TL1431-Q1 Datasheet, PDF (6/19 Pages) Texas Instruments – PRECISION PROGRAMMABLE REFERENCE

TL1431ĆQ1
PRECISION PROGRAMMABLE REFERENCE
SLVS534B − JUNE 2004 − REVISED APRIL 2008
TYPICAL CHARACTERISTICS^†
REFERENCE VOLTAGE
vs
FREE-AIR TEMPERATURE
2.52
VI(ref) = VKA
IKA = 10 mA
2.51
REFERENCE CURRENT
vs
FREE-AIR TEMPERATURE
2.5
IKA = 10 mA
R1 = 10 kΩ
R2 = ∞
2
1.5
2.5
1
2.49
0.5
2.48
− 50 − 25 0 25 50 75 100 125
TA − Free-Air Temperature − °C
Figure 4
0
− 50 − 25 0
25 50
75 100 125
TA − Free-Air Temperature − °C
Figure 5
CATHODE CURRENT
vs
CATHODE VOLTAGE
150
VKA = VI(ref)
TA = 25°C
100
50
0
− 50
− 100
− 150
−3 −2
−1
0
1
2
3
VKA − Cathode Voltage − V
Figure 6
CATHODE CURRENT
vs
CATHODE VOLTAGE
800
VKA = VI(ref)
TA = 25°C
600
400
200
0
− 200−2
−1
0
1
2
3
4
VKA − Cathode Voltage − V
Figure 7
† _{Data at high and low temperatures are applicable only within the recommended operating free-air temperature ranges of the various devices.}
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