TLV431A, TLV431B
Input
I
K
V
KA
Input
I
K
R1
V
ref
I
ref
V
KA
Input
I
K(off)
V
KA
R2
V
ref
V
KA
+
V
ref
1
)
R1
)
I
S
R1
ref
R2
Figure 3. Test Circuit
for V
KA
= V
ref
Figure 4. Test Circuit
for V
KA
u
V
ref
Figure 5. Test Circuit
for I
K(off)
30
I K , CATHODE CURRENT (mA)
110
90
Input
I
K
V
KA
20
Input
I
K
V
KA
I K , CATHODE CURRENT (
m
A)
70
50
30
10
V
KA
= V
ref
T
A
= 25°C
I
K(min)
10
V
KA
= V
ref
T
A
= 25°C
0
−10
−30
0
0.2
0.4
0.6
0.8
1.0
V
KA
, CATHODE VOLTAGE (V)
1.2
1.4
−10
−1.0
−0.5
0
0.5
1.0
1.5
V
KA
, CATHODE VOLTAGE (V)
2.0
Figure 6. Cathode Current vs. Cathode Voltage
Figure 7. Cathode Current vs. Cathode Voltage
1.25
Vref , REFERENCE INPUT VOLTAGE (V)
I ref , REFERENCE INPUT CURRENT (
m
A)
Vref
(max)
0.15
Input
I
K
10 k
I
ref
V
KA
1.24
Vref
(typ)
0.14
I
K
= 10 mA
1.23
Input
V
KA
= V
ref
I
K
= 10 mA
VKA
IK
Vref
(min)
TLV431A Typ.
85
0.13
1.22
−40
−15
10
35
60
T
A
, AMBIENT TEMPERATURE (°C)
0.12
−40
−15
10
35
60
T
A
, AMBIENT TEMPERATURE (°C)
85
Figure 8. Reference Input Voltage versus
Ambient Temperature
Figure 9. Reference Input Current versus
Ambient Temperature
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