Features
• Built−in Avalanche Rugged 1000 V SenseFET
• Precise Fixed Operating Frequency: 50 kHz
• VCC can be Supplied from either Bias−winding or Self−biasing
• Soft Burst−Mode Operation Minimizing Audible Noise
• Random Frequency Fluctuation for Low EMI
• Pulse−by−Pulse Current Limit
• Various Protection Functions: Overload Protection (OLP),
Over−Voltage Protection (OVP), Abnormal Over−Current Protection
(AOCP), Internal Thermal Shutdown (TSD) with Hysteresis.
Under−Voltage Lockout (UVLO) and Line Over−Voltage Protection
(LOVP) with Hysteresis.
• Built−in Internal Startup and Soft−Start Circuit
• Fixed 1.6 s Restart Time for Safe Auto−Restart Mode of All
Protections
• These are Pb−Free Devices

Applications
• SMPS for Electric Metering
• Auxiliary Power Supply for 3−Phase Input Industrial Systems