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This literature is subject to all applicable copyright laws and is not for resale in any manner.FSL128MRT Green-Mode Fairchild Power Switch (FPS) for High Input Voltaage May 2012 FSL128MRT Green-Mode Fairchild Power Switch (FPS) for High Input Voltage Description Features The FSL128MRT is an integrated Pulse Width Internal Avalanched Rugged 800V SenseFET Modulation (PWM) controller and SenseFET specifically Advanced Soft Burst-Mode Operation for Low designed for offline Switch-Mode Power Supplies Standby Power and Low audible noise (SMPS) with minimal external components. The PWM controller includes an integrated fixed-frequency Under 40mW Standby Power Consumption oscillator, Under-Voltage Lockout (UVLO), Leading- at 265V and No-load Condition AC Edge Blanking (LEB), optimized gate driver, internal soft-start, temperature-compensated precise current Random Frequency Fluctuation for Low EMI sources for loop compensation, and self-protection Pulse-by-Pulse Current Limit circuitry. Compared with a discrete MOSFET and PWM controller solution, the FSL128MRT can reduce total Various Protection Functions: Overload Protection cost, component count, size, and weight while (OLP), Over-Voltage Protection (OVP), Abnormal simultaneously increasing efficiency, productivity, and Over-Current Protection (AOCP), Internal Thermal system reliability. This device provides a basic platform Shutdown (TSD) with Hysteresis and Under-Voltage suited for cost-effective design of a flyback converter. Lockout (UVLO) with Hysteresis Low Operating Current(0.4mA) in Burst Mode Internal Startup Circuit Built-in Soft-Start: 15ms Auto-Restart Mode Applications Power Supply for STB Home Appliances and Industrial for High AC Input Ordering Information (2) Output Power Table Operating (3) Current R Replaces DS(ON) 230V 15% 85~265V AC AC Part Number Package Junction Limit (Max.) Device Open Open (4) (4) Temperature Adapter Adapter (5) (5) Frame Frame TO-220F (1) -40C ~ KA5M0280RY FSL128MRT 6-Lead 1.2A 30W 40W 17W 25W 7.3 +125C DTU W-Forming Notes: 1. Pb-free package per JEDEC J-STD-020B. 2. The junction temperature can limit the maximum output power. 3. 230V or 100/115V with voltage doubler. AC AC 4. Typical continuous power in a non-ventilated enclosed adapter measured at 50C ambient temperature. 5. Maximum practical continuous power in an open-frame design at 50C ambient temperature. 2012 Fairchild Semiconductor Corporation www.fairchildsemi.com FSL128MRT Rev. 1.0.0