Home Products LED Drivers AC LED Drivers Smart Dimming CC

SY5881VFAC

Production
DC/DC Buck Controller for LED Dimming Lighting
Datasheet
SY5881VFAC DC/DC Buck Controller for LED Dimming Lighting Datasheet
Part number SY5881VFAC
Description CC, buck controller, PWM/analog dimming, 2%
Topology Buck
Dimming mode Analog, PWM
PF (>) 0.5
Input type 40 to 400VDC
Iout (max) (A)
Pout (max) (W) 500
Package
Application Buck, PWM/Analog dimming
  • Linear dimming curve
  • Dimming Range from 2.5% to 100.0%
  • CV mode for Bias supply when PWM=0%
  • Valley turn-on to achieve low switching losses
  • Single winding inductor with floating topology
  • 200mA sourcing current and 600mA sinking current drive capability
  • Low start up current: 34μA typical
  • Reliable short LED and Open LED protection
  • Reliable short ISEN resistor protection
  • Compact package: SO8

The SY5881V is a DC/DC Buck controller targeting at LED lighting applications with analog dimming. It adopts the proprietary control architecture to achieve an accurate regulation of LED current and Quasi-Resonant valley turn-on high efficiency operation.

Evaluation Board

  • 2026-03-19_094918

    Photo of evaluation board

  • 2026-03-19_094904

    Photo of evaluation board

EVB_SY5881VFAC

The EVB_SY5881VFAC is intended for evaluating DC/DC Buck Controller for LED Dimming Lighting

 

Technical Documentation

Title Date
Silergy_Catalog_Q2_2026 2026-06-12