Electronic Design
PFC/PWM Controller Enhances Dual-Switch Flyback Topologies

PFC/PWM Controller Enhances Dual-Switch Flyback Topologies

Targeting power adapters, LCD TV, and LED lighting designs, the FAN6920MR critical-mode PFC and quasi-resonant current mode PWM controller meets regulatory requirements by providing greater than 90% efficiency and less than 300 mW of output at no load. The device integrates a PFC controller and a quasi-resonant PWM controller plus numerous protection functions including brownout, secondary-side open-loop and over-current with auto recovery, external auto-recovery protection triggering, and internal over-temperature shutdown. Available in a 16-pin SOP, price is $0.82 each/1,000. FAIRCHILD SEMICONDUCTOR, San Jose, CA. (800) 341-0392.

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