TL431
TL432
Automotive adjustable voltage reference
Datasheet - production data
Applications
• Power supply
• Industrial
• Automotive
Z
TO-92
(Plastic package)
L
SOT23-5
L
SOT23-3
Description
C
SOT323-6
The TL431 and TL432 are adjustable shunt
voltage references with guaranteed temperature
stability over the entire operating temperature
range. The device temperature range is extended
for the automotive version from -40 °C up to
+125 °C. The output voltage can be set to any
value between 2.5 and 36 V with two external
resistors. The TL431 and TL432 operate with a
wide current range from 1 to 100 mA with a typical
dynamic impedance of 0.22 Ω.
D
SO-8
(Batwing plastic micropackage)
Features
• AEC-Q100 qualified
• Adjustable output voltage: 2.5 to
36 V
• Sink current capability: 1 to 100 mA
• Typical output impedance: 0.22 Ω
• 0.5% voltage precision only on the TL431B
version
• 1% and 2% voltage precision
• Automotive temp. range -40 °C to +125 °C
September 2022
This is information on a product in full production.
DocID4467 Rev 17
1/22
www.st.com
Contents
TL431, TL432
Contents
1
Schematic diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2
Absolute maximum ratings and operating conditions . . . . . . . . . . . . . 4
3
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Reference input voltage deviation overtemperature range . . . . . . . . . . . . . . . . . . . 8
4
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.1
SO-8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.2
TO-92 ammopack and tape and reel package information . . . . . . . . . . . 14
4.3
TO-92 (bulk) package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.4
SOT23-3 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.5
SOT23-5 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.6
SOT323-6 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5
Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2/22
DocID4467 Rev 17
TL431, TL432
1
Schematic diagrams
Schematic diagrams
Figure 1. TO-92 pin connections (top view)
Figure 2. SO-8 batwing pin connections (top view)
SO8
Cathode 1
8 Ref
Anode 2
7 Anode
3
6
NC 4
5 NC
Figure 3. SOT23-5 and SOT23-3 pin connections (top view)
SOT23-5
NC
1
NC
2
Cathode
3
SOT23-3
5 Anode
Cathode 1
4 Ref
Ref
2
3 Anode
TL431
TL431
TL432
Figure 4. SOT323-6 pin connections (top view)
Figure 5. TL431 and TL432 block diagram
Cathode
Ref
Vref
Anode
DocID4467 Rev 17
3/22
22
Absolute maximum ratings and operating conditions
2
TL431, TL432
Absolute maximum ratings and operating conditions
Table 1. Absolute maximum ratings
Symbol
VKA
Parameter
Cathode to anode voltage
Value
Unit
37
V
Ik
Continuous cathode current range
-100 to +150
mA
Iref
Reference input current range
-0.05 to +10
mA
Rthjc
Thermal resistance junction to case
TO-92
SO-8 batwing
SOT23-3L
SOT23-5L
SOT323-6L
57
30
136
67
110
Rthja
Thermal resistance junction to ambient
TO-92
SO-8 batwing
SOT23-3L
SOT23-5L
SOT323-6L
200
85
248
157
221
Tstg
Storage temperature range
TJ
Junction temperature
ESD
TL431IY, TL431AIY-T: HBM (human body model)
TL431-TL432: HBM (human body model)
MM: machine model(2)
CDM: charged device model(3)
(1)
°C/W
°C/W
-65 to +150
°C
150
°C
3000
2000
200
1500
V
1. Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a
1.5 kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations
while the other pins are floating.
2. Machine model: a 200 pF capacitor is charged to the specified voltage, then discharged directly between
two pins of the device with no external series resistor (internal resistor < 5 Ω). This is done for all couples of
connected pin combinations while the other pins are floating.
3. Charged device model: all pins and the package are charged together to the specified voltage and then
discharged directly to the ground through only one pin. This is done for all pins.
Table 2. Operating conditions
Symbol
VKA
Ik
Toper
4/22
Parameter
Value
Unit
Cathode to anode voltage
Vref to 36
V
Cathode current
1 to 100
mA
0 to +70
-40 to +105
-40 to +125
-40 to +125
°C
Operating free-air temperature range
TL431C/AC
TL431I/AI - TL432I/AI
TL431B
TL431IY/AIY
DocID4467 Rev 17
TL431, TL432
3
Electrical characteristics
Electrical characteristics
Table 3. TL431C (Tamb = 25 °C unless otherwise specified)
TL431C
Symbol
Unit
Min.
