On-Bright Confidential to EUCHIPS
OB3663
Dimmable Flyback PSR Controller
GENERAL DESCRIPTION
The OB3663 is a high performance single stage AC/DC fly-back controller for dimmable LED luminaires.
The OB3663 integrates advanced digital processing core to eliminate visible flicker.
OB3663 offers fast startup feature, constant on-time control for power factor correction (PFC), zero current detector (ZCD) to ensure transition mode (TM) operation, and accurate current regulation.
OB3663 offers comprehensive protection coverage including VDD under
voltage lockout (UVLO), VDD over
voltage protection, load
voltage over
voltage protection, cycle-by-cycle current limiting, over temperature protection,...