This is information on a product in full production.
September 2020 DocID4467 Rev 14 1/22
TL431
TL432
Automotive adjustable voltage reference
Datasheet
-
production data
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
Applications
•Power supply
•Industrial
•Automotive
Description
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)
Z
TO-92
(Plastic package)
L
SOT23-3
L
SOT23-5
C
SOT323-6
www.st.com
Contents TL431, TL432
2/22 DocID4467 Rev 14
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
DocID4467 Rev 14 3/22
TL431, TL432 Schematic diagrams
22
1 Schematic diagrams
Figure 1. TO-92 pin connections (top view)
Figure 2. SO-8 batwing pin connections (top view)
Figure 3. SOT23-5 and SOT23-3 pin connections (top view)
Figure 4. SOT323-6 pin connections (top view)
Figure 5. TL431 and TL432 block diagram
SO8
Anode
Cathode Ref1
2
3
7
8
4
6
NC5
Anode
NC
SOT23-3SOT23-5
NC
NC
Cathode Ref
Anode1
2
3 4
5 Cathode
Ref Anode
1
2 3
TL431 TL431 TL432
Anode
Cathode
Vref
Ref
Absolute maximum ratings and operating conditions TL431, TL432
4/22 DocID4467 Rev 14
2 Absolute maximum ratings and operating conditions
Table 1. Absolute maximum ratings
Symbol Parameter Value Unit
V
KA
Cathode to anode voltage 37 V
I
k
Continuous cathode current range -100 to +150 mA
I
ref
Reference input current range -0.05 to +10 mA
R
thjc
Thermal resistance junction to case
TO-92
SO-8 batwing
SOT23-3L
SOT23-5L
SOT323-6L
57
30
136
67
110
°C/W
R
thja
Thermal resistance junction to ambient
TO-92
SO-8 batwing
SOT23-3L
SOT23-5L
SOT323-6L
200
85
248
157
221
°C/W
T
stg
Storage temperature range -65 to +150 °C
T
J
Junction temperature 150 °C
ESD
TL431IY, TL431AIY-T: HBM (human body model)
(1)
TL431-TL432: HBM (human body model)
MM: machine model
(2)
CDM: charged device model
(3)
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.
3000
2000
200
1500
V
Table 2. Operating conditions
Symbol Parameter Value Unit
V
KA
Cathode to anode voltage V
ref
to 36 V
I
k
Cathode current 1 to 100 mA
T
oper
Operating free-air temperature range
TL431C/AC
TL431I/AI - TL432I/AI
TL431B
TL431IY/AIY
0 to +70
-40 to +105
-40 to +125
-40 to +125
°C
DocID4467 Rev 14 5/22
TL431, TL432 Electrical characteristics
22
3 Electrical characteristics
Table 3. TL431C (T
amb
= 25 °C unless otherwise specified)
Symbol Parameter
TL431C TL431AC
Unit
Min. Typ. Max. Min. Typ. Max.
V
ref
Reference input voltage
V
KA
= V
ref
, I
k
= 10 mA, T
amb
= 25 °C
T
min
≤ T
amb
≤ T
max
2.44
2.423
2.495
-
2.55
2.567
2.47
2.453
2.495
-
2.52
2.537
V
∆V
ref
Reference input voltage deviation overtemperature
range
(1)
V
KA
= V
ref
, I
k
= 10 mA, T
min
≤ T
amb
≤ T
max
-3 17 -3 15
mV
Ratio of change in reference input voltage to change
in cathode to anode voltage
I
k
= 10 mA - ∆V
KA
= 10 V to V
ref
∆V
KA
= 36 V to 10 V
-2.7
-2
-1.4
-1
-
-
-2.7
-2
-1.4
-1
-
-
mV/V
I
ref
Reference input current
I
k
= 10 mA, R1 = 10 kΩ, R2 = ∞
T
amb
= 25 °C
T
min
≤ T
amb
≤ T
max
-
-
1.8
-
4
5.2
-
-
1.8
-
4
5.2
µA
∆I
ref
Reference input current deviation overtemperature
range
I
k
= 10 mA, R1 = 10 kΩ, R2 =∞
T
min
≤ T
amb
≤ T
max
-0.4 1.2 -0.4 1.2
µA
I
min
Minimum cathode current for regulation
V
KA
= V
ref
-0.5 1 -0.5 0.6 mA
I
off
Off-state cathode current - 2.6 1000 - 2.6 1000 nA
ZKADynamic impedance
(2)
V
KA
= V
ref
, ∆ I
k
= 1 to 100 mA, f ≤ 1 kHZ - 0.22 0.5 - 0.22 0.5 Ω
1. See definition of Section : Reference input voltage deviation overtemperature range.
2. The dynamic impedance is defined as
|
ZKA
|
=
∆Vref
∆V k a
------------
∆V
KA
I
k
∆
----------------
Electrical characteristics TL431, TL432
6/22 DocID4467 Rev 14
Table 4. TL431B (T
amb
= 25 °C unless otherwise specified)
Symbol Parameter
TL431B
Unit
Min. Typ. Max.