Vref
∆Vref
∆Vref
-----------∆Vka
Iref
∆Iref
TL431AC
Parameter
Reference input voltage
VKA = Vref, Ik = 10 mA, Tamb = 25 °C
Tmin ≤ Tamb ≤ Tmax
Max.
Min.
Typ.
Max.
2.44 2.495 2.55 2.47 2.495 2.52
2.423
2.567 2.453
2.537
Reference input voltage deviation overtemperature
range (1)
VKA = Vref, Ik = 10 mA, Tmin ≤ Tamb ≤ Tmax
Ratio of change in reference input voltage to change
in cathode to anode voltage
Ik = 10 mA - ∆VKA = 10 V to Vref
∆VKA = 36 V to 10 V
Typ.
mV
-
3
17
-2.7
-2
-1.4
-1
-
1.8
-
Reference input current
Ik = 10 mA, R1 = 10 kΩ, R2 = ∞
Tamb = 25 °C
Tmin ≤ Tamb ≤ Tmax
Reference input current deviation overtemperature
range
Ik = 10 mA, R1 = 10 kΩ, R2 =∞
Tmin ≤ Tamb ≤ Tmax
-
3
15
-
-2.7
-2
-1.4
-1
-
4
5.2
-
1.8
-
4
5.2
mV/V
µA
µA
-
0.4
1.2
0.5
1
-
0.4
1.2
0.5
0.6
Imin
Minimum cathode current for regulation
VKA = Vref
-
Ioff
Off-state cathode current
-
2.6
1000
-
2.6
1000
Dynamic impedance(2)
VKA = Vref, ∆ Ik = 1 to 100 mA, f ≤ 1 kHZ
-
0.22
0.5
-
0.22
0.5
ZKA
V
-
mA
nA
Ω
1. See definition of Section : Reference input voltage deviation overtemperature range.
∆V KA
2. The dynamic impedance is defined as |ZKA| = ---------------
∆I k
DocID4467 Rev 17
5/22
22
Electrical characteristics
TL431, TL432
Table 4. TL431B, TL432B (Tamb = 25 °C unless otherwise specified)
TL431B, TL432B
Symbol
Vref
∆Vref
∆Vref
-----------∆Vka
Iref
∆Iref
Parameter
Reference input voltage
VKA = Vref, Ik = 10 mA, Tamb = 25 °C
Tmin ≤ Tamb ≤ Tmax
Reference input voltage deviation overtemperature range (1)
VKA = Vref, Ik = 10 mA, Tmin ≤ Tamb ≤ Tmax
Ratio of change in reference input voltage to change in cathode to
anode voltage
Ik = 10 mA - ∆VKA = 10 V to Vref
∆VKA = 36 V to 10 V
Reference input current
Ik = 10 mA, R1 = 10 kΩ, R2 = ∞
Tamb = 25 °C
Tmin ≤ Tamb ≤ Tmax
Reference input current deviation overtemperature range
Ik = 10 mA, R1 = 10 kΩ, R2 =∞
Tmin ≤ Tamb ≤ Tmax
Typ.
Max.
2.483
2.453
2.495
-
2.507
2.537
-
7
30
-2.7
-2
-1.4
-1
-
-
1.8
-
4
6.5
-
0.8
2.5
0.45
0.6
-
Ioff
Off-state cathode current
-
180
500
-
0.22
0.5
(2)
1. See definition of Section : Reference input voltage deviation overtemperature range.
∆V KA
2. The dynamic impedance is defined as |ZKA| = ---------------
∆I k
DocID4467 Rev 17
mV/V
µA
µA
Minimum cathode current for regulation
VKA = Vref
Dynamic impedance
VKA = Vref, ∆ Ik = 1 to 100 mA, f ≤ 1 kHZ
V
mV
Imin
ZKA
6/22
Unit
Min.
mA
nA
Ω
TL431, TL432
Electrical characteristics
Table 5. TL431I/TL432I (Tamb = 25 °C unless otherwise specified)
TL431I/TL432I
Symbol
Unit
Min.
Vref
Reference input voltage
VKA = Vref, Ik = 10 mA, Tamb = 25 °C
Tmin ≤ Tamb ≤ Tmax
∆Vref
Reference input voltage deviation overtemperature
range (1)
VKA = Vref, Ik =10 mA, Tmin≤ Tamb≤ Tmax
∆Vref
-----------∆Vka
Ratio of change in reference input voltage to change
in cathode to anode voltage
Ik = 10 mA, ∆VKA = 10 V to Vref
∆VKA = 36 V to 10 V
Iref
∆Iref
TL431AI/TL432AI
Parameter
Typ.
