DescriptionTOPSwitch-HX cost effectively incorporates a 700 V power MOSFET, high voltage switched current source, PWM control, oscillator, thermal shutdown circuit, fault protection and other control circuitry onto a monolithic device.

Product HighlightsLower System Cost, Higher Design Flexibility•  Multi-mode operation maximizes effciency 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 flter cost•  Heat sink is connected to SOURCE for low EMI•  Improved auto-restart delivers