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LD5523R - Multi-Mode PWM Controller

This page provides the datasheet information for the LD5523R, a member of the LD5523 Multi-Mode PWM Controller family.

Datasheet Summary

Description

In order to enhance the efficiency performance, the LD5523/R/H/E integrates the multi-mode PWM controller, which consists of Quasi-Resonant (QR) PWM control for light load condition and Continue Conduction Mode (CCM) for heavy load condition.

Features

  • Secondary-side feedback control with quasi-resonant + CCM operation.
  • Low Startup Current (.

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Datasheet preview – LD5523R

Datasheet Details

Part number LD5523R
Manufacturer Leadtrend Technology
File Size 921.17 KB
Description Multi-Mode PWM Controller
Datasheet download datasheet LD5523R Datasheet
Additional preview pages of the LD5523R datasheet.

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Full PDF Text Transcription

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LD5523/R/H/E 10/14/2016 Multi-Mode PWM Controller of Flyback with Integrated BNI/BNO and Protection REV. 00 General Description In order to enhance the efficiency performance, the LD5523/R/H/E integrates the multi-mode PWM controller, which consists of Quasi-Resonant (QR) PWM control for light load condition and Continue Conduction Mode (CCM) for heavy load condition. Moreover, the QR controller not only gains the system performance, but also brings the worse EMI capability, while the frequency swapping function of LD5523/R/H/E can reduce the EMI emission of SMPS and helps the power circuit designers to simply deal with EMI filter and saves several component and developing time.
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