LP PACKAGE
(TOPVIEW)
CATHODE
ANODE
REF
FK PACKAGE
(TOPVIEW)
3 2 1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
NC
NC
NC
ANODE
NC
NC
NC
NC
NC
NC
NC
CATHODE
NC
NC
NC REF
NC
NC
NC
NC
1
2
3
4
8
7
6
5
CATHODE
ANODE
ANODE
NC
REF
ANODE
ANODE
NC
D PACKAGE
(TOPVIEW)
NC – No internal connection
ANODE terminals are connected internally
.
1
2
3
4
8
7
6
5
CATHODE
NC
NC
NC
REF
NC
ANODE
NC
JG OR PW PACKAGE
(TOPVIEW)
NC – No internal connection
KTP PACKAGE
(TOPVIEW)
CATHODE
ANODE
REF
ANODE
TL1431
www.ti.com
SLVS062M –DECEMBER 1991–REVISED APRIL 2012
PRECISION PROGRAMMABLE REFERENCE
Check for Samples: TL1431
1FEATURES
2• 0.4% Initial Voltage Tolerance • Sink Current Capability…1 mA to 100 mA
• 0.2-ΩTypical Output Impedance • Low Reference Current (REF)
• Fast Turnon…500 ns • 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 (see Figure 16). 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 TL1431C is characterized for operation over the commercial temperature range of 0°C to 70°C. The
TL1431Q is characterized for operation over the full automotive temperature range of –40°C to 125°C. The
TL1431M is characterized for operation over the full military temperature range of –55°C to 125°C.
1Please 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.
2PowerFLEX is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date. Copyright © 1991–2012, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
+
−
CATHODE
ANODE
REF
Vref
REF
ANODE CATHODE
TL1431
SLVS062M –DECEMBER 1991–REVISED APRIL 2012
www.ti.com
ORDERING INFORMATION(1)
TAPACKAGE(2) ORDERABLE PART NUMBER TOP-SIDE MARKING
PowerFLEX™ – KTP Reel of 3000 TL1431CKTPR OBSOLETE
Tube of 75 TL1431CD
SOIC – D 1431C
Reel of 2500 TL1431CDR
Bulk of 1000 TL1431CLP
0°C to 70°C TO-226 / TO-92 – LP Reel of 2000 TL1431CLPR TL1431C
Ammo of 2000 TL1431CLPME3
Tube of 150 TL1431CPW
TSSOP – PW T1431
Reel of 2000 TL1431CPWR
Tube of 75 TL1431QD
SOIC – D TL1431QD
Reel of 2500 TL1431QDR
–40°C to 125°C Tube of 150 TL1431QPW
TSSOP – PW T1431QPW
Reel of 2000 TL1431QPWR
CDIP – JG Tube of 50 TL1431MJG TL1431MJG
–55°C to 125°C LCCC – FK Tube of 55 TL1431MFK TL1431MFK
(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.
(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
SYMBOL
FUNCTIONAL BLOCK DIAGRAM
2Submit Documentation Feedback Copyright © 1991–2012, Texas Instruments Incorporated
Product Folder Link(s): TL1431
CATHODE
REF
ANODE
800 Ω
2.4 kΩ
4 kΩ
20 pF
1 kΩ
7.2 kΩ
800 Ω
800 Ω
150 Ω
10 kΩ
3.28 kΩ
20 pF
1
8
2, 3, 6, 7
TL1431
www.ti.com
SLVS062M –DECEMBER 1991–REVISED APRIL 2012
EQUIVALENT SCHEMATIC
A. All component values are nominal.
B. Pin numbers shown are for the D package.
Absolute Maximum Ratings(1)
over operating free-air temperature range (unless otherwise noted) MIN MAX UNIT
VKA Cathode voltage(2) 37 V
IKA Continuous cathode current range –100 150 mA
II(ref) Reference input current range –0.05 10 mA
D package 97
θJA Package thermal impedance(3) (4) LP package 140 °C/W
PW package 149
FK package 5.61
θJC Package thermal impedance(5) (6) °C/W
JG package 14.5
TJOperating virtual junction temperature 150 °C
Lead temperature 1,6 mm (1/16 in) from case for 10 s 260 °C
Tstg Storage temperature range –65 150 °C
(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),θJA, and TA. The maximum allowable power dissipation at any allowable ambient
temperature is PD= (TJ(max) – TA)/θJA. Operating at the absolute maximum TJof 150°C can affect reliability.
