Features
Quasi-Resonant Operation under all Line and Load Condition
Non-Audible-Noise Quasi-Resonant Control
High-Voltage Startup
Embedded VCC LDO to Guarantee Wide Range VCC_IN Voltage
Low VCC Charge Current Reduces Standby Power in Output Short Situation
Adaptive Burst Mode Operation with Output Voltage
Adaptive Output Power Limit with Output Voltage
Soft Start during Startup Process
Frequency Fold Back for High Average Efficiency
Constant Over Current Protection
Secondary Winding Short Protection with FOCP
Frequency Dithering for Reducing EMI
VCC Maintain Mode
Useful Pin Fault Protection:
SENSE Pin Floating
FB/Opto-Coupler Open/Short
Comprehensive System Protection Feature:
Programmable External OTP
Over Load Protection (OLP)
Brown In/Out Protection
Secondary-Side OVP (SOVP) and UVP (SUVP)
SSOP-9 (Type CJ) is Available
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)

Applications
Switching AC-DC Adapter/Charger
ATX/BTX Auxiliary Power
Set-Top Box (STB) Power Supply
Open Frame Switching Power Supply