TOP249Y [Power Integrations]

TOPSwitch-GX uses the same proven topology as TOPSwitch, integrating a high-voltage power MOSFET, PWM control, fault protection, and control circuitry onto a single chip. It features extended power range, no heatsink required up to 34W with P/G packages, fully integrated soft-start, externally programmable current limit, wider duty cycle, line under-voltage/overvoltage detection, line feed-forward with DC reduction, frequency jittering for reduced EMI, regulates to zero load, 132 kHz switching frequency (66 kHz option), hysteretic thermal shutdown, and EcoSmart energy efficiency with low standby power consumption.