STMicroelectronics L6563HTR, Power Factor Controller, 70 kHz, 22.5 V 16-Pin, SOIC

On-board 700 V start-up source
Tracking boost function
Fast “bidirectional” input voltage feedforward (1/V2 correction)
Interface for cascaded converter's PWM controller
Remote ON/OFF control
Accurate adjustable output overvoltage protection
Protection against feedback loop disconnection (latched shutdown)
Inductor saturation protection
Low (≤ 100 μA) start-up current
6 mA max. operating bias current
1% (at TJ = 25 °C) internal reference voltage
-600/+800 mA totem pole gate driver with active pull-down during UVLO
Applications
PFC pre-regulators for:
Hi-end AC-DC adapter/charger
SMPS for LED luminaires