TL431, A, B Series
Figure 1. Test Circuit for V
= V
ref
Figure 2. Test Circuit for V
> V
Figure 3. Test Circuit for I
off
KA
KA
ref
Input
V
Input
V
KA
KA
Input
V
KA
I
I
off
K
I
K
I
R1
ref
V
ref
R2
R1
R2
V
V
1
I
R1
KA
ref
ref
V
ref
Figure 4. Cathode Current versus
Cathode Voltage
Figure 5. Cathode Current versus
Cathode Voltage
150
100
50
800
600
400
200
0
V
T
= V
°
V
T
= V
°
KA
= 25
ref
KA
= 25
ref
C
C
A
A
I
Input
V
KA
Min
Input
V
KA
K
I
K
I
0
–50
–100
–200
–1.0
–2.0
–1.0
0
1.0
2.0
3.0
0
1.0
, CATHODE VOLTAGE (V)
2.0
3.0
V
, CATHODE VOLTAGE (V)
V
KA
KA
Figure 6. Reference Input Voltage versus
Ambient Temperature
Figure 7. Reference Input Current versus
Ambient Temperature
2600
2580
2560
2540
2520
2500
3.0
V
Input
KA
I
V
= V
ref
K
KA
= 10 mA
V
Max = 2550 mV
ref
2.5
2.0
1.5
1.0
0.5
0
I
V
K
ref
V
Typ = 2495 mV
ref
I
= 10 mA
I
2480
2460
K
V
Input
10k
KA
I
K
ref
2440
V
Min = 2440 mV
100
ref
2420
2400
–55
–25
0
25
50
75
C)
125
–55
–25
0
25
50
75
C)
100
125
T , AMBIENT TEMPERATURE (
°
T , AMBIENT TEMPERATURE (
°
A
A
5
MOTOROLA ANALOG IC DEVICE DATA
MOTOROLA [ MOTOROLA ]
