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LD8521 - Synchronous Rectification Driver

General Description

LD8521 is a secondary side Synchronous Rectification (SR) driver IC.

With LD8521 Optimal Dead Time control method, switch power supply not only can achieve high efficiency in dynamic load but also operation safety.

Key Features

  • Suited for Low Side and High Side Flyback Synchronous Rectification in QR mode.
  • Optimal Dead Time Control.
  • Quickly Response for Dynamic Load.
  • Enable Function.
  • 250uA Ultra Low Green Mode Operation Current.
  • Load Regulation Improve Function.

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Datasheet Details

Part number LD8521
Manufacturer Leadtrend Technology
File Size 463.20 KB
Description Synchronous Rectification Driver
Datasheet download datasheet LD8521 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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Synchronous Rectification Driver with Green Mode Function LD8521 07/28/2016 REV. 00 General Description LD8521 is a secondary side Synchronous Rectification (SR) driver IC. With LD8521 Optimal Dead Time control method, switch power supply not only can achieve high efficiency in dynamic load but also operation safety. LD8521 is suited for Flyback low side and high side Synchronous Rectification in QR (quasi-resonance) mode. In light load condition, LD8521 will enter Green Mode to reduce operation current by stopping SR MOSFET driving function. Load Regulation Improve function is an innovative design in LD8521. With this unique function, switch power supply can achieve better Load Regulation easily. Features  Suited for Low Side and High Side Flyback Synchronous Rectification in QR mode.