Dongke Semiconductor DK812
The DK812 is a single stage AC-DC transformer controlling IC. It integrates 700V high voltage power transistor and primary peak current detecting circuit. It also includes Active Power Factor Correction, Primary Side Current Regulation, Output Voltage Control, Self-Power supply and LED loading circuit auto detection functions, can avoid LED loading damage.| Part No. | DK812 |
|---|---|
| Datasheet | DK812 Download |
| Manufacturer |  Dongke Semiconductor |
| Description | 6W PSR flyback active PFC LED driver chip |
| Buy | Stock & Price |
DESCRIPTION
Its integrated Active Power Factor Correction circuit can reach high power factor and low harmonic distortion. And because of its highly integrated MOS circuit design, lots of external components are saved, transformer design is simple, only two windings is needed for the transformer in isolated circuit and only one winding is needed in non-isolated circuit. 2.APPLICATIONS
6-32W LED Lighting 3. MAINFEATURES
● ±3% LED Current Accuracy.● Build-in 700V power transistor.
● 85V—265V wide range AC power input.
● Quasi-resonant mode, high circuit efficiency, η>90%.
● Patent self-power supply circuit design, no need for external winding power supply.
● Patent Primary Side Regulation control, no need for additional winding power supply.
● Single-Stage Active PFC(Power Factor Correction) for High Power Factor(PF>0.95) and Low THD.
● Suitable for several different circuit designs of constant current and limited voltage.
● Over current, Over loading, Over temperature, Over voltage, LED short circuit and LED open circuit Protection.