V
ref
Reference input voltage
V
KA
= V
ref
, I
k
= 10 mA, T
amb
= 25 °C
T
min
≤ T
amb
≤ T
max
2.483
2.453
2.495
-
2.507
2.537
V
∆V
ref
Reference input voltage deviation overtemperature range
(1)
V
KA
= V
ref
, I
k
= 10 mA, T
min
≤ T
amb
≤ T
max
-7 30
mV
Ratio of change in reference input voltage to change in cathode to
anode voltage
I
k
= 10 mA - ∆V
KA
= 10 V to V
ref
∆V
KA
= 36 V to 10 V
-2.7
-2
-1.4
-1
-
-
mV/V
I
ref
Reference input current
I
k
= 10 mA, R1 = 10 kΩ, R2 = ∞
T
amb
= 25 °C
T
min
≤ T
amb
≤ T
max
-
-
1.8
-
4
6.5
µA
∆I
ref
Reference input current deviation overtemperature range
I
k
= 10 mA, R1 = 10 kΩ, R2 =∞
T
min
≤ T
amb
≤ T
max
-0.8 2.5
µA
I
min
Minimum cathode current for regulation
V
KA
= V
ref
-0.45 0.6 mA
I
off
Off-state cathode current - 180 500 nA
ZKADynamic impedance
(2)
V
KA
= V
ref
, ∆ I
k
= 1 to 100 mA, f ≤ 1 kHZ - 0.22 0.5 Ω
1. See definition of Section : Reference input voltage deviation overtemperature range.
2. The dynamic impedance is defined as
|
ZKA
|
=
∆Vref
∆V k a
------------
∆V
KA
I
k
∆
----------------
DocID4467 Rev 14 7/22
TL431, TL432 Electrical characteristics
22
Table 5. TL431I/TL432I (T
amb
= 25 °C unless otherwise specified)
Symbol Parameter
TL431I/TL432I TL431AI/TL432AI
Unit
Min. Typ. Max. Min. Typ. Max.
V
ref
Reference input voltage
V
KA
= V
ref
, I
k
= 10 mA, T
amb
= 25 °C
T
min
≤ T
amb
≤ T
max
2.44
2.41
2.495
-
2.55
2.58
2.47
2.44
2.495
-
2.52
2.55
V
∆V
ref
Reference input voltage deviation overtemperature
range
(1)
V
KA
= V
ref
, I
k
=10 mA, T
min
≤ T
amb
≤ T
max
- 7 30 - 7 30 mV
Ratio of change in reference input voltage to change
in cathode to anode voltage
I
k
= 10 mA, ∆V
KA
= 10 V to V
ref
∆V
KA
= 36 V to 10 V
-2.7
-2
-1.4
-1
-
-
-2.7
-2
-1.4
-1
-
-mV/V
I
ref
Reference input current
I
k
= 10 mA, R1 = 10 kΩ, R2 = ∞
T
amb
= 25 °C
T
min
≤ T
amb
≤T
max
-
-
1.8
-
4
6.5
-
-
1.8
-
4
6.5 µA
∆I
ref
Reference input current deviation overtemperature
range
I
k
= 10 mA, R1 = 10 kΩ, R2 = ∞
T
min
≤ T
amb
≤ T
max
-0.8 2.5 -0.8 1.2 µA
I
min
Minimum cathode current for regulation
V
KA
= V
ref
- 0.5 1 - 0.5 0.7 mA
I
off
Off-state cathode current - 2.6 1000 - 2.6 1000 nA
ZKADynamic impedance
(2)
V
KA
= V
ref
, ∆ I
k
= 1 to 100 mA, f ≤ 1 kHZ - 0.22 0.5 - 0.22 0.5 Ω
1. See definition of Section : Reference input voltage deviation overtemperature range below.
2. The dynamic impedance is defined as
|
ZKA
|
=
∆V
KA
I
k
∆
----------------
Electrical characteristics TL431, TL432
8/22 DocID4467 Rev 14
Reference input voltage deviation overtemperature range
∆
V
ref
is defined as the difference between the maximum and minimum values obtained over
the full temperature range.
