Product Highlights DramatICally Simplifi es CV Converters ? Eliminates optocoupler and all secondary CV control circuitry ? Eliminates bias winding supply – IC is self biasing Advanced Performance Features ? Compensates for external component temperature variations ? Very tight IC parameter tolerances using proprietary trimming technology ? Continuous and/or discontinuous mode operation for design fl exibility ? Frequency jittering greatly reduces EMI fi lter cost ? Even tighter output tolerances achievable with external resistor selection/trimming Advanced Protection/Safety Features ? Auto-restart protection reduces delivered power by >95% for output short circuit and all control loop faults (open and shorted components) ? Hysteretic thermal shutdown – automatic recovery reduces power supply returns from the fi eld ? Meets HV creepage requirements between Drain and all other pins, both on the PCB and at the package EcoSmart? – Energy Effi cient ? No-load consumption <200 mW at 230 VAC and down to below 70 mW with optional external bias ? Easily meets all global energy effi ciency regulations with no added components ? ON/OFF control provides constant effi ciency down to very light loads – ideal for mandatory EISA and ENERGY STAR 2.0 regulations ? No primary or secondary current sense resistors – maximizes effi ciency Green Package ? Halogen free and RoHS compliant package Applications ? DVD/STB ? Adapters ? Standby and auxiliary supplies ? Home appliances, white goods and consumer electronics ? Industrial controls Description The LinkSwitch-CV dramatically simplifies low power, constant voltage (CV) converter design through a revolutionary control technique which eliminates the need for both an optocoupler and secondary CV control circuitry while providing very tight output voltage regulation. The combination of proprietary IC trimming and E-Shield? transformer construction techniques enables Clampless? designs with the LinkSwitch-CV LNK623/4.