Max.
2.44 2.495 2.55
2.41
2.58
Min.
Typ.
Max.
2.47 2.495 2.52
2.44
2.55
V
-
7
30
-
7
30
mV
-2.7
-2
-1.4
-1
-
-2.7
-2
-1.4
-1
-
mV/V
-
1.8
-
4
6.5
-
1.8
-
4
6.5
µA
-
0.8
2.5
-
0.8
1.2
µA
Reference input current
Ik = 10 mA, R1 = 10 kΩ, R2 = ∞
Tamb = 25 °C
Tmin ≤ Tamb ≤ Tmax
Reference input current deviation overtemperature
range
Ik = 10 mA, R1 = 10 kΩ, R2 = ∞
Tmin ≤ Tamb ≤ Tmax
Imin
Minimum cathode current for regulation
VKA = Vref
-
0.5
1
-
0.5
0.7
mA
Ioff
Off-state cathode current
-
2.6
1000
-
2.6
1000
nA
-
0.22
0.5
-
0.22
0.5
Ω
ZKA
(2)
Dynamic impedance
VKA = Vref, ∆ Ik = 1 to 100 mA, f ≤ 1 kHZ
1. See definition of Section : Reference input voltage deviation overtemperature range below.
∆V KA
2. The dynamic impedance is defined as |ZKA| = ---------------
∆I k
DocID4467 Rev 17
7/22
22
Electrical characteristics
TL431, TL432
Table 6. TL431IY (Tamb = 25 °C unless otherwise specified)
TL431IY
Symbol
Unit
Min.
Vref
∆Vref
∆Vref
-----------∆Vka
Iref
∆Iref
TL431AIY
Parameter
Reference input voltage
VKA = Vref, Ik = 10 mA
Tmin ≤ Tamb ≤ Tmax
Typ.
Max.
2.44 2.495 2.55
2.41
2.58
Reference input voltage deviation overtemperature
range(1)
VKA = Vref, Ik = 10 mA, Tmin≤ Tamb ≤ Tmax
Ratio of change in reference input voltage to change
in cathode to anode voltage
Ik = 10 mA, ∆VKA = 10 V to Vref
Ik = 10 mA, ∆VKA = 36 V to 10 V
Min.
Typ.
Max.
2.47 2.495 2.52
2.44
2.55
V
-
7
30
-
7
30
mV
-2.7
-2
-1.4
-1
-
-2.7
-2
-1.4
-1
-
mV/V
-
1.8
-
4
6.5
-
1.8
-
4
6.5
µA
-
0.8
2.5
-
0.8
1.2
µA
Reference input current
Ik = 10 mA, R1 = 10 kΩ, R2 = ∞
Tmin ≤ Tamb ≤ Tmax
Reference input current deviation overtemperature
range
Ik = 10 mA, R1 = 10 kΩ, R2 = ∞, Tmin ≤ Tamb ≤
Tmax
Imin
Minimum cathode current for regulation
VKA = Vref
-
0.5
1
-
0.5
0.6
mA
Ioff
Off-state cathode current
Tmin ≤ Tamb ≤ Tmax
-
2.6
1000
3000
-
2.6
1000
3000
nA
Dynamic impedance(2)
VKA = Vref, ∆ Ik = 1 to 100 mA, F ≤ 1 kHz
-
0.22
0.5
-
0.22
0.5
Ω
ZKA
1. See definition of Section : Reference input voltage deviation overtemperature range below.
∆V KA
2. The dynamic impedance is defined as |ZKA| = ---------------
∆I k
Reference input voltage deviation overtemperature range
∆Vref is defined as the difference between the maximum and minimum values obtained over
the full temperature range.
