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參數資料
| 型號： | LM334 |
| 廠商： | 意法半導體 |
| 英文描述： | THREE TERMINAL ADJUSTABLE CURRENT SOURCES |
| 中文描述： | 三端可調電流源 |
| 文件頁數： | 1/10頁 |
| 文件大?。?/td> | 109K |
| 代理商： | LM334 |
Z
TO92
(Plastic Package)
.
OPERATESfrom 1V to 40V
.
0.02%V CURRENT REGULATION
.
PROGRAMMABLEfrom 1
μ
A to 10mA
.
±
3% INITIALACCURACY
DESCRIPTION
The LM134/LM234/LM334 are 3-terminal adjust-
able current sources characterizedby :
- an operatingcurrent rangeof 10000 : 1
- an excellent current regulation
- a widedynamic voltage range of 1V to 40V
The current is determined by an external resistor
without requiringotherexternal components.
Reverse voltagesof upto 20V will only draw a cur-
rent of several microamperes. This enables the
circuittooperateasarectifierandasasourceofcur-
rent in a.c. applications.
For the LM134/LM234/LM334,the voltage on the
controlpin is 64mVat +25
o
C and is directly propor-
tionaltotheabsolutetemperature(
o
K).Thesimplest
external resistor connection generates a current
with
≈
0.33%/
o
C temperature dependence. Zero
driftcanbeobtainedbyaddinganadditionalresistor
and a diode to the externalcircuit.
PIN CONNECTIONS
D
SO8
(PlasticMicropackage)
V+
ADJ
V
-
2
1
3
TO92
(Bottom view)
LM134-LM234
LM334
THREE TERMINAL ADJUSTABLE CURRENT SOURCES
8
7
6
5
1
2
3
4
V
+
NC
NC
V
NC
-
ADJ
NC
NC
SO8
(Topview)
ORDER CODES
Part Num-
ber
Temperature
Range
Package
Z
D
LM134
LM234
LM334
Example :
LM134Z
–55
o
C, +125
o
C
–25
o
C, +100
o
C
0
o
C, +70
o
C
October1997
1/10
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| LM334D | THREE TERMINAL ADJUSTABLE CURRENT SOURCES |
| LM334Z | THREE TERMINAL ADJUSTABLE CURRENT SOURCES |
| LM334 | 3-Terminal Adjustable Current Sources |
| LM334H | 3-Terminal Adjustable Current Sources |
| LM334M | 3-Terminal Adjustable Current Sources |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LM334AAP | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Three terminal adjustable current sources |
| LM334AD | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Three terminal adjustable current sources |
| LM334ADT | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Three terminal adjustable current sources |
| LM334AT | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Three terminal adjustable current sources |
| LM334AZ | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Three terminal adjustable current sources |
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