Diodes Incorporated — Analog and discrete power solutions
SOT26

Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details. SOT26

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APR340 (NRND)

NRND = Not Recommended for New Design

Alternative Part: APR349,

Optimizing for supporting Active Clamp Flyback Operation (ACF)

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Description

The APR340 is a secondary side MOSFET driver for synchronous rectification in DCM operation. 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 APR340 can output ideal drive signal with less external components. The APR340 is available in the SOT26 package.

Feature(s)

  • Synchronous Rectification for DCM Operation Flyback
  • Eliminate Resonant Ring Interference
  • Fewest External Components
  • Totally Lead-Free & Fully RoHS Compliant 
  • Halogen- and Antimony-Free. “Green” Device 
  • For automotive applications requiring specific change
    control (i.e. parts qualified to AEC-Q100/101/200, PPAP
    capable, and manufactured in IATF 16949 certified facilities),
    please contact us or your local Diodes representative.
    https://www.diodes.com/quality/product-definitions/

Application(s)

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

Specifications & Technical Documents

Product Parameters

OperatingCurrent (µA)

150

Operation Mode

ACF

Release Date

202105

Turn-OffDelay (ns)

100

Turn-OffThresholdVoltage (mV)

-5

VCC Maximum Rating

28

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Packages

Purchase & Availability

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Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2770 2025-10-30 2025-10-30 Add Fab Site Code, Country of Diffusion (COD) and Assembly Site Origin (ASO) on Product and Shipping Labels for all Diodes Products