On-Bright OB3635A
OB3635A is an offline LED lighting controller with high power factor, low THD and high constant current (CC) precision. It can achieve low system cost for an isolated lighting application by primary High PF (>0.9) Low THD (| Part No. | OB3635A |
|---|---|
| Datasheet | OB3635A Download |
| Manufacturer |  On-Bright |
| Description | Low THD Offline LED Lighting Controller |
| Buy | Stock & Price |
GENERAL DESCRIPTION
FEATURES
It can achieve low system cost for an isolated lighting application by primary● High PF (>0.9)
● Low THD (<10%)
● High precision constant current regulation at side control in a single stage converter. It significantly simplifies the LED lighting system design by eliminating the secondary side feedback components and the opto-coupler. universal AC input
● Fast start-up (<0.5s)
● Primary-side sensing and regulation without TL431 and opto-coupler The proprietary CC control scheme is used and the system can achieve high power factor with constant on-time control scheme. Quasi-resonant
● Low system cost and high efficiency
● Quasi-resonant operation (QR) operation and clamping frequency greatly improves the system efficiency. The advanced start-up technology is used to meet the start-up to time requirement (<0.5s). The constant output current is compensated for tolerance of l transformer inductance variation. And the line compensation and load compensation are...
