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STR-W6756 - Universal-Input / 140W Off-Line Quasi-Resonant Flyback Switching Regulator

General Description

and applications information is provided in Application Note 28103.30, Series STRW6750 Off-Line Quasi-Resonant Flyback Switching Regulators.

The products described herein are manufactured in Japan by Sanken Electric Co., Ltd.

for sale by Allegro MicroSystems, Inc.

Key Features

  • Rugged 650 V Avalanche-Rated MOSFET Simplified Surge Absorption No VDSS Derating Required.
  • 0.73 Ω Maximum rDS(on).
  • Two Operational Modes by Automatic Switching: Quasi-Resonant Mode for Normal Operation Burst Mode for Standby Operation or Light Loads.
  • Automatic or Manually Triggered Burst Standby Input Power.

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Datasheet Details

Part number STR-W6756
Manufacturer Allegro MicroSystems
File Size 194.74 KB
Description Universal-Input / 140W Off-Line Quasi-Resonant Flyback Switching Regulator
Datasheet download datasheet STR-W6756 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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g n i h tors c t i a Sw egul R STR-W6756 Universal-Input/140 W Off-Line QuasiResonant Flyback Switching Regulator The STR-W6756 is a quasi-resonant regulator specifically designed to satisfy the requirements for increased integration and reliability in switch-mode power supplies. It incorporates a primary control and drive circuit with an avalanche-rated power MOSFET. The regulator exhibits only low-level high-frequency EMI noise because of soft switching of the MOSFET close to ground (bottom point). A bottom-skip function minimizes an increase of operational frequency during light loads to improve system efficiency over the entire load range.