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FEATURES AND BENEFITS ■ 50 kHz PWM with ±5% Frequency Jittering Cost Reduction of EMI Noise Filtering ■ Rugged 650 V Avalanche-Rated MOSFET Simplified Surge Absorption No VDSS Derating Required ■ Choice of rDS(on) (2.8 Ω or 3.95 Ω maximum) ■ Auto-Burst Mode for Stand-By Operation or Light Loads Less Transformer Audible Noise ■ Built-In Leading Edge Blanking ■ Soft Start and Low Start-Up Current Start-Up Circuit Disabled in Operation ■ Low Operating Current (4 mA max) ■ Automatic Burst Stand-By (intermittent operation) Input Power <0.1 W at No Load ■ Auto-Bias Function Stable Burst Operation Without Generating Interference ■ Internal Off-Timer Circuit ■ Built-In Constant-Voltage/Constant Current ■ Multiple Protections: Pulse-by-Pulse Overcurrent Protection (OCP) Overload Protection (OLP) with Auto Restart Latching Overvoltage Protection (OVP) Undervoltage Lockout (UVLO) with Hysteresis Latching Thermal Shutdown (TSD) ■ Molded Small-Size 8-Pin Package For Low-Height SMPS