LD5523 - Multi-Mode PWM Controller

Leadtrend Technology

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.

Key Features

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

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LD5523 multi-mode pwm controller by Leadtrend Technology - Datasheet Preview

Datasheet Details

Part number	LD5523
Manufacturer	Leadtrend Technology
File Size	921.17 KB
Description	Multi-Mode PWM Controller
Datasheet	LD5523 Datasheet

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Other Datasheets by Leadtrend Technology

Part Number	Description
LD5523E	Multi-Mode PWM Controller
LD5523H	Multi-Mode PWM Controller
LD5523P	Multi-Mode PWM Controller
LD5523Q	Multi-Mode PWM Controller
LD5523R	Multi-Mode PWM Controller

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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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.