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LM3549SQ PDF预览

LM3549SQ

更新时间: 2024-01-01 21:39:36
品牌 Logo 应用领域
美国国家半导体 - NSC 驱动器
页数 文件大小 规格书
8页 2821K
描述
IC LED DISPLAY DRIVER, QCC24, LLP-24, Display Driver

LM3549SQ 技术参数

是否无铅:不含铅是否Rohs认证:符合
生命周期:ActiveReach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
Factory Lead Time:6 weeks风险等级:5.25
Is Samacsys:N输入特性:STANDARD
接口集成电路类型:LED DISPLAY DRIVERJESD-30 代码:S-PQCC-N24
JESD-609代码:e3长度:4 mm
湿度敏感等级:1复用显示功能:NO
功能数量:1区段数:3
端子数量:24最高工作温度:85 °C
最低工作温度:-30 °C输出特性:CONSTANT-CURRENT
封装主体材料:PLASTIC/EPOXY封装代码:HVQCCN
封装等效代码:LCC24,.16SQ,20封装形状:SQUARE
封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度(摄氏度):260
电源:3/5 V认证状态:Not Qualified
座面最大高度:0.8 mm子类别:Display Drivers
最大压摆率:3 mA最大供电电压:5.5 V
最小供电电压:2.7 V标称供电电压:3.6 V
表面贴装:YES温度等级:OTHER
端子面层:Matte Tin (Sn)端子形式:NO LEAD
端子节距:0.5 mm端子位置:QUAD
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:4 mm
最小 fmax:20 MHzBase Number Matches:1

LM3549SQ 数据手册

 浏览型号LM3549SQ的Datasheet PDF文件第2页浏览型号LM3549SQ的Datasheet PDF文件第3页浏览型号LM3549SQ的Datasheet PDF文件第4页浏览型号LM3549SQ的Datasheet PDF文件第5页浏览型号LM3549SQ的Datasheet PDF文件第6页浏览型号LM3549SQ的Datasheet PDF文件第7页 
National Semiconductor  
Application Note 2062  
Anssi Raisanen  
LM3549 Evaluation Kit  
August 6, 2010  
device. The evaluation board has a microcontroller that acts  
as an USB to I2C interface. Microcontroller is also used to  
manipulate the digital control signals of the LM3549. LM3549  
evaluation board can be powered from the USB interface or  
from external power supply. If evaluation board is used to  
measure the electrical parameters of the LM3549 or used with  
high output currents external powersupply needs to be used.  
If evalution board is used to check the functionality of the  
LM3549 with small output currents or to support software de-  
velopment it can be powered directly from USB interface. This  
document describes how to get the LM3549 evaluation board  
up and running and how to use evaluation software.  
General Description  
The LM3549 is a high power LED driver with up to 700mA  
output current. It has three constant current LED drivers and  
a buck boost SMPS for driving RGB LEDs with high efficiency.  
LED drivers are designed for sequential drive so only one  
driver can be enabled at a time.  
LED driver output current settings can be stored to integrated  
non-volatile memory which allows stand-alone operation with-  
out I2C interface. Non-volatile memory is rewritable so current  
setting can be changed if needed.  
LM3549 has a fault detection feature that can detect several  
different fault conditions. In case of a fault error flags are set  
and FAULT output sends interrupt to control logic. Error flags  
can be read through I2C interface.  
What Is Needed  
To get started you will need:  
Total brightness can be controlled with PWM input or with  
master fader register if I2C interface is used.  
LM3549 evaluation board  
LM3549 evaluation software (LM3549.exe)  
USB Cable  
LM3549 Evaluation board is designed to help getting famil-  
iarized with the LM3549. It can be used to measure key  
parameters of the LM3549 and to speed up design in of the  
PC with one free USB port  
30125042  
FIGURE 1.  
© 2010 National Semiconductor Corporation  
301250  
www.national.com  

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