TL1431U/EM [TI]
CLASS V, PRECISION PROGRAMMABLE REFERENCE;
| 型号： | TL1431U/EM |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | CLASS V, PRECISION PROGRAMMABLE REFERENCE |
| 文件： | 总14页 (文件大小：282K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TL1431-SP
www.ti.com
SLVSB44B –JULY 2012–REVISED SEPTEMBER 2013
CLASS V, PRECISION PROGRAMMABLE REFERENCE
Check for Samples: TL1431-SP
1
FEATURES
JG PACKAGE
(TOP VIEW)
•
QMLV Qualified to 100k Rad RHA,
SMD 5962R99620
CATHODE
NC
REF
1
2
3
4
8
7
6
5
•
•
•
•
•
•
0.4% Initial Voltage Tolerance
0.2-Ω Typical Output Impedance
Fast Turnon…500 ns
NC
NC
ANODE
NC
NC
Sink Current Capability…1 mA to 100 mA
Low Reference Current (REF)
NC – No internal connection
Adjustable Output Voltage…VI(ref) to 36 V
DESCRIPTION/ORDERING INFORMATION
The TL1431 is a precision programmable reference with specified thermal stability over automotive, commercial,
and military temperature ranges. The output voltage can be set to any value between VI(ref) (approximately 2.5 V)
and 36 V with two external resistors. This device has a typical output impedance of 0.2 Ω. Active output circuitry
provides a very sharp turnon characteristic, making the device an excellent replacement for Zener diodes and
other types of references in applications such as onboard regulation, adjustable power supplies, and switching
power supplies.
The TL1431 is characterized for operation over the full military temperature range of –55°C to 125°C.
ORDERING INFORMATION(1)
TA
PACKAGE
ORDERABLE PART NUMBER
TOP-SIDE MARKING
9962001VPA
5962-9962001VPA
CDIP – JG
CFP – U
Tube of 50
Tube of 25
–55°C to 125°C
5962R9962001VPA
R9962001VPA
R9962001VHA
5962R9962001VHA
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
SYMBOL
REF
ANODE
CATHODE
FUNCTIONAL BLOCK DIAGRAM
+
−
REF
V
ref
ANODE
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2012–2013, Texas Instruments Incorporated
TL1431-SP
SLVSB44B –JULY 2012–REVISED SEPTEMBER 2013
www.ti.com
EQUIVALENT SCHEMATIC
1
CATHODE
800 Ω
800 Ω
8
20 pF
REF
150 Ω
10 kΩ
3.28 kΩ
4 kΩ
20 pF
7.2 kΩ
2.4 kΩ
1 kΩ
800 Ω
2, 3, 6, 7
ANODE
Absolute Maximum Ratings(1)
over operating free-air temperature range (unless otherwise noted)
MIN
MAX
37
UNIT
V
VKA
IKA
Cathode voltage(2)
Continuous cathode current range
Reference input current range
–100
150
10
mA
mA
II(ref)
–0.05
JG package
U package
14.5
19.1
150
260
150
θJC
Package thermal impedance(3) (4)
°C/W
TJ
Operating virtual junction temperature
Lead temperature
°C
°C
°C
1,6 mm (1/16 in) from case for 10 s
Tstg
Storage temperature range
–65
(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) All voltage values are with respect to ANODE, unless otherwise noted.
(3) Maximum power dissipation is a function of TJ(max), θJC, and TC. The maximum allowable power dissipation at any allowable case
temperature is PD = (TJ(max) – TC)/θJC. Operating at the absolute maximum TJ of 150°C can affect reliability.
(4) The package thermal impedance is calculated in accordance with MIL-STD-883.