∆
V
ref
= V
ref max
- V
ref min
Figure 6. Reference input voltage deviation overtemperature range
Table 6. TL431IY (T
amb
= 25 °C unless otherwise specified)
Symbol Parameter
TL431IY TL431AIY
Unit
Min. Typ. Max. Min. Typ. Max.
V
ref
Reference input voltage
V
KA
= V
ref
, I
k
= 10 mA
T
min
≤ T
amb
≤ T
max
2.44
2.41
2.495
-
2.55
2.58
2.47
2.44
2.495
-
2.52
2.55
V
∆V
ref
Reference input voltage deviation overtemperature
range
(1)
V
KA
= V
ref
, I
k
= 10 mA, T
min
≤ T
amb
≤ T
max
-7 30 -7 30 mV
Ratio of change in reference input voltage to change
in cathode to anode voltage
I
k
= 10 mA, ∆V
KA
= 10 V to V
ref
I
k
= 10 mA, ∆V
KA
= 36 V to 10 V
-2.7
-2
-1.4
-1
-
-
-2.7
-2
-1.4
-1
-
-
mV/V
I
ref
Reference input current
I
k
= 10 mA, R1 = 10 kΩ, R2 = ∞
T
min
≤ T
amb
≤T
max
-
-
1.8
-
4
6.5
-
-
1.8
-
4
6.5
µA
∆I
ref
Reference input current deviation overtemperature
range
I
k
= 10 mA, R1 = 10 kΩ, R2 = ∞, T
min
≤ T
amb
≤
T
max
-0.8 2.5 -0.8 1.2 µA
I
min
Minimum cathode current for regulation
V
KA
= V
ref
- 0.5 1 - 0.5 0.6 mA
I
off
Off-state cathode current
T
min
≤ T
amb
≤ T
max
-
-
2.6 1000
3000
-
-
2.6 1000
3000
nA
ZKADynamic impedance
(2)
V
KA
= V
ref
, ∆ I
k
= 1 to 100 mA, F ≤ 1 kHz - 0.22 0.5 - 0.22 0.5 Ω
1. See definition of Section : Reference input voltage deviation overtemperature range below.
2. The dynamic impedance is defined as
|
ZKA
|
=
∆V
KA
I
k
∆
----------------
DocID4467 Rev 14 9/22
TL431, TL432 Electrical characteristics
22
Figure 7. Test circuit for V
KA
= V
ref
Figure 8. Test circuit for programming mode
Input
V
KA
V
REF
I
K
=10mA
Output
R
V
KA
= V
REF
+ R1 x I
REF
1R1
R2
-------+
( )
Input
V
KA
V
REF
I
K
R1
R2
I
REF
ROutput
Figure 9. Test circuit for I
off
Figure 10. Test circuit for phase margin and
voltage gain
V
KA
=36V
I
OFF
Input V
REF
I
K
=10mA
Output
10µF
10µF
15kΩ8.25kΩ
Figure 11. Test circuit for response time Figure 12. Reference voltage vs. temperature
I
K
=1mA
Output
0 mA
1 mA
-40 -20 0 20 40 60 80 100 120
2.44
2.46
2.48
2.50
2.52
2.54
V
KA
= V
REF
I
K
= 10 mA
Cathode voltage V
KA
(V)
Temperature (
°
C)
Electrical characteristics TL431, TL432
10/22 DocID4467 Rev 14
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
-40 -20 0 20 40 60 80 100 120
0.0
0.5
1.0
1.5
2.0
IK=10 mA
R1=10k
Ω
R2= +
∝
Reference current IREF (
µ
A)
Temperature °C
-40 -20 0 20 40 60 80 100 120
0.0
0.1
0.2
0.3
0.4
VKA = 36 V
VREF = 0 V
Off-state current IOFF (
µ
A)
Temperature (
°
C)
Figure 17. Ratio of change in V
ref
to change in
V
KA
vs. temperature
Figure 18. Static impedance R
KA
vs.
temperature
-40 -20 0 20 40 60 80 100 120
-2.0
-1.5
-1.0
-0.5
0.0
IK = 10 mA
∆
VREF /
∆
VKA (mV / V)
Temperature (
°
C)
-40 -20 0 20 40 60 80 100 120
0.10
0.12
0.14
0.16
0.18
0.20
V
KA
=V
REF
Static impedance R
KA
(
Ω
)
Temperature (
°
C)
DocID4467 Rev 14 11/22
TL431, TL432 Electrical characteristics
22
Figure 19. Minimum operating current vs.
temperature
Figure 20. Gain and phase vs. frequency
-40 -20 0 20 40 60 80 100 120
0.0
0.2
0.4
0.6
V
KA
= V
REF
Minimum cathode current I
MIN
(mA)
Temperature (
°
C)
Figure 21. Stability behavior with capacitive
loads
Figure 22. Maximum power dissipation
Figure 23. Pulse response for I
k
= 1 mA
Package information TL431, TL432
12/22 DocID4467 Rev 14
4 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.
