TOP258YN

AC-DC Power Conversion - TOPSwitch-HX Off-Line Switcher IC 148W

* Multi-mode operation maximizes efficiency 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 heat sink 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 filter cost