∆Vref = Vref max - Vref min
Figure 6. Reference input voltage deviation overtemperature range
8/22
DocID4467 Rev 17
TL431, TL432
Electrical characteristics
Figure 7. Test circuit for VKA = Vref
Figure 8. Test circuit for programming mode
Input
Input
R
Output
R
IK
Output
R1
IK=10mA
VKA
IREF
R2
VKA
VREF
VREF
R1- ) + R1 x I
VKA = VREF ( 1 + -----REF
R2
Figure 9. Test circuit for Ioff
Figure 10. Test circuit for phase margin and
voltage gain
VKA=36V
10µF
10µF
Figure 11. Test circuit for response time
Output
8.25kΩ
Input
IK=10mA
15kΩ
IOFF
VREF
Figure 12. Reference voltage vs. temperature
1 mA
0 mA
Output
IK=1mA
Cathode voltage VKA (V)
2.54
VKA = VREF
IK = 10 mA
2.52
2.50
2.48
2.46
2.44
-40
-20
0
20
40
60
80
100
120
Temperature (°C)
DocID4467 Rev 17
9/22
22
Electrical characteristics
TL431, TL432
Figure 13. Reference voltage vs. cathode
current
Figure 14. Zoom on reference voltage vs.
cathode current
Figure 15. Reference current vs. temperature
Figure 16. Off-state cathode current vs.
temperature
0.4
Off-state current IOFF (µA)
Reference current IREF (µA)
2.0
IK=10 mA
R1=10kΩ
R2= + ∝
1.5
1.0
0.5
0.0
-40
VKA = 36 V
VREF = 0 V
0.3
0.2
0.1
-20
0
20
40
60
80
100
0.0
-40
120
-20
0
Figure 17. Ratio of change in Vref to change in
VKA vs. temperature
Static impedance RKA (Ω)
∆VREF / ∆VKA (mV / V)
60
80
100
120
0.20
IK = 10 mA
-0.5
-1.0
-1.5
VKA=VREF
0.18
0.16
0.14
0.12
-20
0
20
40
60
80
100
120
0.10
-40
-20
0
20
40
60
Temperature (°C)
Temperature (°C)
10/22
40
Figure 18. Static impedance RKA vs.
temperature
0.0
-2.0
-40
20
Temperature (°C)
Temperature °C
DocID4467 Rev 17
80
100
120
TL431, TL432
Electrical characteristics
Figure 19. Minimum operating current vs.
temperature
Figure 20. Gain and phase vs. frequency
Minimum cathode current IMIN (mA)
0.6
0.4
VKA = VREF
0.2
0.0
-40
-20
0
20
40
60
80
100
120
Temperature (°C)
Figure 21. Stability behavior with capacitive
loads
Figure 22. Maximum power dissipation
Figure 23. Pulse response for Ik = 1 mA
DocID4467 Rev 17
11/22
22
Package information
4
TL431, TL432
Package information
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK packages, depending on their level of environmental compliance. ECOPACK
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK is an ST trademark.
12/22
DocID4467 Rev 17
TL431, TL432
4.1
Package information
SO-8 package information
Figure 24. SO-8 package outline
Table 7. SO-8 package mechanical data
Dimensions
Symbol
Millimeters
Min.
A
Inches
Typ.
Max.
Min.
Typ.
Max.
-
1.75
-
-
0.069
A1
0.10
-
0.25
0.004
-
0.010
A2
1.25
-
-
0.049
-
-
b
0.28
-
0.48
0.011
-
0.019
c
0.17
-
0.23
0.007
-
0.010
D
4.80
4.90
5.00
0.189
0.193
0.197
E
5.80
6.00
6.20
0.228
0.236
0.244
E1
3.80
3.90
4.00
0.150
0.154
0.157
e
-
1.27
-
-
0.050
-
h
0.25
-
0.50
0.010
-
0.020
L
0.40
-
1.27
0.016
-
0.050
L1
-
1.04
-
-
0.040
-
k
0°
-
8°
0°
-
8°
ccc
-
-
0.10
-
-
0.004
DocID4467 Rev 17
13/22
22
Package information
4.2
TL431, TL432
TO-92 ammopack and tape and reel package information
Figure 25. TO-92 ammopack and tape and reel package outline
Table 8. TO-92 ammopack and tape and reel package mechanical data
Dimension (millimeters)
Dimension (Inches)
Symbol
14/22
Min.
Typ.
Max.
Min.
Typ.
Max.
