TL431_10 Datasheet, PDF (22/75 Pages) Texas Instruments – PRECISION PROGRAMMABLE REFERENCE

TL431, TL431A, TL431B
TL432, TL432A, TL432B
SLVS543K – AUGUST 2004 – REVISED JUNE 2010
2600
2580
2560
REFERENCE VOLTAGE
vs
FREE-AIR TEMPERATURE
V_KA = V_ref
I_KA = 10 mA
V_ref = 2550 mV
2540
2520
2500
V_ref = 2495 mV
2480
2460
2440
V_ref = 2440 mV
2420
2400
−75
−50 −25 0 25 50 75
T_A − Free-Air Temperature − °C
Figure 4.
100 125
CATHODE CURRENT
vs
CATHODE VOLTAGE
150
V_KA = V_ref
125 T_A = 25°C
100
75
50
25
0
−25
−50
−75
−100
−2
−1
0
1
2
3
V_KA − Cathode Voltage − V
Figure 6.
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REFERENCE CURRENT
vs
FREE-AIR TEMPERATURE
5
R1 = 10 kΩ
R2 = ∞
I_KA = 10 mA
4
3
2
1
0
−75 −50 −25 0
25 50
75 100 125
T_A − Free-Air Temperature − °C
Figure 5.
CATHODE CURRENT
vs
CATHODE VOLTAGE
800
V_KA = V_ref
T_A = 25°C
600
I_{m i n}
400
200
0
−200
−1
0
1
2
3
V_KA − Cathode Voltage − V
Figure 7.
22
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