TOPSwitch-HX 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.
Frequency Jitter Reduces EMI EcoSmart® Low Standby/No-load Power Consumption Latching Output Overvoltage Protection Line Undervoltage (UV) Lockout
The TOPSwitch-HX is a highly integrated monolithic off-line switcher IC designed for off-line power supplies. TOPSwitch-HX integrated circuits enable design of power supplies up to 195 W, while providing high efficiency under all load conditions. TOPSwitch-HX also provides very good performance at low load and during standby (no load) operation.
Multi-mode operation maximizes efficiency at all loads No heatsink required up to 35 W (up to 48 W at 230 VAC) using P, G or M packages Output overvoltage protection (OVP) 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 Fully integrated soft-start for minimum start-up stress Energy efficient over entire load range No-load consumption
