LL431NSL-AE2-R [UTC]
PROGRAMMABLE PRECISION REFERENCE;
| 型号： | LL431NSL-AE2-R |
| 厂家： | 
Unisonic Technologies |
| 描述： | PROGRAMMABLE PRECISION REFERENCE |
| 文件： | 总5页 (文件大小：251K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
LL431
LINEAR INTEGRATED CIRCUIT
PROGRAMMABLE PRECISION
REFERENCE
3
3
1
1
2
2
SOT-23-3
SOT-23
DESCRIPTION
(JEDEC TO-236)
(JEDEC SC-59)
The UTC LL431 is a three-terminal adjustable regulator with a
4
guaranteed thermal stability over applicable temperature ranges.
The output voltage may be set to any value between VREF
(approximately 2.5V) and 36 V with two external resistors. It
can be used in provides very wide applications including shunt
regulator, series regulator, switching regulator, voltage reference
and others.
5
3
2
1
1
SOT-25
SOT-89
FEATURES
*Programmable output Voltage to 36V.
*Sink current capability of 1.0 to 100mA.
*Equivalent full-range temperature coefficient of 50ppm/ C
typical for operation over full rated operating temperature range.
1
SOP-8
TO-92
ORDERING INFORMATION
Ordering Number
Pin Assignment
Package
Packing
Lead Free
LL431K-AB3-R
LL431K-AE2-R
LL431NSL-AE2-R
LL431K-AE3-R
LL431NSK-AE3-R
LL431K-AF5-R
LL431K-S08-R
LL431K-T92-B
LL431K-T92-K
LL431K-T92-R
Halogen Free
LL431G-AB3-R
LL431G-AE2-R
LL431NSG-AE2-R
LL431G-AE3-R
LL431NSG-AE3-R
LL431G-AF5-R
LL431G-S08-R
LL431G-T92-B
LL431G-T92-K
LL431G-T92-R
1
R
K
R
K
R
X
K
R
R
R
2
A
R
K
R
K
X
A
A
A
A
3
K
A
A
A
A
K
A
K
K
K
4
-
5
-
6
-
7
-
8
-
SOT-89
SOT-23-3
SOT-23-3
SOT-23
Tape Reel
Tape Reel
Tape Reel
Tape Reel
Tape Reel
Tape Reel
Tape Reel
Tape Box
Bulk
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
SOT-23
-
-
-
-
-
SOT-25
R
X
-
A
X
-
-
-
-
SOP-8
A
-
A
-
R
-
TO-92
TO-92
-
-
-
-
-
TO-92
-
-
-
-
-
Tape Reel
Note: Pin Code: K: Cathode
A: Anode
R: Reference
X: No Connection
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Copyright © 2018 Unisonic Technologies Co., Ltd
QW-R121-020.I
LL431
LINEAR INTEGRATED CIRCUIT
MARKING
SOT-23-3 / SOT-23
(LL431)
SOT-23-3 / SOT-23
(LL431NS)
SOT-25
4
3
5
LL431
G: Halogen Free
K: Lead Free
1
2
SOT-89
SOP-8
TO-92
BLOCK DIAGRAM
CATHODE
REFERENCE
CATHODE (K)
ANODE(A)
REFERENCE (R)
2.5V VREF
ANODE
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LL431
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS (Operating temperature range applies unless otherwise specified)
PARAMETER
SYMBOL
VKA
RATINGS
37
UNIT
V
Cathode Voltage
Cathode Current Range(Continuous)
Reference Input Current
SOT-89
IKA
-100 ~ +150
-0.05 ~ +10
500
mA
mA
mW
IREF
SOT-23-3/SOT-23
SOT-25
300
mW
Power Dissipation
PD
SOP-8
TO-92
600
770
mW
mW
C
Junction Temperature
Operating Temperature
Storage Temperature
TJ
+150
TOPR
TSTG
-40 ~ +85
-65 ~ +150
C
C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
VKA
RATINGS
VREF ~ 36
1 ~ 100
UNIT
V
Cathode Voltage
Cathode Current
IKA
mA
ELECTRICAL CHARACTERISTICS (TC= 25℃, unless otherwise specified.)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
LL431-A 2.483 2.495 2.507
LL431-1 2.470 2.495 2.520
V
V
V
V
Reference Input Voltage
VREF
VKA=VREF,IKA=10mA
LL431-2 2.520
LL431-3 2.445
-
-
2.545
2.470
Deviation of reference Input Voltage
Over temperature
V
KA=VREF,IKA=10mA
0C≦TA≦70C
VKA=10V~VREF
VKA=36V~10V
IKA=10mA, R1=10k, R2=
KA=10mA, R1=10k, R2=
TA =full Temperature
VREF/T
4.5
17
mV
Ratio of Change in Reference Input
Voltage to the Change in Cathode Voltage
-1.0
-2.7
VREF/VKA IKA=10mA
mV/V
μA
-0.5 -2.0
Reference Input Current
IREF
1.5
4
Deviation of Reference Input Current Over
Full Temperature Range
I
IREF/T
0.4
1.2
μA
Minimum Cathode Current for Regulation
Off-State Cathode Current
IKA(MIN) VKA=VREF
100
1.0
μA
μA
IKA(OFF) VKA=36V, VREF=0
0.05
0.5
V
KA=VREF, IKA=1 to 100mA
Dynamic Impedance
ZKA
Ω
f1.0kHz
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LL431
LINEAR INTEGRATED CIRCUIT
TEST CIRCUIT
For VKA=VREF
For VKA≧VREF
For IKA(OFF)
APPLICATION CIRCUIT
VIN
VIN
VoUT
VoUT
IN
VIN
VoUT
OUT
UTC7805
COMMON
R1
R1
R1
VREF
VREF
R2
VREF
R2
R2
UTC LL431
UTC LL431
UTC LL431
VOUT=(1+R1/R2)*VREF
VOUT=(1+R1/R2)*VREF
VOUT=(1+R1/R2)*VREF
Shutdown Regulator
Output Control of a Three
-Terminal Fixed Regulator
Higher-current Shunt Regulator
Constant-current Sink
Current Limiting or Current Source
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LL431
LINEAR INTEGRATED CIRCUIT
■ TYPICAL CHARACTERISTICS
Change in Reference Input Voltage vs.
Cathode Voltage
Cathode Current vs. Cathode Voltage
800
0
-5
IKA=100mA
TA=25°C
TA=25°C
VKA=VREF
600
-10
-15
-20
-25
-30
-35
-40
400
IKA(MIN)
200
0
-200
-50
-2
-1
0
1
2
3
0
5
10
15
20
25
30
35
40
Cathode Voltage (V)
Cathode Voltage (V)
Pulse Response
7
6
5
4
3
2
1
TA=25°C
0
-1
-1
0
1
2
3
4
5
6
7
Time (μs)
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all UTC products described or contained herein.
UTC products are not designed for use in life support appliances, devices or systems where malfunction
of these products can be reasonably expected to result in personal injury. Reproduction in whole or in
part is prohibited without the prior written consent of the copyright owner. UTC reserves the right to
make changes to information published in this document, including without limitation specifications and
product descriptions, at any time and without notice. This document supersedes and replaces all
information supplied prior to the publication hereof.
NISONIC TECHNOLOGIES CO., LTD
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