| 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 c... |
| Features |
Primary-Side Control with Single Stage PFC Topology No visible flicker No bleeder design Total harmonic distortion <20% with PF>0.9 Fast startup time (<0.5s without dimmer) Transition Mode (TM) operation to achieve high efficiency High current accuracy Source driving operation mode Cycle-by-Cycle Current Limiting (OCP) VDD Over ... |
| Datasheet |
 OB3663 Datasheet - 770.62KB |
