TL431-Q1 Datasheet, PDF (7/26 Pages) Texas Instruments – ADJUSTABLE PRECISION SHUNT REGULATOR

TL431−Q1
ADJUSTABLE PRECISION SHUNT REGULATOR
SGLS302D − MARCH 2005 − REVISED MARCH 2013
TYPICAL CHARACTERISTICS^{
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 75 100 125
T_A − Free-Air Temperature − °C
‡ _{Data is for devices having the indicated value of Vref at IKA = 10 mA,}
T_A = 25°C.
Figure 5
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 6
CATHODE CURRENT
vs
CATHODE VOLTAGE
150
V_KA = V_ref
125 T_A = 25°C
100
CATHODE CURRENT
vs
CATHODE VOLTAGE
800
V_KA = V_ref
T_A = 25°C
600
75
I_min
50
400
25
0
200
−25
−50
0
−75
−100
−200
−2
−1
0
1
2
3
−1
0
1
2
3
V_KA − Cathode Voltage − V
V_KA − Cathode Voltage − V
Figure 7
Figure 8
† _{Data at high and low temperatures is applicable only within the recommended operating free-air temperature ranges of the various devices.}
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