TOP258PN Offline Switcher Power Supply IC PDIP-8C

TOP258PN Offline Switcher Power Supply IC PDIP-8C The TOP258PN is a highly integrated off-line switcher IC designed for use in isolated AC-DC power supplies employing a flyback topology. It integrates a high-voltage 700 V MOSFET, control logic, PWM oscillator, and comprehensive protection circuitry onto a single monolithic die, substantially reducing external component count and simplifying power supply design. The device belongs to Power Integrations’ TOPSwitch-HX family, which is optimized for high-efficiency performance over a wide load range as well as compliance with modern energy-efficiency standards in standby and no-load conditions. Features: Multi-mode operation for optimal efficiency at varying loads. 132kHz switching frequency with jittering to minimize EMI filter costs. Programmable output overvoltage protection with latching or non-latching options. Line undervoltage detection to prevent turn-off glitches. Specifications: Parameter Value Part Number: TOP258PN Series: TOPSwitch®-HX Description: Off-Line Switcher IC with Integrated 700V MOSFET Package: PDIP-8C (P Package) Power Capability – Enclosed Adapter: 48W (230VAC) / 35W (85-265VAC) Power Capability – Open Frame: 62W (230VAC) / 48W (85-265VAC) Peak Power Capability: 105W (230VAC) / 75W (85-265VAC) Switching Frequency: 66kHz (fixed, internal) MOSFET Breakdown Voltage: 700V (minimum) Duty Cycle Maximum: 78% Soft-Start Duration: 17ms Auto-Restart Duty Cycle: 2% Control Pin Voltage (Vc): 5.8V Control Pin Capacitance: 47μF (recommended) Line Undervoltage Threshold: 100VDC Line Overvoltage Threshold: 450VDC Current Limit (Minimum): 1.25A Current Limit: 1.44A Current Limit (Maximum): 1.66A Operating Junction Temperature: -40°C to +150°C Storage Temperature: -65°C to +150°C Footprint: Applications: Enclosed Adapters up to 35W continuous power (85-265VAC input). Open Frame Power Supplies up to 48W continuous power (85-265VAC input). Peak Power Applications up to 75W peak power for motor drives, printers, and audio equipment. Consumer Electronics DVD players, set-top boxes, game consoles, and home appliances. Chargers Battery chargers for power tools, smartphones, and portable devices. Industrial Power Supplies Auxiliary power supplies for industrial controls and instrumentation. Standby and Auxiliary Power Low-power standby supplies for TVs, monitors, and computers. LED Lighting Constant voltage/constant current LED drivers. White Goods Power supplies for washing machines, refrigerators, and air conditioners. PC Peripherals Power supplies for monitors, printers, and external hard drives. Package Include: 1x TOP258PN Offline Switcher Power Supply IC PDIP-8C Datasheet