel (TR) Flyback SEPIC Step-Down (Buck) Step-Up (Boost) Surface Mount LAST SHIPMENTS (Last Updated: 1week ago) led driver 4.9mm 5mA 308V 633mW

This highly integrated PWM controller with advanced Primary-Side Regulation (PSR) technique provides features to enhance the performance of low-to-mid-power LED lighting converter. The FL7733 LED driver is designed with minimum system components while LED current is accurately controlled by Fairchild’s TRUECURRENT® technique and improved feedback loop control. Constant Current (CC) tolerance less than 1% over the universal line voltage range meets the requirement of highly reliable LED brightness management.By minimizing turn-on time fluctuation, high power factor, and low THD; <10% THD over the universal line range can be obtained. An integrated high-voltage startup circuit implements fast startup and high system efficiency. During startup, adaptive feedback loop control anticipates the steady-state condition and sets initial feedback condition close to the steady state to ensure no overshoot or undershoot of LED current.The FL7733 provides powerful protections, such as LED short / open, output diode short, sensing resistor short / open, and over-temperature for high system reliability. The FL7733 controller is available in an 8-pin Small-Outline Package (SOP).