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The APR346 is a secondary side MOSFET driver for synchronous rectification, supports CCM, DCM and Quasi-Resonant Flyback Topologies.

The synchronous rectification can effectively reduce the secondary side rectifier power dissipation and provide high performance solution. By sensing primary MOSFET gate-to-source voltage, the APR346 can output ideal drive signal with less external components. It can provide high performance solution for 5V to 20V output voltage application. The APR346 is available in SOT26 package.


Adapters/Chargers for Cell/Cordless Phones, ADSL Modems, MP3 and Other Portable Apparatus


  • Synchronous Rectification for CCM, DCM Operation Flyback
  • Eliminate Resonant Ring Interference
  • Fewest External Components
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)

Product Specifications

Product Parameters

Internal Trigger Voltage N/A V
VCC Max 28
Operating Current 150 µA
Turn-Off Threshold Voltage -6 mV
Min On-Time (ns) N/A
Turn-Off Delay N/A ns
Drain Rating 200 V
Switching FET N/A

Related Content

SOT26 (SC74R)


Technical Documents

Additional Files

Recommended Soldering Techniques



Orderable Part Number Authorized Distributor Quantity Inventory Date Buy Online Region
APR346K6TR-G1 Digi-Key Electronics 1081 8/12/2020 Buy Now United States
APR346K6TR-G1 Mouser Electronics Inc. 1624 8/12/2020 Buy Now United States
APR346K6TR-G1 Future Electronics - Europe 20 8/11/2020 England