Features                                                                    

■ Proprietary multiplier design for minimum THD

■ Very accurate adjustable output overvoltage

   protection

■ Ultra-low (30µA) Start-up current

■ Low (2.5mA) quiescent current

■ Digital leading-edge blanking on current sense

■ Disable function on E/A input

■ 1% (@ TJ = 25 °C) internal reference voltage

■ -600/+800mA totem pole gate driver with active

   pull-down during UVLO and voltage clamp

■ DIP-8/SO-8 packages

Applications

PFC pre-regulators for:

■ IEC61000-3-2 compliant SMPS (Flat TV,

   monitors, desktop PC, games)

■ HI-END AC-DC adapter/charger up to 400W

■ Electronic ballast

■ Entry level server & web server

Figure 1. Block diagram