Single Stage Buck PFC Controller For LED Dimming Lighting
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- Parameters
- Features
- Description
| Part number | SY22651FAC |
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| Description | CC, buck PFC controller, PWM/analog dimming, 5% |
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| Topology | Buck |
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| Dimming mode | Analog, PWM |
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| PF (>) | 0.9 |
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| Input type | 120VAC, 230VAC |
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| Iout (max) (A) | |
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| Pout (max) (W) | 500 |
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| Package | SO8 |
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| Application | Buck, PWM/Analog dimming, PFC |
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- High Dimming Accuracy
- Dimming Range from 5.5% to 100%
- CV Mode for Bias Supply at <2.5% Dimming Signal
- Valley Turn-on of the MOSFET to Achieve Low Switching Losses
- Quick Start Up <500ms
- Internal High Current MOSFET Driver: 200mA Sourcing and 650mA Sinking
- Low Start Up Current: 34μA Typical
- Reliable Short LED and Open LED Protection
- Power Factor >0.90
- RoHS Compliant and Halogen Free
- Compact Package: SO8
The SY22651 is a single stage Buck PFC controller targeting at LED lighting applications with PWM or Analog dimming. It is a Buck converter operates in the quasi-resonant mode to achieve higher efficiency and keeps in constant on time operation to achieve high power factor. It adopts special design to achieve quick start up and reliable protection for safety requirement.
Evaluation Board
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
The EVB_SY22651FAC is intended for evaluating AC 90~264V input, 48V/340mA output Boost PFC Regulator
