TL431AIL3T Datasheet, PDF (9/21 Pages) STMicroelectronics – Programmable voltage reference

TL431, TL432
Figure 13. Reference voltage vs. cathode
current
Electrical characteristics
Figure 14. Zoom on reference voltage vs.
cathode current
Figure 15. Reference current vs. temperature Figure 16. Off-state cathode current vs.
temperature
2.0
0.4
V = 36 V
KA
I =10 mA
K
V = 0V
REF
1.5
R =10kΩ
1
0.3
R2= + ∝
1.0
0.2
0.5
0.1
0.0
-40 -20 0 20 40 60 80 100 120
Temperature °C
0.0
-40 -20 0
20 40 60 80 100 120
Temperature (°C)
Figure 17. Ratio of change in V_ref to change in Figure 18. Static impedance R_KA vs.
V_KA vs. temperature
temperature
0.0
0.20
0.18
V =V
KA REF
-0.5
I = 10 mA
K
0.16
-1.0
0.14
-1.5
0.12
-2.0
-40 -20 0
20 40 60 80 100 120
Temperature (°C)
0.10
-40 -20 0 20 40 60 80 100 120
Temperature (°C)
Doc ID 4467 Rev 11
9/21