TOP245F [Power Integrations]

TOPSwitch-GX uses the same proven topology as TOPSwitch, cost effectively integrating the high voltage power MOSFET, PWM control, fault protection and other control circuitry onto a single CMOS chip. Many new functions are integrated to reduce system cost and improve design flexibility, performance and energy efficiency. Depending on package type, either 1 or 3 additional pins allow functions like line sensing, accurate externally set current limit, remote ON/OFF, synchronization, and frequency selection. All package types provide transparent features including soft-start, 132 kHz switching frequency, frequency jittering for lower EMI, wider DC MAX, hysteretic thermal shutdown, and larger creepage packages.