(4) The package thermal impedance is calculated in accordance with JESD 51-7.
(5) 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 TJof 150°C can affect reliability.
(6) The package thermal impedance is calculated in accordance with MIL-STD-883.
Copyright © 1991–2012, Texas Instruments Incorporated Submit Documentation Feedback 3
Product Folder Link(s): TL1431
∆I
∆V
|z'| =
R2
R1
|z |
KA
(
1 +
(
∆IKA
∆VKA
|z | =
KA
where:
∆TAis the rated operating temperature range of the device.
MaxVI(ref)
MinVI(ref)
˙TA
VI(dev)
αVI(ref) ppm
°C
VI(dev)
VI(ref)at 25°C× 106
TA
(
(
=
(
(
(3) The output impedance is defined as:
, which is approximately equal to .
TL1431
SLVS062M –DECEMBER 1991–REVISED APRIL 2012
www.ti.com
Recommended Operating Conditions MIN MAX UNIT
VKA Cathode voltage VI(ref) 36 V
IKA Cathode current 1 100 mA
TL1431C 0 70
TAOperating free-air temperature TL1431Q –40 125 °C
TL1431M –55 125
Electrical Characteristics
at specified free-air temperature, IKA = 10 mA (unless otherwise noted) TL1431C
TEST
PARAMETER TEST CONDITIONS TA(1) UNIT
CIRCUIT MIN TYP MAX
25°C 2490 2500 2510
VI(ref) Reference input voltage VKA = VI(ref) Figure 1 mV
Full range 2480 2520
Deviation of reference input
VI(dev) voltage over full temperature VKA = VI(ref) Full range Figure 1 4 20 mV
range(2)
Ratio of change in reference
input voltage to the change in ΔVKA = 3 V to 36 V Full range Figure 2 –1.1 –2 mV/V
cathode voltage 25°C 1.5 2.5
II(ref) Reference input current R1 = 10 kΩ, R2 = ∞Figure 2 μA
Full range 3
Deviation of reference input
II(dev) current over full temperature R1 = 10 kΩ, R2 = ∞Full range Figure 2 0.2 1.2 μA
range(2)
Minimum cathode current for
Imin VKA = VI(ref) 25°C Figure 1 0.45 1 mA
regulation 25°C 0.18 0.5
Ioff Off-state cathode current VKA = 36 V, VI(ref) = 0 Figure 3 μA
Full range 2
VKA = VI(ref), f ≤1 kHz,
|zKA| Output impedance(3) 25°C Figure 1 0.2 0.4 Ω
IKA = 1 mA to 100 mA
(1) Full range is 0°C to 70°C for C-suffix devices.
(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:
αVI(ref) is positive or negative, depending on whether minimum VI(ref) or maximum VI(ref), respectively, occurs at the lower temperature.
When the device is operating with two external resistors (see Figure 2), the total dynamic impedance of the circuit is given by:
4Submit Documentation Feedback Copyright © 1991–2012, Texas Instruments Incorporated
Product Folder Link(s): TL1431
∆I
∆V
|z'| =
R2
R1
|z |
KA
(
1 +
(
∆IKA
∆VKA
|z | =
KA
where:
∆TAis the rated operating temperature range of the device.
MaxVI(ref)
MinVI(ref)
˙TA
VI(dev)
αVI(ref) ppm
°C
VI(dev)
VI(ref)at 25°C× 106
TA
(
(
=
(
(
(4) The output impedance is defined as:
, which is approximately equal to .
