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參數(shù)資料
| 型號： | LM431LA |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Shunt Regulator |
| 中文描述： | 并聯(lián)穩(wěn)壓器 |
| 文件頁數(shù)： | 4/13頁 |
| 文件大?。?/td> | 764K |
| 代理商： | LM431LA |
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
V
REF
Reference Input
Voltage
1.222
1.240
1.258
1.228
1.240
1.252
1.234
1.240
1.246
V
Fig.1
V
KA
=V
REF
,I
KA
=10mA
0-70° C
-
-
-
-
2
1-
-
2
10
-40-85
° C
-40-125
° C
-
7.0
20
-
3
10
-
3
10
V
REF
Reference
Input
Voltage
Deviation
-
-
-
-
4
15
-
4
15
mV
Fig.1
(Note1)
V
KA
=V
REF
,I
KA
=10mA
V
REF/
V
KA
Ratio of Change in
Reference Input
Voltage to Change in
Cathode to Anode
Voltage
Reference
Input
Current
-
-0.6
-1.5
-
-0.5
-1.5
-
-0.5
-1.5
mV/V
Fig.2
IKA=
10mA
V
KA
=
V
KA(max)
~V
REF
I
REF
Ta=25°
C
-
0.15
0.3
-
0.15
0.4
-
0.15
0.4
μA
Fig.2
I
KA
=10mA, R1=10K
,
R2=
∞
I
REF
Reference Input
Current Deviation
Over Temperature
Range
-
0.05
0.08
-
0.1
0.4
-
0.1
0.4
μA
Fig.2
I
KA
=10mA, R1=10K
,
R2=
∞
I
MIN
Min. Cathode Current
For Regulation
-
55
80
-
55
80
-
55
80
μA
Fig.1
V
KA
=V
REF
-
2.6
1000
-
40
100
-
40
100
V
KA
= V
KA(max)
,
V
REF
=0V
I
OFF
Off-State Cathode
Current
-
-
-
-
10
50
-
10
50
nA
Fig.3
V
KA
=6V, V
REF
=0V
Z
KA
Dynamic Impedance
-
0.22
0.4
-
0.05
0.15
-
0.05
0.15
Fig.1
(Note2)
V
KA
=V
REF
,
I
KA
=1.0mA~ I
KA(max)
,
f
≤1.0KHz
Fig.1- Test Circuit for V
KA
=V
REF
Fig.2- Test Circuit for V
KA
>V
REF
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