TOP254EN Enhanced EcoSmart, Integrated Off-Line Switcher tv circuit board components
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TOP254ENEnhanced EcoSmart, Integrated Off-Line Switcher tv circuit board componentsSTOCK LIST
Lower System Cost, Higher Design Flexibility ►Multi-mode operation maximizes effi ciency at all loads ►New eSIP-7F and eSIP-7C packages ► Low thermal impedance junction-to-case (2 °C per watt) ►Low height is ideal for adapters where space is limited ►Simple mounting using a clip to aid low cost manufacturing ►Horizontal eSIP-7F package ideal for ultra low height adapter and monitor applications ►Extended package creepage distance from DRAIN pin to adjacent pin and to heat sink ►No heatsink required up to 35 W using P, G and M packages with universal input voltage and up to 48 W at 230 VAC ►Output overvoltage protection (OVP) is user programmable for latching/non-latching shutdown with fast AC reset ►Allows both primary and secondary sensing ►Line undervoltage (UV) detection prevents turn-off glitches ►Line overvoltage (OV) shutdown extends line surge limit ►Accurate programmable current limit ►Optimized line feed-forward for line ripple rejection ►132 kHz frequency (254Y-258Y and all E/L packages) reduces transformer and power supply size ► Half frequency option for video applications ►Frequency jittering reduces EMI fi lter cost
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