SMD Type
TL431
Classification Of V
REF
Rank
Range
0.5%
2.487
2.512
2.475
1%
2.525
2.450
2%
2.550
IC
Typical Characteristics
800
125
V
KA
= V
REF
T
A
= 25
V
KA
= V
REF
T
A
= 25
Cathode Current (mA)
75
50
25
0
-25
-50
-75
-100
-2
-1
0
1
2
3
Cathode Current ( A)
100
600
400
I
KA
(MIN)
200
0
-200
-1
0
1
2
3
Cathode Voltage (V)
Cathode Voltage (V)
Cathode Current vs. Cathode Voltage
Change in Reference Input voltage (mV)
0
-5
-10
-15
-20
-25
-30
-35
-40
0
5
10
15
20
25
30
35
40
I
KA
= 10mA
T
A
= 25
100
70
40
20
Cathode Current vs. Cathode Voltage
T
A
= 25
I
KA
= 1mA to 100mA
Impedance ( )
10
7
4
2
1
0.7
0.4
0.2
0.1
1K
10K
100K
1M
10M
Cathode Voltage (V)
Frequency (Hz)
Change in Reference Input Voltage vs.
Cathode Voltage
70
6
I
KA
= 10mA
T
A
= 25
Dynamic Impedance Frequency
T
A
= 25
Input and Output Voltage (V)
Voltage Amplification (dB)
60
50
40
30
20
10
0
-10
1K
10K
100K
INPUT
8
4
3
OUTPUT
2
1
0
1M
10M
0
1
2
3
4
5
6
7
Frequency (Hz)
Time (
s)
Small Signal Voltage Amplification
vs. Frequency
Pulse Response
2
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