A1
-
-
5.0
-
-
0.197
A
-
-
5.0
-
-
0.197
T
-
-
4.0
-
-
0.157
d
0.35
0.45
0.55
0.014
0.018
0.022
I1
2.5
-
-
0.098
-
-
P
11.7
12.7
13.7
0.461
0.500
0.539
PO
12.4
12.7
13
0.488
0.500
0.512
P2
5.95
6.35
6.75
0.234
0.250
0.266
F1/F2
2.4
2.5
2.8
0.094
0.098
0.110
∆h
-1
0
1
-0.039
0
0.039
∆P
-1
0
1
-0.039
0
0.039
W
17.5
18.0
19.0
0.689
0.709
0.748
W0
5.7
6
6.3
0.224
0.236
0.248
W1
8.5
9
9.75
0.335
0.354
0.384
W2
-
-
0.5
-
-
0.020
H
-
-
20
-
-
0.787
H0
15.5
16
16.5
0.610
0.630
0.650
H1
-
-
25
-
-
0.984
DO
3.8
4.0
4.2
0.150
0.157
0.165
L1
-
-
11
-
-
0.433
DocID4467 Rev 17
TL431, TL432
4.3
Package information
TO-92 (bulk) package information
Figure 26. TO-92 bulk package outline
0067407_H
Table 9. TO-92 bulk package mechanical data
Dimension (millimeters)
Dimension (Inches)
Symbol
Min.
Typ.
Max.
Min.
Typ.
Max.
A
-
1.35
-
-
0.053
-
B
-
-
4.70
-
-
0.185
C
-
2.54
-
-
0.100
-
D
4.40
-
-
0.173
-
-
E
12.70
-
-
0.500
-
-
F
-
-
3.70
-
-
0.146
a
-
-
0.5
-
-
0.019
DocID4467 Rev 17
15/22
22
Package information
4.4
TL431, TL432
SOT23-3 package information
Figure 27. SOT23-3 package outline
Table 10. SOT23-3 package mechanical data
Dimensions
Symbol
16/22
Millimeters
Inches
Min.
Typ.
Max.
Min.
Typ.
Max.
A
0.89
-
1.12
0.035
-
0.044
A1
0.01
-
0.10
0.0004
-
0.004
A2
0.88
0.95
1.02
0.035
0.037
0.040
b
0.30
-
0.50
0.012
-
0.020
c
0.08
-
0.20
0.003
-
0.008
D
2.80
2.90
3.04
0.110
0.114
0.120
E
2.10
-
2.64
0.083
-
0.104
E1
1.20
1.30
1.40
0.047
0.051
0.055
e
-
0.95
-
-
0.037
-
e1
-
1.90
-
-
0.075
-
L
0.40
0.50
0.60
0.016
0.020
0.024
L1
-
0.54
-
-
0.021
-
k
0d
-
8d
-
-
-
DocID4467 Rev 17
TL431, TL432
4.5
Package information
SOT23-5 package information
Figure 28. SOT23-5 package outline
7049676_I
Table 11. SOT23-5 package mechanical data
Dimensions
Symbol
Millimeters
Inches
Min.
Typ.
Max.
Min.
Typ.
Max.
A
0.90
-
1.45
0.035
-
0.057
A1
-
-
0.15
-
-
0.006
A2
0.90
-
1.30
0.035
-
0.051
b
0.35
-
0.50
0.014
-
0.020
c
0.09
-
0.20
0.004
-
0.008
D
2.80
-
3.05
0.110
-
0.120
E
1.50
-
1.75
0.059
-
0.069
e
-
0.95
-
-
0.037
-
H
2.60
-
3.00
0.102
-
0.118
L
0.10
-
0.60
0.004
-
0.024
θ
0 degrees
-
10 degrees
-
-
-
DocID4467 Rev 17
17/22
22
Package information
4.6
TL431, TL432
SOT323-6 package information
Figure 29. SOT323-6 package outline
7095021_E
Table 12. SOT323-6 package mechanical data
Dimensions
Symbol
18/22
Millimeters
Inches
Min.
Typ.
Max.
Min.
Typ.
Max.
