5秒后页面跳转
捷配首页

Datasheet > LM3557
LM3557 PDF预览

LM3557

更新时间： 2024-11-16 02:58:51
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
16页 396K
描述
Step-Up Converter for White LED Applications

阅读下载

中文翻译

获取价格

LM3557 数据手册

 浏览型号LM3557的Datasheet PDF文件第2页浏览型号LM3557的Datasheet PDF文件第3页浏览型号LM3557的Datasheet PDF文件第4页浏览型号LM3557的Datasheet PDF文件第5页浏览型号LM3557的Datasheet PDF文件第6页浏览型号LM3557的Datasheet PDF文件第7页 
LM3557  
www.ti.com  
SNVS338B –NOVEMBER 2004–REVISED FEBRUARY 2013  
LM3557 Step-Up Converter for White LED Applications  
Check for Samples: LM3557  
1
FEATURES  
DESCRIPTION  
The LM3557 is a complete solution for white LED  
drive applications. With minimal external component  
count, no DC current leakage paths to ground, cycle-  
by-cycle current limit protection, and output over-  
voltage protection circuitry, the LM3557 offer superior  
performance and cost savings over standard DC/DC  
boost component implementations.  
2
•
•
•
•
•
•
•
VIN Range: 2.7V–7.5V  
Small External Components  
1.25 MHz Constant-Switching Frequency  
Output Over-Voltage Protection  
Input Under-Voltage Protection  
Cycle-By-Cycle Current Limit  
The LM3557 switches at a fixed-frequency of 1.25  
MHz, which allows for the use of small external  
components. Also, the LM3557 has a wide input  
voltage range to take advantage of multi-cell input  
applications. With small external components, high  
fixed frequency operation, and wide input voltage  
range, the LM3557 is the most optimal choice for  
LED lighting applications.  
TRUE SHUTDOWN: No DC current paths to  
ground during shutdown  
•
•
Low Profile Package: <1 mm Height -8 Pin  
WSON  
No External Compensation  
APPLICATIONS  
•
•
•
White LED Display Lighting  
Cellular Phones  
PDAs  
Typical Application Circuit  
L
D
2.2 mH  
Vout  
Sw1 Ovp  
V
V
IN  
SUPPLY  
Cin  
4.7 mF  
Cout  
1 mF  
LM3557  
Fb  
En  
R2  
NC  
Gnd  
Sw2  
Figure 1. Backlight Configuration  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
2
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2004–2013, Texas Instruments Incorporated  
 
1234567...16

中文翻译

下载PDF

与LM3557相关器件

型号 品牌 获取价格 描述 数据表
LM3557SD-2 NSC

获取价格

 		Step-Up Converter for White LED Applications
LM3557SD-2 TI

获取价格

 		1.1A SWITCHING REGULATOR, 1600kHz SWITCHING FREQ-MAX, PDSO8, 1 MM HEIGHT, LLP-8
LM3557SD-2/NOPB TI

获取价格

 		Step-Up Converter for White LED Applications 8-WSON -40 to 85
LM3557SDX-2 NSC

获取价格

 		Step-Up Converter for White LED Applications
LM3557SDX-2 TI

获取价格

 		1.1A SWITCHING REGULATOR, 1600kHz SWITCHING FREQ-MAX, PDSO8, 1 MM HEIGHT, LLP-8
LM3557SDX-2/NOPB TI

获取价格

 		Step-Up Converter for White LED Applications 8-WSON -40 to 85
LM3559 TI

获取价格

 		LM3559 Synchronous Boost Flash Driver with Dual 900 mA High Side Current Sources (1.8A Tot
LM3559TLE TI

获取价格

 		LM3559 Synchronous Boost Flash Driver with Dual 900 mA High Side Current Sources (1.8A Tot
LM3559TLE/NOPB TI

获取价格

 		具有双路 900mA 高侧电流源的同步升压双 1A 闪光灯驱动器（总闪光电流为 1.8A）
LM3559TLX TI

获取价格

 		LM3559 Synchronous Boost Flash Driver with Dual 900 mA High Side Current Sources (1.8A Tot

与LM3557相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证