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LTC1921IS8#TR PDF预览

LTC1921IS8#TR

更新时间： 2024-09-25 13:09:43
品牌 Logo 应用领域
凌特 - Linear 电源电路电源管理电路监视器光电二极管
页数 文件大小 规格书
12页 170K
描述
LTC1921 - Dual -48V Supply and Fuse Monitor; Package: SO; Pins: 8; Temperature Range: -40°C to 85°C

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中文翻译

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LTC1921IS8#TR 技术参数

是否Rohs认证： 不符合生命周期：Transferred
零件包装代码：SOIC包装说明：SOP,
针数：8Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.13可调阈值：NO
模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUITJESD-30 代码：R-PDSO-G8
JESD-609代码：e0长度：4.9025 mm
湿度敏感等级：1信道数量：2
功能数量：1端子数量：8
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
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：235认证状态：Not Qualified
座面最大高度：1.752 mm最大供电电压 (Vsup)：80 V
最小供电电压 (Vsup)：10 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：20
宽度：3.899 mmBase Number Matches：1

LTC1921IS8#TR 数据手册

 浏览型号LTC1921IS8#TR的Datasheet PDF文件第2页浏览型号LTC1921IS8#TR的Datasheet PDF文件第3页浏览型号LTC1921IS8#TR的Datasheet PDF文件第4页浏览型号LTC1921IS8#TR的Datasheet PDF文件第5页浏览型号LTC1921IS8#TR的Datasheet PDF文件第6页浏览型号LTC1921IS8#TR的Datasheet PDF文件第7页 
LTC1921  
Dual –48V Supply  
and Fuse Monitor  
U
FEATURES  
DESCRIPTIO  
The LTC®1921 monitors two independent –48V supplies,  
including their fuses, and drives up to three optoisolators  
to indicate status, in accordance with standard backplane  
specifications. Requiring only three noncritical resistors  
and optoisolators, the LTC1921 replaces multiple voltage  
comparators, a voltage reference and several precision  
resistors.  
■
Withstands Transient Voltages Up to 200V/–200V  
■
Requires No Precision External Components  
■
Independently Monitors Two –48V Supplies for  
– Undervoltage Faults: –38.5V ±1VMAX  
– Overvoltage Faults: –70V ±1.5VMAX  
■
Accurately Detects Undervoltage Fault Recovery:  
–43V ±0.5VMAX  
■
Monitors Two External Fuses  
The monitor features dual supply overvoltage and under-  
voltage detection circuits. The preset trip thresholds in-  
cludeovervoltage,undervoltageandundervoltagerecovery  
that are guaranteed over temperature and meet or exceed  
common backplane specifications. Additional built-in cir-  
cuitry detects the condition of supply fuses. Overvoltage  
and undervoltage detectors ignore fast supply transients,  
eliminating false detection. The LTC1921 operates from  
–10V to –80V with a typical power dissipation of less than  
10mW.  
■
Operates from –10V to –80V  
■
Tolerates DC Faults to –100V  
■
Tolerates Accidental Supply Reversal to 100V  
■
Small Footprint: 8-Lead MSOP Package  
Specified from –40°C to 85°C  
■
U
APPLICATIO S  
■
Telecom Backplanes or Switch Cards  
■
Networking Backplanes or Switch Cards  
■
High Voltage Fuse Monitoring  
The LTC1921 is available in 8-pin MSOP and SOIC pack-  
ages.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
TYPICAL APPLICATIO  
–48V  
RETURN  
47k  
47k 47k  
LOGIC  
SUPPLY  
R1  
100k  
R2  
100k  
FUSE GOOD  
–48V LOAD  
3
MOC207  
MOC207  
RTN  
4
1
8
V
V
OUT F  
SUPPLY A GOOD  
SUPPLY B GOOD  
A
SUPERVISOR  
µP  
B
LTC1921  
2
7
FUSE A  
FUSE B  
5
6
LOGIC  
COMMON  
OUT A  
MOC207  
OUT B  
R3  
47k  
1/4W  
D1 MURS320  
D2 MURS320  
F1  
F2  
SUPPLY A  
–48V  
1921 TA01  
SUPPLY B  
–48V  
1921f  
1
1234567...12

中文翻译

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LTC1921IS8#TR 替代型号

型号 品牌 替代类型 描述 数据表
LTC1921IS8#TRPBF Linear

完全替代

 LTC1921 - Dual -48V Supply and Fuse Monitor; Package: SO; Pins: 8; Temperature Range: -40&

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