DocID4467 Rev 14 13/22
TL431, TL432 Package information
22
4.1 SO-8 package information
Figure 24. SO-8 package outline
Table 7. SO-8 package mechanical data
Symbol
Dimensions
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A - 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
Package information TL431, TL432
14/22 DocID4467 Rev 14
4.2 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
Symbol
Dimension (millimeters) Dimension (Inches)
Min. Typ. Max. Min. Typ. Max.
A1 - - 5.0 - - 0.197
A - - 5.0 - - 0.197
T - - 4.0 - - 0.157
d - 0.45 - - 0.018 -
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 14 15/22
TL431, TL432 Package information
22
4.3 TO-92 (bulk) package information
Figure 26. TO-92 bulk package outline
Table 9. TO-92 bulk package mechanical data
Symbol
Dimension (millimeters) Dimension (Inches)
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
0067407_H
Package information TL431, TL432
16/22 DocID4467 Rev 14
4.4 SOT23-3 package information
Figure 27. SOT23-3 package outline
Table 10. SOT23-3 package mechanical data
Symbol
Dimensions
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 14 17/22
TL431, TL432 Package information
22
4.5 SOT23-5 package information
Figure 28. SOT23-5 package outline
Table 11. SOT23-5 package mechanical data
Symbol
Dimensions
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 - - -
7049676_I
Package information TL431, TL432
18/22 DocID4467 Rev 14
4.6 SOT323-6 package information
Figure 29. SOT323-6 package outline
Table 12. SOT323-6 package mechanical data
Symbol
Dimensions
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
7095021_E
DocID4467 Rev 14 19/22
TL431, TL432 Ordering information
22
5 Ordering information
Table 13. Order codes
Order code Accuracy (%) Temperature range Package Packing Marking
TL431CD
TL431CDT 2
0 °C to +70 °C
SO-8 Tube or
Tape and reel
431C
TL431ACD
TL431ACDT 1 431AC
TL431CZ
TL431CZT
TL431CZ-AP
2
TO-92
Bulk or
Tape or
Ammopack
TL431C
TL431ACZ
TL431ACZT
TL431ACZ-AP
1 TL431AC
TL431CL3T 2
SOT23-3
Tape
L19
TL431ACL3T 1 L18
TL431BL3T 0.5 1B
TL431CL5T 2 SOT23-5 L19
TL431ACL5T 1 L18
TL431CCT 2 SOT323-6 31C
TL431ACCT 1 31C
TL431ID
TL431IDT 2
-40 °C to + 105 °C
SO-8 Tube or
tape and reel
431I
TL431AID
TL431AIDT 1 431AI
TL431IZ
TL431IZT
TL431IZ-AP
2
TO-92
Bulk or
Tape or
Ammopack
TL431I
TL431AIZ
TL431AIZT
TL431AIZ-AP
1 TL431AI
TL431IL3T 2 SOT23-3
Tape
L17
TL431AIL3T 1 L16
TL432IL3T 2 SOT23-3 32I
TL432AIL3T 1 32AI
TL431IL5T 2 SOT23-5 L17
TL431AIL5T 1 L16
TL431ICT 2 SOT323-6 31I
TL431AICT 1 31I
Ordering information TL431, TL432
20/22 DocID4467 Rev 14
TL431IYD
(1)
TL431IYDT
(1)
2
-40 °C to + 125 °C
SO-8
(Automotive
grade level)
Tube or
tape and reel
431IY
TL431AIYD
(1)
TL431AIYDT
(1)
1 431AIY
1. Qualification and characterization according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC
Q001 and Q 002 or equivalent.
Table 13. Order codes (continued)
Order code Accuracy (%) Temperature range Package Packing Marking
DocID4467 Rev 14 21/22
TL431, TL432 Revision history
22
6 Revision history
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.
04-Jun-2009 6
Changed I
MIN
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.
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 R
thja
and R
thjc
).
Minor modifications throughout document.
10-Sep-2020 13 Added the part number
TL431B and all its occurrences throughout the
document.
23-Sep-2020 14 Updated
Table 4: TL431B (T
amb
= 25 °C unless otherwise specified).
TL431, TL432
22/22 DocID4467 Rev 14
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