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LM334SM PDF预览

LM334SM

更新时间: 2024-11-06 22:51:55
品牌 Logo 应用领域
美国国家半导体 - NSC 模拟IC信号电路光电二极管
页数 文件大小 规格书
14页 276K
描述
3-Terminal Adjustable Current Sources

LM334SM 技术参数

是否Rohs认证: 不符合生命周期:Transferred
包装说明:PLASTIC, SOIC-8Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5Is Samacsys:N
模拟集成电路 - 其他类型:ANALOG CIRCUITJESD-30 代码:R-PDSO-G8
JESD-609代码:e0长度:4.9 mm
湿度敏感等级:1功能数量:1
端子数量:8最高工作温度:70 °C
最低工作温度:封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装等效代码:SOP8,.25
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:1.75 mm子类别:Power Management Circuits
最大供电电压 (Vsup):40 V最小供电电压 (Vsup):1 V
表面贴装:YES技术:BIPOLAR
温度等级:COMMERCIAL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

LM334SM 数据手册

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March 2000  
LM134/LM234/LM334  
3-Terminal Adjustable Current Sources  
LED driver, and temperature sensing. The LM234-3 and  
LM234-6 are specified as true temperature sensors with  
General Description  
The LM134/LM234/LM334 are 3-terminal adjustable current  
sources featuring 10,000:1 range in operating current, excel-  
lent current regulation and a wide dynamic voltage range of  
1V to 40V. Current is established with one external resistor  
and no other parts are required. Initial current accuracy is  
±
±
guaranteed initial accuracy of 3˚C and 6˚C, respectively.  
These devices are ideal in remote sense applications be-  
cause series resistance in long wire runs does not affect ac-  
curacy. In addition, only 2 wires are required.  
The LM134 is guaranteed over a temperature range of  
−55˚C to +125˚C, the LM234 from −25˚C to +100˚C and the  
LM334 from 0˚C to +70˚C. These devices are available in  
TO-46 hermetic, TO-92 and SO-8 plastic packages.  
±
3%. The LM134/LM234/LM334 are true floating current  
sources with no separate power supply connections. In addi-  
tion, reverse applied voltages of up to 20V will draw only a  
few dozen microamperes of current, allowing the devices to  
act as both a rectifier and current source in AC applications.  
Features  
n Operates from 1V to 40V  
n 0.02%/V current regulation  
n Programmable from 1µA to 10mA  
n True 2-terminal operation  
The sense voltage used to establish operating current in the  
LM134 is 64mV at 25˚C and is directly proportional to abso-  
lute temperature (˚K). The simplest one external resistor  
connection, then, generates a current with +0.33%/˚C tem-  
perature dependence. Zero drift operation can be obtained  
by adding one extra resistor and a diode.  
n Available as fully specified temperature sensor  
Applications for the current sources include bias networks,  
surge protection, low power reference, ramp generation,  
±
n
3% initial accuracy  
Connection Diagrams  
SO-8  
Surface Mount Package  
SO-8 Alternative Pinout  
Surface Mount Package  
TO-46  
Metal Can Package  
DS005697-12  
DS005697-24  
DS005697-25  
V
Pin is electrically connected to case.  
Order Number LM334M or  
LM334MX  
See NS Package Number M08A  
Order Number LM334SM or  
LM334SMX  
See NS Package Number M08A  
Bottom View  
Order Number LM134H,  
LM234H or LM334H  
See NS Package  
Number H03H  
TO-92 Plastic Package  
DS005697-10  
Bottom View  
Order Number LM334Z, LM234Z-3 or LM234Z-6  
See NS Package Number Z03A  
© 2000 National Semiconductor Corporation  
DS005697  
www.national.com  

LM334SM 替代型号

型号 品牌 替代类型 描述 数据表
LM334MX/NOPB TI

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LM334M/NOPB TI

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LM334DT STMICROELECTRONICS

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