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SY22678ABC (SY5839ABC)

Production
Single Stage Buck PFC Controller For LED Lighting
Datasheet
SY22678ABC Single Stage Buck PFC Controller For LED Lighting Datasheet
Part number SY22678ABC
Description PSR, QR, CC, Buck PFC controller
Topology Buck
Dimming mode Non-dimming
PF (>) 0.9
Input type 120VAC, 230VAC
Iout (max) (A)
Pout (max) (W) 100
Package SOT23-6
Application Buck, non dimming, PFC

 

  • Valley Turn-on of the MOSFET to Achieve Low Switching Loss
  • Power Factor >0.90 with Single-stage Conversion.
  • Low Start up Current: 15µA Typical
  • Quick Start up <500ms
  • Reliable Short LED and Open LED Protection
  • Power Factor >0.90 with Single-stage Conversion
  • RoHS Compliant and Halogen Free
  • Compact Package: SOT23-6

 

The SY22678 is a single stage Buck PFC controller targeting at LED lighting applications. 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

  • 2022-02-16_115232

    Photo of evaluation board

  • 2022-02-16_115245

    Photo of evaluation board

  • 2022-02-16_115258

    Photo of evaluation board

EVB_SY22678ABC

The EVB_SY22678ABC is intended for evaluating  AC 176~264V input, 80V/225mA output Single Stage Buck PFC Controller For LED Lighting

Technical Documentation

Title Date
Silergy_Catalog_Q2_2026 2026-06-12