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