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LM431L Datasheet(PDF) 4 Page - List of Unclassifed Manufacturers

Part # LM431L
Description  Shunt Regulator
Download  13 Pages
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Manufacturer  ETC2 [List of Unclassifed Manufacturers]
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LM431L Datasheet(HTML) 4 Page - List of Unclassifed Manufacturers

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Shunt Regulator
Rev. A/DX 2007-06-04
LM431L
www.taitroncomponents.com
Page 4 of 13
Electrical Characteristics (T
A=25ºC, unless otherwise specified)
LM431L
LM431LA
LM431LB
Symbol
Description
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
Unit
Test
Circuit
Conditions
VREF
Reference Input
Voltage
1.222
1.240
1.258
1.228
1.240
1.252
1.234
1.240
1.246
V
Fig.1
VKA=VREF,IKA=10mA
0-70° C
-
-
-
-
2
1-
-
2
10
-40-85
° C
-
7.0
20
-
3
10
-
3
10
∆VREF
Reference
Input
Voltage
Deviation
-40-125
° C
-
-
-
-
4
15
-
4
15
mV
Fig.1
(Note1)
VKA=VREF,IKA=10mA
∆VREF/∆VKA
Ratio of Change in
Reference Input
Voltage to Change in
Cathode to Anode
Voltage
-
-0.6
-1.5
-
-0.5
-1.5
-
-0.5
-1.5
mV/V
Fig.2
IKA=
10mA
∆VKA=
VKA(max)
~VREF
IREF
Reference
Input
Current
Ta=25°
C
-
0.15
0.3
-
0.15
0.4
-
0.15
0.4
µA
Fig.2
IKA=10mA, R1=10KΩ,
R2=∞
∆IREF
Reference Input
Current Deviation
Over Temperature
Range
-
0.05
0.08
-
0.1
0.4
-
0.1
0.4
µA
Fig.2
IKA=10mA, R1=10KΩ,
R2=∞
IMIN
Min. Cathode Current
For Regulation
-
55
80
-
55
80
-
55
80
µA
Fig.1
VKA=VREF
-
2.6
1000
-
40
100
-
40
100
VKA= VKA(max),
VREF=0V
IOFF
Off-State Cathode
Current
-
-
-
-
10
50
-
10
50
nA
Fig.3
VKA=6V, VREF=0V
ZKA
Dynamic Impedance
-
0.22
0.4
-
0.05
0.15
-
0.05
0.15
Fig.1
(Note2)
VKA=VREF,
IKA=1.0mA~ IKA(max),
f≤1.0KHz
Fig.1- Test Circuit for VKA=VREF
Fig.2- Test Circuit for VKA>VREF


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