TOP255EN Datasheet PDF - Power Integrations

●The TOP255EN is an enhanced EcoSmart™, Integrated Off-line Switcher with 25W peak, advanced feature set and extended power range. TOPSwitch-HX cost effectively incorporates a 700V power MOSFET, high voltage switched current source, PWM control, oscillator, thermal shutdown circuit, fault protection and other control circuitry onto a monolithic device.

● Multi-mode operation maximizes efficiency at all loads

● 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

● Line under-voltage (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

● Half frequency option for video applications

● Frequency jittering reduces EMI filter cost

● Heat sink is connected to SOURCE for low EMI

● Fully integrated soft-start for minimum start-up stress

● Energy efficient over entire load range

● Less than 200mW at 230VAC, no load consumption

● Standby power for 1W input