Recommended Operating Conditions
MIN
VI(ref)
1
MAX
36
UNIT
V
VKA
IKA
TA
Cathode voltage
Cathode current
100
125
mA
°C
Operating free-air temperature
–55
2
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SLVSB44B –JULY 2012–REVISED SEPTEMBER 2013
Electrical Characteristics
at specified free-air temperature, IKA = 10 mA (unless otherwise noted)
TEST
CIRCUIT
(1)
PARAMETER
TEST CONDITIONS
TA
MIN
2475
2460
TYP
MAX UNIT
25°C
2500
2540
VI(ref)
Reference input voltage
VKA = VI(ref)
Figure 1
mV
Full
range
2550
Deviation of reference input
voltage over full temperature
range(2)
Full
range
VI(dev)
VKA = VI(ref)
Figure 1
Figure 2
17
55(3)
mV
Ratio of change in reference
input voltage to the change in
cathode voltage
∆VI(ref)
∆VKA
Full
range
ΔVKA = 3 V to 36 V
–1.1
1.5
–2 mV/V
2.5
25°C
II(ref)
Reference input current
R1 = 10 kΩ, R2 = ∞
Figure 2
μA
Full
range
5
Deviation of reference input
current over full temperature
range(2)
Full
range
II(dev)
R1 = 10 kΩ, R2 = ∞
Figure 2
Figure 1
0.5
3(3)
μA
Minimum cathode current for
regulation
Imin
VKA = VI(ref)
25°C
25°C
0.45
0.18
1
0.5
2
mA
Ioff
Off-state cathode current
Output impedance(4)
VKA = 36 V, VI(ref) = 0
Figure 3
Figure 1
μA
Full
range
VKA = VI(ref), f ≤ 1 kHz,
IKA = 1 mA to 100 mA
|zKA
|
25°C
0.2
0.4
Ω
(1) Full range is –55°C to 125°C.
(2) The deviation parameters VI(dev) and II(dev) are defined as the differences between the maximum and minimum values obtained over the
rated temperature range. The average full-range temperature coefficient of the reference input voltage αVI(ref) is defined as:
V
(
)
I dev
× 106
(
(
V
at 25
C
°
Max V
(
)
I ref
I(ref)
ppm
αVI(ref)
=
(
(
TA
°C
V
I(dev)
where:
∆T is the rated operating temperature range of the device.
A
Min V
I(ref)
˙T
A
αVI(ref) is positive or negative, depending on whether minimum VI(ref) or maximum VI(ref), respectively, occurs at the lower temperature.
(3) On products compliant to MIL-PRF-38535, this parameter is not production tested.
∆VKA
∆IKA
|zKA| =
(4) The output impedance is defined as:
When the device is operating with two external resistors (see Figure 2), the total dynamic impedance of the circuit is given by:
∆V
∆I
R1
R2
|z'| =
|z |
1 +
KA
(
.
, which is approximately equal to
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SLVSB44B –JULY 2012–REVISED SEPTEMBER 2013
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PARAMETER MEASUREMENT INFORMATION
V
KA
Input
V
KA
Input
I
I
KA
KA
R1
I
I(ref)
V
I(ref)
V
I(ref)
R2
R1
R2
I(ref) ǒ1 ) Ǔ) I
V
+ V
R1
KA
I(ref)
Figure 1. Test Circuit for V(KA) = Vref
Figure 2. Test Circuit for V(KA) > Vref
Input
V
KA
I
off
Figure 3. Test Circuit for Ioff
4
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Product Folder Links: TL1431-SP
TL1431-SP
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SLVSB44B –JULY 2012–REVISED SEPTEMBER 2013
TYPICAL CHARACTERISTICS
Data at high and low temperatures are applicable only within the recommended operating free-air temperature
ranges of the various devices.
REFERENCE VOLTAGE
vs
REFERENCE CURRENT
vs
FREE-AIR TEMPERATURE
FREE-AIR TEMPERATURE
2.5
2
2.52
2.51
2.5
I
= 10 mA
R1 = 10 kΩ
R2 = ∞
KA
V
= V
KA
= 10 mA
I(ref)
I
KA
1.5
1
2.49
2.48
0.5
0
0
75
− 50 − 25
25
50
100
125
− 50 − 25
0
25
50
75
100
125
T − Free-Air Temperature − °C
A
T − Free-Air Temperature − °C
A
Figure 4.
Figure 5.
CATHODE CURRENT
vs
CATHODE CURRENT
vs
CATHODE VOLTAGE
CATHODE VOLTAGE
150
800
600
400
200
V
= V
I(ref)
V
= V
I(ref)
KA
KA
T = 25°C
A
T = 25°C
A
100
50
0
− 50
− 100
− 150
0
− 200
− 3
− 2
− 1
0
1
2
3
−2
−1
0
1
2
3
4
V
KA
− Cathode Voltage − V
V
KA
− Cathode Voltage − V
Figure 6.
Figure 7.
