TOP255GN

TOP252-262 TOPSwitch-HX Family Enhanced EcoSmart, Integrated Off-Line Switcher with Advanced Feature Set and Extended Power Range Product Highlights Lower System Cost, Higher Design Flexibility 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 + AC DC IN OUT - D TOPSwitch-HX V CONTROL C S XF Figure 1. Typical Flyback Application. PI-4510-100206 Heat sink is connected to SOURCE for low EMI Improved auto-restart d...