A
0.80
-
1.10
0.031
-
0.043
A1
0
-
0.10
-
-
0.004
A2
0.80
-
1.00
0.031
-
0.039
b
0.15
-
0.30
0.006
-
0.012
c
0.10
-
0.18
0.004
-
0.007
D
1.80
-
2.20
0.071
-
0.087
E
1.15
-
1.35
0.045
-
0.053
e
-
0.65
-
-
0.026
-
HE
1.80
-
2.40
0.071
-
0.094
L
0.10
-
0.40
0.004
-
0.016
Q1
0.10
-
0.40
0.004
-
0.016
DocID4467 Rev 17
TL431, TL432
5
Ordering information
Ordering information
Table 13. Order codes
Order code
Accuracy (%)
Temperature range
Package
Packing
SO-8
Tube or
Tape and reel
Marking
TL431CD
TL431CDT
2
TL431ACD
TL431ACDT
1
TL431CZ
TL431CZT
TL431CZ-AP
2
TL431ACZ
TL431ACZT
TL431ACZ-AP
1
TL431CL3T
2
TL431ACL3T
1
TL431CL5T
2
TL431ACL5T
1
TL431CCT
2
TL431ACCT
1
TL431ID
TL431IDT
2
TL431AID
TL431AIDT
1
TL431IZ
TL431IZT
TL431IZ-AP
2
TL431AIZ
TL431AIZT
TL431AIZ-AP
1
TL431IL3T
2
TL431AIL3T
1
TL432IL3T
2
TL432AIL3T
1
TL431IL5T
2
TL431AIL5T
1
TL431ICT
2
TL431AICT
1
TL431BL3T
0.5
-40 °C to +125 °C
SOT23-3
1B
TL432BL3T
0.5
-40 °C to +125 °C
SOT23-3
2B
431CH
431ACH
TL431C
TO-92
Bulk or
Tape or
Ammopack
0 °C to +70 °C
TL431AC
L19
SOT23-3
SOT23-5
L18
Tape
L19
L18
31C
SOT323-6
31C
431IH
SO-8
Tube or
tape and reel
431AIH
TL431I
TO-92
Bulk or
Tape or
Ammopack
TL431AI
-40 °C to +105 °C
L17
SOT23-3
L16
32I
SOT23-3
SOT23-5
SOT323-6
DocID4467 Rev 17
32AI
Tape
L17
L16
31I
31I
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Ordering information
TL431, TL432
Table 13. Order codes (continued)
Order code
Accuracy (%)
TL431IYD(1)
TL431IYDT(1)
2
TL431AIYD(1)
TL431AIYDT(1)
1
Temperature range
Package
Packing
-40 °C to +125 °C
SO-8
(Automotive
grade level)
Tube or
tape and reel
Marking
431IY
431AIY
1. Qualification and characterization according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC
Q001 and Q 002 or equivalent.
20/22
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TL431, TL432
6
Revision history
Revision history
nes
Table 14. Document revision history
Date
Revision
Changes
01-Mar-2002
1
Initial release.
01-Nov-2005
2
PPAP references inserted in order codes table on cover page.
13-Dec-2006
3
Corrected TO-92 package information.
08-Jun-2007
4
Specified that SO-8 package is batwing package.
In electrical characteristics tables, moved negative values from max column to
min column.
Corrected captions of Figure 7 and of Figure 18.
Added footnote to Table 8: TO-92 bulk package mechanical data.
25-Feb-2008
5
Corrected SO-8 package mechanical data.
Corrected footnote for automotive grade order codes in order code table.
Corrected packing information for TO-92 devices in order code table.
Changed IMIN to 0.6 mA in Table 3 and Table 4.
Increased temperature range to 125°C in temperature curves.
Added Table 5, dedicated to automotive version.
Increased high temperature for automotive range up to +125 °C in Table 5 and
in Table 12: Order codes.
Inserted accuracy column in Table 12.
04-Jun-2009
6
09-Jun-2009
7
Corrected minor error in package column in Table 12.
14-Mar-2011
8
Added Figure 3 on page 3, Section 4.4 on page 15 and Section 4.5 on page
16.
07-Oct-2011
9
Added new package mechanical data Table 11 on page 17 and Figure 29 on
page 17.
Updated Table 12 on page 18.
17-Nov-2011
10
Added new part number TL432, new order code Table 12 on page 18 and pin
connection for TL432 Figure 3 on page 3.
03-Dec-2012
11
Removed temperature range in title Table 3 on page 5, Table 4 on page 6 and
Table 5 on page 7.
07-Dec-2017
12
Updated main title on page 1 and Section : Features on page 1, (added
“automotive” - AEC-Q100 qualified).
Updated Table 1 on page 4 (updated Rthja and Rthjc).
Minor modifications throughout document.
Added the part number TL431B and all its occurrences throughout the
10-Sep-2020
13
23-Sep-2020
14
Updated Table 4: TL431B (Tamb = 25 °C unless otherwise specified).
08-Feb-2021
15
Updated Table 13: Order codes.
14-Feb-2022
16
Added new order code TL432BL3T and updated Marking in Table 13.
02-Sep-2022
17
Added min. and max. values dimension d in Table 8.
document.
DocID4467 Rev 17
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TL431, TL432
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