Description

TOP250YN Power Integrations IC The TOP250YN IC is a 135W extended power design flexible integrated Off-line Switcher uses the same proven topology as TOPSwitch and it 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 improve design flexibility, performance and energy efficiency. Line feed-forward with maximum duty cycle (DCMAX) reduction rejects line ripple and limits DCMAX at high line. Fetures of TOP250YN Power Integrations IC: Eliminate or reduce cost of external components Fully integrated soft-start for minimum stress/over-shoot Externally programmable accurate current limit Wider duty cycle for more power, smaller input capacitor Line under-voltage detection - No turn OFF glitches Line over-voltage shutdown extends line surge limit Regulates to zero load without dummy loading Hysteretic thermal shutdown for automatic fault recovery Large thermal hysteresis prevents PC board over-heating xtremely low consumption in remote off mode Frequency lowered with load for high standby efficiency Allows shutdown/wake-up via LAN/input port Specifications of TOP250YN Power Integrations IC: Input Voltage AC Min: 85V Input Voltage AC Max: 265V Operating Temperature Min: -40°C Operating Temperature Max: 150°C Frequency - Switching 66kHz ~ 132kHz AC / DC Converter Case Style: TO-220 Fault Protection: Current Limiting, Over Temperature, Over Voltage Control Features: Frequency Control No. of Pins: 6Pins Power Rating: 210W Duty Cycle: 66.8% Topology: Flyback Voltage - Breakdown 700V Topology Flyback