TL1431
www.ti.com
SLVS062M –DECEMBER 1991–REVISED APRIL 2012
Electrical Characteristics
at specified free-air temperature, IKA = 10 mA (unless otherwise noted) TL1431Q TL1431M
TEST
PARAMETER TEST CONDITIONS TA(1) UNIT
CIRCUIT MIN TYP MAX MIN TYP MAX
25°C 2490 2500 2510 2475 2500 2540
VI(ref) Reference input voltage VKA = VI(ref) Figure 1 mV
Full 2470 2530 2460 2550
range
Deviation of reference Full
VI(dev) input voltage over full VKA = VI(ref) Figure 1 17 55 17 55(3) mV
range
temperature range(2)
Ratio of change in
reference input voltage Full
ΔVKA = 3 V to 36 V Figure 2 –1.1 –2 –1.1 –2 mV/V
to the change in range
cathode voltage 25°C 1.5 2.5 1.5 2.5
II(ref) Reference input current R1 = 10 kΩ, R2 = ∞Figure 2 μA
Full 4 5
range
Deviation of reference Full
II(dev) input current over full R1 = 10 kΩ, R2 = ∞Figure 2 0.5 2 0.5 3(3) μA
range
temperature range(2)
Minimum cathode
Imin VKA = VI(ref) 25°C Figure 1 0.45 1 0.45 1 mA
current for regulation 25°C 0.18 0.5 0.18 0.5
Off-state cathode
Ioff VKA = 36 V, VI(ref) = 0 Figure 3 μA
Full
current 2 2
range
VKA = VI(ref), f ≤1 kHz,
|zKA| Output impedance(4) 25°C Figure 1 0.2 0.4 0.2 0.4 Ω
IKA = 1 mA to 100 mA
(1) Full range is –40°C to 125°C for Q-suffix devices and –55°C to 125°C for M-suffix devices.
(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:
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.
When the device is operating with two external resistors (see Figure 2), the total dynamic impedance of the circuit is given by:
Copyright © 1991–2012, Texas Instruments Incorporated Submit Documentation Feedback 5
Product Folder Link(s): TL1431
Input VKA
Ioff
Input VKA
IKA
VI(ref)
Input VKA
IKA
VI(ref)
II(ref)
R1
R2 VKA +VI(ref) ǒ1)R1
R2Ǔ)II(ref) R1
TL1431
SLVS062M –DECEMBER 1991–REVISED APRIL 2012
www.ti.com
PARAMETER MEASUREMENT INFORMATION
Figure 1. Test Circuit for V(KA) = Vref Figure 2. Test Circuit for V(KA) > Vref
Figure 3. Test Circuit for Ioff
TYPICAL CHARACTERISTICS
Data at high and low temperatures are applicable only within the recommended operating free-air temperature
ranges of the various devices.
Table of Graphs
GRAPH FIGURE
Reference voltage vs Free-air temperature Figure 4
Reference current vs Fire-air temperature Figure 5
Cathode current vs Cathode voltage Figure 6,Figure 7
Off-state cathode current vs Free-air temperature Figure 8
Ratio of delta reference voltage to delta cathode voltage vs Free-air temperature Figure 9
Equivalent input-noise voltage vs Frequency Figure 10
Equivalent input-noise voltage over a 10-second period Figure 11
Small-signal voltage amplification vs Frequency Figure 12
Reference impedance vs Frequency Figure 13
Pulse response Figure 14
Stability boundary conditions Figure 15
6Submit Documentation Feedback Copyright © 1991–2012, Texas Instruments Incorporated
Product Folder Link(s): TL1431
200
0
− 200 −1 0 1 2 3 4
400
600
CATHODE CURRENT
vs
CATHODE VOLTAGE
800
VKA − Cathode Voltage − V
VKA = VI(ref)
TA = 25°C
−2
− Cathode Current −IKA Aµ
0
− 50
− 100
− 150− 3 − 2 − 1
50
100
CATHODE CURRENT
vs
CATHODE VOLTAGE
150
0 1 2 3
VKA − Cathode Voltage − V
VKA = VI(ref)
TA = 25°C
− Cathode Current − mAIKA
2.5
2.49
2.48
− 50 − 25 025 50
2.51
REFERENCE VOLTAGE
vs
FREE-AIR TEMPERATURE
2.52
75 100 125
VI(ref) = VKA
IKA = 10 mA
TA − Free-Air Temperature − °C
− Reference Voltage − VVI(ref)
REFERENCE CURRENT
vs
FREE-AIR TEMPERATURE
− 50 − 25 0 25 50 75 100 125
0
0.5
1
1.5
2
2.5
TA − Free-Air Temperature − °C
IKA = 10 mA
R1 = 10 kΩ
R2 = ∞
− Reference Current −
II(ref) Aµ
TL1431
www.ti.com
SLVS062M –DECEMBER 1991–REVISED APRIL 2012
Figure 4. Figure 5.
