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LM334AT PDF预览

LM334AT

更新时间: 2024-11-07 04:44:27
品牌 Logo 应用领域
意法半导体 - STMICROELECTRONICS /
页数 文件大小 规格书
16页 501K
描述
Three terminal adjustable current sources

LM334AT 数据手册

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LM134-LM234-LM334  
Three terminal adjustable current sources  
Features  
Operates from 1V to 40V  
0.02%/V current regulation  
Programmable from 1µA to 10mA  
±3% initial accuracy  
Z
TO-92  
(Plastic package)  
Description  
The LM134/LM234/LM334 are 3-terminal  
adjustable current sources characterized by:  
an operating current range of 10000: 1  
an excellent current regulation  
D
SO-8  
(Plastic micropackage)  
a wide dynamic voltage range of 1V t 10V  
The current is determined by an external resistor  
without requiring other external components.  
Pin connections  
Reverse voltages of up to 20V will only draw a  
current of several microamperes. This enables the  
circuit to operate as a rectifier and as a source of  
current in a.c. applications.  
TO-92  
(Bottom view)  
For the LM134/LM234/LM334, the voltage on the  
control pin is 64mV at +25°C and is directly  
proportional to the absolute temperature (°K). The  
simplest external resistor connection generates a  
current with approximately 0.33%/°C temperature  
dependence. Zero drift can be obtained by adding  
an additional resistor and a diode to the external  
circuit.  
v+  
2
ADJ  
1
v-  
3
SO-8  
(Top view)  
NC  
8
NC  
7
NC  
5
V-  
6
1
ADJ  
2
NC  
3
NC  
4
V+  
May 2007  
Rev 3  
1/16  
www.st.com  
16  

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