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SLVSB44B –JULY 2012–REVISED SEPTEMBER 2013
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TYPICAL CHARACTERISTICS (continued)
OFF-STATE CATHODE CURRENT
RATIO OF DELTA REFERENCE VOLTAGE TO
vs
DELTA CATHODE VOLTAGE
vs
FREE-AIR TEMPERATURE
0.4
0.35
0.3
FREE-AIR TEMPERATURE
V
V
= 36 V
−0.85
KA
= 0
V
KA
= 3 V to 36 V
I(ref)
−0.95
−1.05
−1.15
−1.25
−1.35
−1.45
0.25
0.2
0.15
0.1
0.05
0
− 25
0
25
50
75
100
125
−50
−50 − 25
0
25
50
75
100
125
T
A
− Free-Air Temperature − °C
T
A
− Free-Air Temperature − °C
Figure 8.
Figure 9.
EQUIVALENT INPUT-NOISE VOLTAGE
vs
FREQUENCY
260
240
220
200
I
T
= 10 mA
= 25°C
O
A
180
160
140
120
100
10
100
1 k
10 k
100 k
f − Frequency − Hz
Figure 10.
6
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Product Folder Links: TL1431-SP
TL1431-SP
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SLVSB44B –JULY 2012–REVISED SEPTEMBER 2013
APPLICATION INFORMATION
A. R should provide cathode current ≥1 mA to the TL1431 at minimum V(BATT)
.
R
V
(BATT)
V
(BATT)
V
O
R1
0.1%
V
O
V
I(ref)
TL1431
V
on
≈ 2 V
V
off
≈ V
(BATT)
R2
0.1%
Input
TL1431
V
IT
= 2.5 V
R1
R2
+ ǒ1 ) ǓVI(ref)
V
GND
O
Figure 16. Shunt Regulator
Figure 17. Single-Supply Comparator With
Temperature-Compensated Threshold
A. R should provide cathode current ≥1 mA to the TL1431 at minimum V(BATT)
.
V
(BATT)
V
(BATT)
In
Out
V
O
µA7805
R
2N2222
30 Ω
Common
R1
R2
2N2222
TL1431
0.01 µF
4.7 kΩ
TL1431
V
O
R1
0.1%
R2
0.1%
R1
R2
R1
R2
+ ǒ1 ) ǓVI(ref)
V
V + ǒ1 ) ǓVI(ref)
O
Min V = V
+ 5 V
I(ref)
Figure 18. Precision High-Current Series Regulator
Figure 19. Output Control of a Three-Terminal
Fixed Regulator
A. Refer to the stability boundary conditions in Figure 15 to determine allowable values for C.
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SLVSB44B –JULY 2012–REVISED SEPTEMBER 2013
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R
V
(BATT)
V
O
V
O
V
(BATT)
R1
R1
TL1431
C
R2
R2
TL1431
R1
R2
+ ǒ1 ) ǓVI(ref)
V
R1
R2
trip
+ ǒ1 ) ǓVI(ref)
V
O
Figure 20. Higher-Current Shunt Regulator
Figure 21. Crowbar
A. Rb should provide cathode current ≥1 mA to the TL1431.
V
(BATT)
In
Out
V
O
= 5 V
V
O
= 5 V, 1.5 A, 0.5%
V
(BATT)