Figure 6. Figure 7.
Copyright © 1991–2012, Texas Instruments Incorporated Submit Documentation Feedback 7
Product Folder Link(s): TL1431
180
140
120
10010 100 1 k
220
240
f − Frequency − Hz
EQUIVALENT INPUT -NOISE VOLTAGE
vs
FREQUENCY
260
10 k 100 k
200
160
IO = 10 mA
TA = 25°C
− Equivalent Input-Noise Voltage − nV/ HzVn
−1.15
−1.25
−1.35
−1.45 − 25 0
−1.05
RATIO OF DELTA REFERENCE VOLTAGE TO
DELTA CATHODE VOLTAGE
vs
FREE-AIR TEMPERATURE
25 50 75 100 125
TA − Free-Air Temperature − °C
VKA = 3 V to 36 V
−0.85
−0.95
−50
− mV/V∆VI(ref) /∆VKA
0.15
0.1
0.05
0− 25 0 25 50 75
0.2
0.25
OFF-STATE CATHODE CURRENT
vs
FREE-AIR TEMPERATURE
0.3
100 125
0.35
0.4
TA − Free-Air Temperature − °C
VKA = 36 V
VI(ref) = 0
−50
I − Off-State Cathode Current − Aµ
KA(off)
TL1431
SLVS062M –DECEMBER 1991–REVISED APRIL 2012
www.ti.com
Figure 8. Figure 9.
Figure 10.
8Submit Documentation Feedback Copyright © 1991–2012, Texas Instruments Incorporated
Product Folder Link(s): TL1431
− 1
− 2
− 4
− 5
− 6
3
− 3
0 2 4 6
1
0
2
t − Time − s
EQUIVALENT INPUT-NOISE VOLTAGE
OVER A 10-SECOND PERIOD
4
8 10
5
6
+
−
+
−
TEST CIRCUIT FOR 0.1-Hz TO 10-Hz EQUIVALENT INPUT-NOISE VOLTAGE
f = 0.1 to 10 Hz
IKA = 10 mA
TA= 25°C
− Equivalent Input-Noise V
oltage −
VnmV
19.1 V
1 kW
910 W
500 mF
2000 mFVCC VCC
VEE VEE
TL1431
(DUT)
820 W
16 W
160 kW
0.1 mF
16 W16 W
1mF
1mF
33 kW
33 kW
2.2 mF
TLE2027
AV= 2 V/V 1 MW
CRO
TLE2027
AV= 10 V/mV
TL1431
www.ti.com
SLVS062M –DECEMBER 1991–REVISED APRIL 2012
Figure 11.
Copyright © 1991–2012, Texas Instruments Incorporated Submit Documentation Feedback 9
Product Folder Link(s): TL1431
0.1
1 k 10 k 100 k 1 M 10 M
1
f − Frequency − Hz
REFERENCE IMPEDANCE
vs
FREQUENCY
10
100
TEST CIRCUIT FOR REFERENCE IMPEDANCE
1 kW
50 W
I(K)
Output
GND
IKA = 1 mA to 100 mA
TA= 25°C
−
+
|zka | − Reference Impedance − O
|zKA W
30
0
1 k 10 k 100 k
f − Frequency − Hz
60
1 M 10 M
40
50
20
10 TEST CIRCUIT FOR VOLTAGE AMPLIFICATION
IKA = 10 mA
TA= 25°C
− Small-Signal V
oltage Amplification − dB
AV
SMALL-SIGNAL VOLTAGE AMPLIFICATION
vs
FREQUENCY
9mF
15 kW
8.25 kW
I(K)
230 W
Output
GND
+
−
TL1431
SLVS062M –DECEMBER 1991–REVISED APRIL 2012
www.ti.com
Figure 12.
Figure 13.
10 Submit Documentation Feedback Copyright © 1991–2012, Texas Instruments Incorporated
Product Folder Link(s): TL1431
STABILITY BOUNDARY CONDITIONS
50
40
10
0
0.001 0.01 0.1 1
70
90
100
10
30
80
60
20
TEST CIRCUIT FOR CURVE A
TEST CIRCUIT FOR CURVES B, C, AND D
CL− Load Capacitance − mF
A-VKA = VI(ref)
B-VKA = 5 V
C-VKA = 10 V
D-VKA = 15 V
Stable
Stable
A
BC
D
IKA = 10 mA
TA= 25°CCL
CL
150 W
150 W
IKA
IKA
VBATT
VBATT
R1 =
10 kW
R2
+
−
+
−
VI
VI
− Cathode Current − mA
IKA
3
2
1
0
0 1 2 3 4
4
5
PULSE RESPONSE
6
5 6 7
TEST CIRCUIT FOR PULSE RESPONSE
TA= 25°C
Input
Output
Input and Output Voltages − V
t − Time − ms
Pulse
Generator
f = 100 kHz
50 W
220 W
Output
GND
VI
TL1431
www.ti.com
SLVS062M –DECEMBER 1991–REVISED APRIL 2012
Figure 14.
A. The areas under the curves represent conditions that may cause the device to oscillate. For curves B, C, and D, R2,
and V+ are adjusted to establish the initial VKA and IKA conditions, with CL= 0. VBATT and CLthen are adjusted to
determine the ranges of stability.
Figure 15.
Copyright © 1991–2012, Texas Instruments Incorporated Submit Documentation Feedback 11
Product Folder Link(s): TL1431
V(BATT)
VO
Input
Von ≈ 2 V
Voff ≈ V(BATT)
TL1431
VIT = 2.5 V
GND
V(BATT) R
R1
0.1%
R2
0.1%
VI(ref)
VO
TL1431
VO+ǒ1)R1
R2ǓVI(ref)
TL1431
SLVS062M –DECEMBER 1991–REVISED APRIL 2012
www.ti.com
APPLICATION INFORMATION
Table 1. Table of Application Circuits
APPLICATION FIGURE
Shunt regulator Figure 16
Single-supply comparator with temperature-compensated threshold Figure 17
Precision high-current series regulator Figure 18
Output control of a three-terminal fixed regulator Figure 19
Higher-current shunt regulator Figure 20
Crowbar Figure 21
Precision 5-V, 1.5-A, 0.5% regulator Figure 22
5-V precision regulator Figure 23
PWM converter with 0.5% reference Figure 24
Voltage monitor Figure 25
Delay timer Figure 26
Precision current limiter Figure 27
Precision constant-current sink Figure 28
A. R should provide cathode current ≥1 mA to the TL1431 at minimum V(BATT).
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).
12 Submit Documentation Feedback Copyright © 1991–2012, Texas Instruments Incorporated
Product Folder Link(s): TL1431
V(BATT) VO = 5 V
Rb
TL1431
27.4 kΩ
0.1%
27.4 kΩ
0.1%
LM317
In Out
V(BATT)
8.2 kΩ
TL1431 Adjust 243 Ω
0.1%
243 Ω
0.1%
VO = 5 V, 1.5 A, 0.5%
V(BATT)
TL1431
VO+ǒ1)R1
R2ǓVI(ref)
R1
R2
RVO
V(BATT) VO
TL1431
R1
R2
C
Vtrip +ǒ1)R1
R2ǓVI(ref)
V(BATT) In
Out VO
TL1431
Common
µA7805
R1
R2
V+ǒ1)R1
R2ǓVI(ref)
Min V = VI(ref) + 5 V
V(BATT)
R
30 Ω
TL1431
2N2222
2N2222
0.01 µF4.7 kΩ
R1
0.1%
R2
0.1%
VO
VO+ǒ1)R1
R2ǓVI(ref)
TL1431
www.ti.com
SLVS062M –DECEMBER 1991–REVISED APRIL 2012
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.
Figure 20. Higher-Current Shunt Regulator Figure 21. Crowbar
A. Rbshould provide cathode current ≥1 mA to the TL1431.
Figure 22. Precision 5-V, 1.5-A, 0.5% Regulator Figure 23. 5-V Precision Regulator
Copyright © 1991–2012, Texas Instruments Incorporated Submit Documentation Feedback 13
Product Folder Link(s): TL1431
V(BATT)
R1
RCL 0.1%
TL1431
IO+
VI(ref)
RCL )IKA
IO
R1 +
V(BATT)
ǒIO
hFEǓ)IKA
V(BATT)
TL1431
IO
RS
0.1%
IO+
VI(ref)
RS
TL1431
12 V 680 Ω
2 kΩ
R
Off On C
Delay +R C II12 V
(12 V)*VI(ref)
V(BATT) R3
R4
R1A
R2A
R1B
R2B
TL1431
Low Limit +ǒ1)R1B
R2BǓVI(ref)
High Limit +ǒ1)R1A
R2AǓVI(ref)
LED on When
Low Limit < V(BATT) < High Limit
TL1431
+
−
TL1431
12 V
6.8 kΩ
5 V +0.5% 10 kΩ
10 kΩ
0.1%
10 kΩ
0.1%
VCC
X
Not
Used TL598
Feedback
TL1431
SLVS062M –DECEMBER 1991–REVISED APRIL 2012
www.ti.com
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.
Figure 25. Voltage Monitor Figure 26. Delay Timer
Figure 27. Precision Current Limiter Figure 28. Precision Constant-Current Sink
14 Submit Documentation Feedback Copyright © 1991–2012, Texas Instruments Incorporated
Product Folder Link(s): TL1431
TL1431
www.ti.com
SLVS062M –DECEMBER 1991–REVISED APRIL 2012
REVISION HISTORY
Changes from Revision October 2007 (N) to Revision M Page
• Added Ammo option to the LP package in the ORDERING INFORMATION table. ............................................................ 2
Copyright © 1991–2012, Texas Instruments Incorporated Submit Documentation Feedback 15
Product Folder Link(s): TL1431
PACKAGE OPTION ADDENDUM
www.ti.com 17-Aug-2012
Addendum-Page 1
PACKAGING INFORMATION
Orderable Device Status (1) Package Type Package
Drawing Pins Package Qty Eco Plan (2) Lead/
Ball Finish MSL Peak Temp (3) Samples
(Requires Login)
5962-9962001Q2A ACTIVE LCCC FK 20 1 TBD Call TI Call TI
5962-9962001QPA ACTIVE CDIP JG 8 1 TBD Call TI Call TI
TL1431CD ACTIVE SOIC D 8 75 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TL1431CDE4 ACTIVE SOIC D 8 75 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TL1431CDG4 ACTIVE SOIC D 8 75 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TL1431CDR ACTIVE SOIC D 8 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TL1431CDRE4 ACTIVE SOIC D 8 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TL1431CDRG4 ACTIVE SOIC D 8 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TL1431CKTPR OBSOLETE PFM KTP 2 TBD Call TI Call TI
TL1431CLP ACTIVE TO-92 LP 3 1000 Pb-Free (RoHS) CU SN N / A for Pkg Type
TL1431CLPE3 ACTIVE TO-92 LP 3 1000 Pb-Free (RoHS) CU SN N / A for Pkg Type
TL1431CLPM OBSOLETE TO-92 LP 3 TBD Call TI Call TI
TL1431CLPME3 ACTIVE TO-92 LP 3 2000 Pb-Free (RoHS) CU SN N / A for Pkg Type
TL1431CLPR ACTIVE TO-92 LP 3 2000 Pb-Free (RoHS) CU SN N / A for Pkg Type
TL1431CLPRE3 ACTIVE TO-92 LP 3 2000 Pb-Free (RoHS) CU SN N / A for Pkg Type
TL1431CPW ACTIVE TSSOP PW 8 150 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TL1431CPWE4 ACTIVE TSSOP PW 8 150 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TL1431CPWG4 ACTIVE TSSOP PW 8 150 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TL1431CPWR ACTIVE TSSOP PW 8 2000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TL1431CPWRE4 ACTIVE TSSOP PW 8 2000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TL1431CPWRG4 ACTIVE TSSOP PW 8 2000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
PACKAGE OPTION ADDENDUM
www.ti.com 17-Aug-2012
Addendum-Page 2
Orderable Device Status (1) Package Type Package
Drawing Pins Package Qty Eco Plan (2) Lead/
Ball Finish MSL Peak Temp (3) Samples
(Requires Login)
TL1431MFK ACTIVE LCCC FK 20 1 TBD POST-PLATE N / A for Pkg Type
TL1431MFKB ACTIVE LCCC FK 20 1 TBD POST-PLATE N / A for Pkg Type
TL1431MJG ACTIVE CDIP JG 8 1 TBD A42 N / A for Pkg Type
TL1431MJGB ACTIVE CDIP JG 8 1 TBD A42 N / A for Pkg Type
TL1431QD ACTIVE SOIC D 8 75 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TL1431QDG4 ACTIVE SOIC D 8 75 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TL1431QDR ACTIVE SOIC D 8 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TL1431QDRG4 ACTIVE SOIC D 8 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TL1431QLP OBSOLETE TO-92 LP 3 TBD Call TI Call TI
TL1431QLPR OBSOLETE TO-92 LP 3 TBD Call TI Call TI
TL1431QPWR ACTIVE TSSOP PW 8 TBD Call TI Call TI
TL1431QPWRG4 ACTIVE TSSOP PW 8 2000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
(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) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
PACKAGE OPTION ADDENDUM
www.ti.com 17-Aug-2012
Addendum-Page 3
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
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, TL1431M :
•Catalog: TL1431
•Automotive: TL1431-Q1, TL1431-Q1
•Enhanced Product: TL1431-EP, TL1431-EP
•Military: TL1431M
•Space: TL1431-SP, TL1431-SP
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
•Space - Radiation tolerant, ceramic packaging and qualified for use in Space-based application
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device Package
Type Package
Drawing Pins SPQ Reel
Diameter
(mm)
Reel
Width
W1 (mm)
A0
(mm) B0
(mm) K0
(mm) P1
(mm) W
(mm) Pin1
Quadrant
TL1431CDR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1
TL1431CPWR TSSOP PW 8 2000 330.0 12.4 7.0 3.6 1.6 8.0 12.0 Q1
TL1431CPWRG4 TSSOP PW 8 2000 330.0 12.4 7.0 3.6 1.6 8.0 12.0 Q1
TL1431QDR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1
PACKAGE MATERIALS INFORMATION
www.ti.com 17-Aug-2012
Pack Materials-Page 1
*All dimensions are nominal
Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm)
TL1431CDR SOIC D 8 2500 340.5 338.1 20.6
TL1431CPWR TSSOP PW 8 2000 367.0 367.0 35.0
TL1431CPWRG4 TSSOP PW 8 2000 367.0 367.0 35.0
TL1431QDR SOIC D 8 2500 340.5 338.1 20.6
PACKAGE MATERIALS INFORMATION
www.ti.com 17-Aug-2012
Pack Materials-Page 2
MECHANICAL DATA
MCER001A – JANUARY 1995 – REVISED JANUAR Y 1997
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
