OB6561P/OB6563 is a high performance transition mode(TM) Power Factor Correction(PFC) control IC. Designed with On-Bright patented proprietary technology, OB6561P/OB6563 optimizes tradition transition mode control easily achieving system power factor to close to 1 with very low THD. OB6561P/OB6563 is full compliant with both IEC61000-3-2 and JEIDA- MITI requirements on THD control.


Features:

◆ Transition mode operation with built-in analog multiplier
◆ THD optimization
◆ System open loop protection
◆ Proprietary audio noise elimination
◆ Dynamic and static output over voltage protection(OVP)
◆ Cycle-by-Cycle current limiting
◆ Burst mode control for improved efficiency at light load
◆ External ENA/disable control
◆ Under voltage lockout with hysteresis (UVLO)
◆ Built in current sense filter, no external RC filter is needed
◆ Green mode operation (OB6563)
◆ Available in DIP8 and SOP8 packages,RoHS compliant



Applications:

◆ LCD TV POWER Supply
◆ Adapter
◆ PC Power
◆ Lighting Power

Typical Application: