TL431, TL432
Electrical characteristics
Figure 13. Reference voltage vs. cathode
current
Figure 14. Zoom on reference voltage vs.
cathode current
Figure 15. Reference current vs. temperature
2.0
Reference current I
REF
(
μ
A)
I
K
=10 mA
R
1
=10k
Ω
R2= +
∝
Figure 16. Off-state cathode current vs.
temperature
0.4
Off-state current I
OFF
(
μ
A)
V
KA
= 36 V
V
REF
= 0 V
0.3
1.5
1.0
0.2
0.5
0.1
0.0
-40
-20
0
20
40
60
80
100
120
0.0
-40
-20
0
20
40
60
80
100
120
Temperature °C
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
Static impedance R
KA
(
Ω
)
Δ
V
REF
/
Δ
V
KA
(mV / V)
-0.5
I
K
= 10 mA
0.18
V
KA
=V
REF
0.16
-1.0
0.14
-1.5
0.12
-2.0
-40
-20
0
20
40
60
80
100
120
0.10
-40
-20
0
20
40
60
80
100
120
Temperature (
°
C)
Temperature (
°
C)
Doc ID 4467 Rev 11
9/21
STMICROELECTRONICS [ STMICROELECTRONICS ]
