FEATURES

 Primary-side sensing and regulation operates

in QR mode without TL431 and opto-coupler

 High precision constant voltage and current

regulation at universal AC input

 Programmable CV and CC regulation

 Good dynamic response

 Built-in line compensation for tight CC

regulation

 Built-in fixed cable compensation

 Built-in primary winding inductance

compensation

 Built-in control loop compensation

 Built-in leading edge blanking (LEB)

 Ultra low start-up current and low operating

current

 Comprehensive protection coverage with

auto-recovery

 VDD over voltage protection (VDD OVP)

 VDD under voltage lockout with

hysteresis (UVLO)

 Cycle-by-cycle current limiting

 Feedback open loop protection (OLP)

 Output short circuit protection (SCP)

APPLICATIONS

Medium level Power AC/DC offline SMPS for

 Cell phone charger

 Tablet PC

 AC/DC adapter

 Set-top box power supplies