Flyback Regulator For LED Lighting
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- Parameters
- Features
- Description
| Part number |
SY22775FAC |
| Description |
Self bias, QR, Flyback, 4 drain with 650V/4.4Ω MOS |
| Topology |
Flyback |
| Dimming mode |
Non-dimming |
| PF (>) |
0.9 |
| Input type |
230VAC |
| Iout (max) (A) |
|
| Pout (max) (W) |
20 |
| Package |
SO8 |
| Application |
Flyback, non dimming, PFC |
- Integrated 650V MOSFET
- Quasi-Resonant (QR) Mode to Achieve Low Switching Losses
- No Opto-coupler or Auxiliary Winding for Feedback in the Proprietary Floating Switch Configuration
- Reliable Short LED and Open LED Protection
- Thermal Foldback Function
- Power Factor>0.9 with Internal Loop Compensation
- Maximum Output Power : 20W
- RoHS Compliant and Halogen Free
- Compact Package: SO8
SY22775 is a single stage Flyback PFC regulator targeting at LED lighting applications.
SY22775 integrates a 650V MOSFET to decrease physical volume. It adopts the proprietary control architecture to achieve an accurate regulation of LED current, unity power factor.Quasi-Resonant valley turn-on for high efficiency operation. Proprietary self-bias technique saves the bias supply and reduces the start up time.
SY22775 integrates open/short LED protection and eliminates the need for opto-coupler or auxiliary winding (in floating switch application), thus minimizing the component count and board size.
Evaluation Board
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Photo of evaluation board
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Photo of evaluation board
The EVB_SY22775FAC is intended for evaluating AC 176~264V input, 48V/330mA output Flyback Regulator For LED Lighting