JG (R-GDIP-T8) CERAMIC DUAL-IN-LINE
0.310 (7,87)
0.290 (7,37)
0.014 (0,36)
0.008 (0,20)
Seating Plane
4040107/C 08/96
5
4
0.065 (1,65)
0.045 (1,14)
8
1
0.020 (0,51) MIN
0.400 (10,16)
0.355 (9,00)
0.015 (0,38)
0.023 (0,58)
0.063 (1,60)
0.015 (0,38)
0.200 (5,08) MAX
0.130 (3,30) MIN
0.245 (6,22)
0.280 (7,11)
0.100 (2,54)
0°–15°
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
MECHANICAL DATA
MPSF001F – JANUARY 1996 – REVISED JANUARY 2002
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
KTP (R-PSFM-G2) PowerFLEX PLASTIC FLANGE-MOUNT PACKAGE
0.228 (5,79)
0.218 (5,54)
0.233 (5,91)
0.243 (6,17)
0.001 (0,02)
0.005 (0,13)
0.070 (1,78)
Seating Plane
0.080 (2,03)
0.010 (0,25) NOM
Gage Plane
0.010 (0,25)
4073388/M 01/02
0.037 (0,94)
0.047 (1,19)
0.247 (6,27)
0.237 (6,02)
NOM
0.215 (5,46)
0.371 (9,42)
0.381 (9,68)
0.090 (2,29)
0.100 (2,54)
0.287 (7,29)
0.031 (0,79)
0.032 (0,81) MAX
0.277 (7,03)
0.025 (0,63)
0.130 (3,30) NOM
0.090 (2,29)
0.180 (4,57) M
0.010 (0,25)
0.004 (0,10)
2°–ā6°
0.040 (1,02)
0.050 (1,27)
Thermal Tab
(See Note C)
0.010 (0,25) NOM
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. The center lead is in electrical contact with the thermal tab.
D. Dimensions do not include mold protrusions, not to exceed 0.006 (0,15).
E. Falls within JEDEC TO-252 variation AC.
PowerFLEX is a trademark of Texas Instruments.
MECHANICAL DATA
MSOT002A – OCTOBER 1994 – REVISED NOVEMBER 2001
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
LP (O-PBCY-W3) PLASTIC CYLINDRICAL PACKAGE
4040001-2/C 10/01
STRAIGHT LEAD OPTION
0.016 (0,41)
0.014 (0,35)
0.157 (4,00) MAX
FORMED LEAD OPTION
0.104 (2,65)
0.210 (5,34)
0.170 (4,32)
0.050 (1,27)
0.016 (0,41)
0.022 (0,56)
0.500 (12,70) MIN
Seating
Plane
0.175 (4,44)
0.205 (5,21) 0.165 (4,19)
0.125 (3,17)
DIA
D
C
0.105 (2,67)
0.095 (2,41)
0.135 (3,43) MIN
0.080 (2,03)
0.055 (1,40)
0.045 (1,14)
1
0.105 (2,67)
23
0.080 (2,03)
0.105 (2,67)
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. Lead dimensions are not controlled within this area
D. FAlls within JEDEC TO -226 Variation AA (TO-226 replaces TO-92)
E. Shipping Method:
Straight lead option available in bulk pack only.
Formed lead option available in tape & reel or ammo pack.
MECHANICAL DATA
MSOT002A – OCTOBER 1994 – REVISED NOVEMBER 2001
2POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
LP (O-PBCY-W3) PLASTIC CYLINDRICAL PACKAGE
4040001-3/C 10/01
0.094 (2,40)
0.114 (2,90)
0.460 (11,70)
0.539 (13,70)
TAPE & REEL
0.335 (8,50)
0.384 (9,75)
0.020 (0,50) MIN
0.217 (5,50)
0.748 (19,00) 0.748 (19,00)
0.689 (17,50)
0.098 (2,50)
0.433 (11,00)
0.335 (8,50)
0.610 (15,50)
0.650 (16,50)
1.260 (32,00)
0.905 (23,00)
0.234 (5,95)
0.266 (6,75)
0.512 (13,00)
0.488 (12,40)
0.114 (2,90)
0.094 (2,40) 0.146 (3,70)
0.169 (4,30) DIA
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. Tape and Reel information for the Format Lead Option package.
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