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SY5881DFAP (SY5881DFACP)

Production
DC/DC Buck Controller for LED Dimming Lighting
Datasheet
SY5881DFAP DC/DC Buck Controller for LED Dimming Lighting Datasheet
Part number SY5881DFAP
Description CC, buck controller, PWM/analog dimming, 1%
Topology Buck
Dimming mode Analog, PWM
PF (>) 0.5
Input type 40 to 400VDC
Iout (max) (A)
Pout (max) (W) 500
Package SO8
Application Buck, PWM/Analog dimming
  • Linear Dimming Curve
  • Dimming Depth Lower than 1%
  • Valley Turn-on to Achieve Low Switching Losses
  • 250mA Sourcing Current and 600mA Sinking Current Drive Capability
  • Low Start up Current: 40μA Typical
  • Reliable Short LED and Open LED Protection
  • Reliable Short ISEN Resistor Protection
  • Compact Package: SO8

The SY5881D 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. The SY5881D supports analog dimming function and it has a linear dimming curve. It integrates open/short LED protection. 

Evaluation Board

  • 2026-05-06_112558

    Photo of evaluation board

  • 2026-05-06_112548

    Photo of evaluation board

EVB_SY5881DFAP

The EVB_SY5881DFAP is intended for evaluating DC/DC Buck Controller for LED Dimming Lighting

Technical Documentation

Title Date
Silergy_Catalog_Q2_2026 2026-06-12