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LM3544M-L PDF预览

LM3544M-L

更新时间: 2024-09-28 22:15:19
品牌 Logo 应用领域
美国国家半导体 - NSC 开关
页数 文件大小 规格书
13页 351K
描述
Quad Port USB Power Distribution Switch and Over-Current Protection

LM3544M-L 技术参数

是否Rohs认证: 不符合生命周期:Transferred
包装说明:SOIC-16Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.14其他特性:UNDERVOLTAGE LOCKOUT
可调阈值:NO模拟集成电路 - 其他类型:POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码:R-PDSO-G16JESD-609代码:e0
长度:9.9 mm湿度敏感等级:1
信道数量:2功能数量:2
端子数量:16最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装等效代码:SOP16,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):235电源:5 V
认证状态:Not Qualified座面最大高度:1.75 mm
子类别:Power Management Circuits最大供电电流 (Isup):0.8 mA
最大供电电压 (Vsup):5.5 V最小供电电压 (Vsup):2.7 V
标称供电电压 (Vsup):5 V表面贴装:YES
温度等级:INDUSTRIAL端子面层:Tin/Lead (Sn/Pb)
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:30
宽度:3.9 mmBase Number Matches:1

LM3544M-L 数据手册

 浏览型号LM3544M-L的Datasheet PDF文件第2页浏览型号LM3544M-L的Datasheet PDF文件第3页浏览型号LM3544M-L的Datasheet PDF文件第4页浏览型号LM3544M-L的Datasheet PDF文件第5页浏览型号LM3544M-L的Datasheet PDF文件第6页浏览型号LM3544M-L的Datasheet PDF文件第7页 
March 2001  
LM3544  
Quad Port USB Power Distribution Switch and  
Over-Current Protection  
General Description  
Features  
n 90m(typ.) High-Side MOSFET Switch  
n 500mA Continuous Current per Port  
The LM3544 is a quad high-side power switch that is an  
excellent choice for use in Root, Self-Powered and  
Bus-Powered USB (Universal Serial Bus) Hubs. Indepen-  
dent port enables, flag signals to alert USB controllers of  
error conditions, controlled start-up in hot-plug events, and  
short circuit protection all satisfy USB requirements.  
n 7 ms Fault Flag Delay Filters Hot-Plug Events  
n Industry Standard Pin Order  
n Short Circuit Protection with Power-Saving Current  
Foldback  
The LM3544 accepts input voltages between 2.7V and 5.5V.  
The Enable logic inputs, available in active-high and  
active-low versions, can be powered off any voltage in the  
2.7V to 5.5V range. The LM3544 limits the continuous  
current through a single port to 1.25A (max.) when it is  
shorted to ground.  
n Thermal Shutdown Protection  
n Undervoltage Lockout  
n Recognized by UL and Nemko CB  
n Input Voltage Range: 2.7V to 5.5V  
n 5µA Maximum Standby Supply Current  
n 16-Pin SOIC Package  
The low on-state resistance of the LM3544 switches ensures  
the LM3544 will satisfy USB voltage drop requirements,  
even when current through a switch reaches 500 mA. Thus,  
n Ambient Temperature Range: −40˚C to 85˚C  
High-Powered USB Functions, Low-Powered USB func- Applications  
tions, and Bus-Powered USB Hubs can all be powered off a  
Root or Self-Powered USB Hub containing the LM3544.  
n USB Root, Self-Powered, and Bus-Powered Hubs  
n USB Devices such as Monitors and Printers  
n General Purpose High Side Switch Applications  
Added features of the LM3544 include current foldback to  
reduce power consumption in current overload conditions,  
thermal shutdown to prevent device failure caused by  
high-current overheating, and undervoltage lockout to keep  
switches from operating if the input voltage is below  
acceptable levels.  
10120832  
10120833  
Functional Diagram  
10120801  
© 2001 National Semiconductor Corporation  
DS101208  
www.national.com  

LM3544M-L 替代型号

型号 品牌 替代类型 描述 数据表
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