APPLICATIONS
Offline AC/DC flyback converter for
■ Power Adapter
■ Set-Top Box Power Supplier
■ Open-frame SMPS

FEATURES
■ Power on soft start reducing MOSFET Vds
stress
■ Multi-Mode Operation
CCM @ Heavy Load and Low Line
Quasi-Resonant operation @ Medium Load
Green mode with valley skip @ Light Load
Burst Mode @ No Load
■ Frequency shuffling for EMI
■ Extended burst mode control for improved
efficiency and low standby power design
■ Audio noise free operation
■ Comprehensive protection coverage
o VCC Under Voltage Lockout with
hysteresis (UVLO)
o VCC Over Voltage Protection (VCC OVP)
o Cycle-by-cycle over current threshold
setting for constant output power limiting
over universal input voltage range
o Over Load Protection (OLP) with autorecovery
o External (if NTC resistor is connected at
PRT pin)or internal Over Temperature
Protection (OTP) with latched shut down
o Output Over Voltage Protection(Output
OVP) with latched shut down, and the
OVP triggered voltage can be adjusted by
the resistor connected between auxiliary
winding and PRT pin
o Output diode short protection with autorecovery