LM317
R
b
8.2 kΩ
27.4 kΩ
0.1%
243 Ω
0.1%
Adjust
TL1431
TL1431
243 Ω
0.1%
27.4 kΩ
0.1%
Figure 22. Precision 5-V, 1.5-A, 0.5% Regulator
Figure 23. 5-V Precision Regulator
12 V
6.8 kΩ
V
CC
10 kΩ
5 V +0.5%
−
+
10 kΩ
TL1431
0.1%
X
TL598
Not
Used
10 kΩ
0.1%
Feedback
Figure 24. PWM Converter With 0.5% Reference
A. Select R3 and R4 to provide the desired LED intensity and cathode current ≥1 mA to the TL1431.
8
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TL1431-SP
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SLVSB44B –JULY 2012–REVISED SEPTEMBER 2013
R3
680 Ω
V
(BATT)
12 V
R1B
R4
2 kΩ
R1A
R2A
R
TL1431
TL1431
TL1431
R2B
On
C
Off
R1B
Low Limit + ǒ1 ) ǓVI(ref)
R2B
LED on When
Low Limit < V < High Limit
12 V
12 V * V
(BATT)
R1A
Delay + R C I
High Limit + ǒ1 ) ǓVI(ref)
I
(
)
R2A
I(ref)
Figure 25. Voltage Monitor
Figure 26. Delay Timer
R
CL
0.1%
V
(BATT)
I
O
V
(BATT)
I
O
R1
TL1431
TL1431
R
0.1%
S
V
I(ref)
I
+
) I
O
KA
R
CL
V
(BATT)
R1 +
V
I
I(ref)
+
O
I
ǒ Ǔ) I
O
R
KA
h
S
FE
Figure 27. Precision Current Limiter
Figure 28. Precision Constant-Current Sink
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PACKAGE OPTION ADDENDUM
www.ti.com
11-Sep-2020
PACKAGING INFORMATION
Orderable Device
Status Package Type Package Pins Package
Eco Plan
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
Samples
Drawing
Qty
(1)
(2)
(3)
(4/5)
(6)
5962-9962001VPA
5962R9962001VHA
5962R9962001VPA
TL1431U/EM
ACTIVE
CDIP
CFP
CDIP
CFP
JG
U
8
10
8
1
TBD
TBD
TBD
TBD
SNPB
N / A for Pkg Type
N / A for Pkg Type
N / A for Pkg Type
N / A for Pkg Type
-55 to 125
-55 to 125
-55 to 125
25 to 25
9962001VPA
TL1431M
ACTIVE
ACTIVE
1
Call TI
SNPB
Call TI
R9962001VHA
TL1431M
JG
U
1
R9962001VPA
TL1431M
PREVIEW
10
1
TL1431U/EM
EVAL ONLY
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of <=1000ppm threshold. Antimony trioxide based
flame retardants must also meet the <=1000ppm threshold requirement.
(3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
(4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
(5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation
of the previous line and the two combined represent the entire Device Marking for that device.
(6)
Lead finish/Ball material - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead finish/Ball material values may wrap to two
lines if the finish value exceeds the maximum column width.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
11-Sep-2020
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
OTHER QUALIFIED VERSIONS OF TL1431-SP :
Catalog: TL1431
•
Automotive: TL1431-Q1
•
Enhanced Product: TL1431-EP
•
Military: TL1431M
•
NOTE: Qualified Version Definitions:
Catalog - TI's standard catalog product
•
Automotive - Q100 devices qualified for high-reliability automotive applications targeting zero defects
•
Enhanced Product - Supports Defense, Aerospace and Medical Applications
•
Military - QML certified for Military and Defense Applications
•
Addendum-Page 2
PACKAGE OUTLINE
U0010A
CFP - 2.03 mm max height
S
C
A
L
E
1
.
4
0
0
CERAMIC FLATPACK
.27 MAX
GLASS
.005 MIN
TYP
.010 .002
1
PIN 1 ID
.045 MAX
TYP
10
8X .050 .005
.27 MAX
GLASS
5
6
10X .017 .002
+.019
.241
5X .32 .01
5X .32 .01
-.003
.005 .001
+.013
.067
-.012
.045
.026
4225582/A 01/2020
NOTES:
1. All linear dimensions are in inches. Any dimensions in parenthesis are for reference only. Dimensioning and tolerancing
per ASME Y14.5M.
2. This drawing is subject to change without notice.
www.ti.com
MECHANICAL DATA
MCER001A – JANUARY 1995 – REVISED JANUARY 1997
JG (R-GDIP-T8)
CERAMIC DUAL-IN-LINE
0.400 (10,16)
0.355 (9,00)
8
5
0.280 (7,11)
0.245 (6,22)
1
4
0.065 (1,65)
0.045 (1,14)
0.310 (7,87)
0.290 (7,37)
0.063 (1,60)
0.015 (0,38)
0.020 (0,51) MIN
0.200 (5,08) MAX
0.130 (3,30) MIN
Seating Plane
0.023 (0,58)
0.015 (0,38)
0°–15°
0.100 (2,54)
0.014 (0,36)
0.008 (0,20)
4040107/C 08/96
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. This package can be hermetically sealed with a ceramic lid using glass frit.
D. Index point is provided on cap for terminal identification.
E. Falls within MIL STD 1835 GDIP1-T8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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