Datasheet

TL1431 Electrical characteristics
Doc ID 5286 Rev 5 9/18
Figure 10. Reference voltage vs. cathode
current
Figure 11. Reference voltage vs. cathode
current (I
K
= 0 to 1 mA)
-40-200 20406080100
-1
0
1
2
3
V
KA
=V
REF
See figure 1
Reference voltage (V)
Cathode current (mA)
0.00.20.40.60.81.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
V
KA
=V
REF
See figure 1
Reference voltage (V)
Cathode current (mA)
Figure 12. Reference current vs. temperature Figure 13. Off-state cathode current vs.
temperature
-40-20 0 20406080100120
0.0
0.5
1.0
1.5
2.0
I
K
=10 mA
V
KA
=V
REF
See figure 1
I
REF
(µA)
Temperature (°C)
-40-200 20406080100120
0.00
0.02
0.04
0.06
0.08
0.10
V
KA
= 36V
See figure 3
I
OFF
(µA)
Temperature(°C)
Figure 14. Ratio of change in V
REF
to change
in V
KA
vs. temperature
Figure 15. Drift of R
KA
vs. temperature
-40 -20 0 20 40 60 80 100 120
-2.0
-1.5
-1.0
-0.5
0.0
I
K
=10 mA
V
KA
=V
REF
See figure 2
ΔV
REF
/ ΔV
KA
(mV / V)
Temperature (°C)
-40 -20 0 20 40 60 80 100 120
-0.04
-0.03
-0.02
-0.01
0.00
I
K
=10 mA
V
KA
=V
REF
= 2.5V
see figure 1
Δ R
KA
(Ω)
Temperature (°C)