Datasheet > LD7515LGL

LD7515LGL

更新时间： 2025-04-17 01:21:23

品牌	Logo	应用领域
通嘉科技 - LEADTREND		/
页数	文件大小	规格书
14页	562K
描述
Primary Side Quasi-Resonant BJT Controller with CV/CC Operation

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

LD7515LGL 数据手册

LD7515L

8/5/2015

Primary Side Quasi-Resonant BJT Controller

with CV/CC Operation

REV. 00

General Description

Features

The LD7515L is an excellent primary side feedback BJT

controller with CV/CC operation, integrated with several

functions of protections. It minimizes the component

counts and is available in a tiny SOT-26 package. Those

make it an ideal design for low cost applications.

 Primary-Side Feedback Control with Quasi-Resonant

Operation

 Direct Drive of BJT Switch

 Constant Voltage within 5%

 Built-In Adjustable Load Regulation Compensation

 Constant Current Control

It provides functions of ultra-low startup current,

green-mode power-saving operation and leading-edge

blanking of the current sensing. Also, the LD7515L

features Internal OTP (Over Temperature Protection) and

OVP (Over Voltage Protection) to prevent the circuit from

being damaged due to abnormal conditions.

 Ultra-Low Startup Current (<1.9A)

 0.5mA Low Operating Current at Light Load

 60 kHz Maximum Switching Frequency.

 Current Mode Control

 Green Mode Control Improve Efficiency

 LEB (Leading-Edge Blanking) on CS Pin

 Built-in Soft Start

In most cases, the power supply with primary-side

feedback controller would accompany with some serious

load regulation effect. To deal with this problem, the

LD7515L consists of dedicated load regulation

compensation circuit to enhance its performance.

 VCC OVP (Over Voltage Protection)

 FB Pin Open/Short Protection

 Internal OTP (Over Temperature Protection)

Applications



Mobile Phone Adapter



Lower Power AC/DC Adapter

Typical Application

Input

EMI

Filter

Input

VCC

OUT

LD7515L

GND

COMP

Leadtrend Technology Corporation www.leadtrend.com.tw

LD7515L-DS-00 August 2015

12 3 4 5 6 7...14

中文翻译

下载PDF

与LD7515LGL相关器件

型号	品牌	获取价格	描述	数据表
LD7516C	LEADTREND	获取价格	Primary Side Quasi-Resonant Controller Operating in CV/CC Mode
LD7516CGL	LEADTREND	获取价格	Primary Side Quasi-Resonant Controller Operating in CV/CC Mode
LD7535	ETC	获取价格	Green-Mode PWM Controller with Integrated Protections
LD7535B	ETC	获取价格	Green-Mode PWM Controller with Integrated Protections
LD7536	LEADTREND	获取价格	Green-Mode PWM Controller with Frequency Swapping and Integrated Protections
LD7536GL	LEADTREND	获取价格	Green-Mode PWM Controller with Frequency Swapping and Integrated Protections
LD7536GN	LEADTREND	获取价格	Green-Mode PWM Controller with Frequency Swapping and Integrated Protections
LD7536R	LEADTREND	获取价格	Green-Mode PWM Controller with Frequency Swapping and Integrated Protections
LD7536R-GL	LEADTREND	获取价格	Green-Mode PWM Controller with Frequency Swapping and Integrated Protections
LD7536R-GN	LEADTREND	获取价格	Green-Mode PWM Controller with Frequency Swapping and Integrated Protections