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SY23431FAP (SY52441FAP)

Production
Secondary Side Synchronous Rectifier
Part number SY23431FAP
Topology Flyback
Integrated FETs(Yes/No) YES
Integrated FETs type MOS
Drain current (Conti.) (A) 19
Breakdown voltage (V) 100V
Ron (typ) (mΩ) 8
ZVS function NO
Operation mode CCM/QR/DCM
Dual supply channel YES
Features Drain voltage falling slope rate detection,Drain voltage blanking time detection,Wide Vout
Package SO8
Operating temperature range(°C) -40 to 125
Functional safety category
  • Suitable for CCM, DCM, and QR Flyback Converters
  • DRAIN Falling Slope Rate Detection to Avoid False Turn-On of SR MOSFET by Parasitic Ringing
  • DRAIN High Voltage Blanking Time Detection to Enhance System ESD Performance
  • Dual Source Power Supply for 3.3V to 21V Output Systems
  • Compact Package: SO8 

Evaluation Board

  • 2026-01-12_151450

    Photo of evaluation board

  • 2026-01-12_151512

    Photo of evaluation board

  • 2026-01-12_151434

    Photo of evaluation board

  • 2026-01-12_151502

    Photo of evaluation board

  • 2026-01-12_151502

    Photo of evaluation board

EVB_SY23431FAP

The EVB_SY23431FAP is intended for evaluating Secondary Side Synchronous Rectification

Technical Documentation

Title Date
Silergy_Catalog_Q2_2026 2026-06-12
SO8 2022-05-20