TL1431_05 Datasheet, PDF (7/13 Pages) STMicroelectronics – Programmable Voltage Reference

TL1431
Electrical Characteristics
Figure 9. Reference voltage vs. temp.
Figure 10. Reference voltage vs. cathode current
2.500
2.498
2.496
2.494
2.492
2.490
2.488
I =10 mA
K
V =V =2.5 V
KA REF
See figure 1
2.486
-40 -20 0 20 40 60 80 100 120
Temperature (°C)
3
2
1
V =V
KA REF
See figure 1
0
-1
-40 -20
0
20 40 60
Cathode current (mA)
80 100
Figure 11. Reference voltage vs. cathode current Figure 12. Reference current vs. temp.
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0.0
V =V
KA REF
See figure 1
0.2
0.4
0.6
0.8
1.0
Cathode current (mA)
2.0
1.5
1.0
I =10 mA
K
0.5
V =V
KA REF
See figure 1
0.0
-40 -20 0 20 40 60 80 100 120
Temperature (°C)
Figure 13. Off-state cathode current vs. temp. Figure 14. Ratio of change in V_REF to change in
V_KA vs. temp.
0.10
0.08
V = 36V
KA
See figure 3
0.06
0.04
0.02
0.00
-40 -20 0
20 40 60 80
Temperature(°C)
100 120
0.0
I =10 mA
K
-0.5
V =V
KA REF
See figure 2
-1.0
-1.5
-2.0
-40 -20 0
20 40 60 80
Temperature (°C)
100 120
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