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