BPS BP3309
The BP3309 is a high precision primary-side regulation isolated flyback controller with single-stage Active PFC, specially designed for offline constant current LED lighting. The controller with on-chip PFC circuit operates in critical conduction mode to achieve high power factor and reduce the power MOSFET switching loss. It uses source driver architecture and patent pending internal charging circuit for low primary side switching loss, ultra fast VCC startup and LED turn on.| Part No. | BP3309 |
|---|---|
| Datasheet | BP3309 Download |
| Manufacturer |  BPS |
| Description | PSR Single-Stage APFC Offline LED Controller |
| Buy | Stock & Price |
DESCRIPTION
Using proprietary current sensing scheme, the controller can precisely control the LED current without secondary side sense and feedback circuit including opto-coupler. The BP3309 uses patent compensation method to achieve excellent line regulation, and it still can be tuned externally for flexibility. The controller also has outstanding load regulation for driving wide range of LED numbers. The BP3309 offers rich protection functions to improve the system reliability, including LED short circuit protection, LED open circuit protection, VCC over voltage protection, VCC under voltage protection, CS resistor short circuit protection, CS resistor open circuit protection, cycle-by-cycle current limit and die over-temperature protection. All the protection features are auto-recovery. Typical ApplicationFEATURES
● Single-Stage Active PFC for High Power Factor and Low THD● Primary Side Control Constant Current Operation, No Opto-Coupler required
● Ultra Fast LED Turn On( <200ms...
