Datasheet

Electrical Characteristics TL431
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Figure 15. Static impedance R
KA
vs. temp. Figure 16. Maximum operating current vs. temp.
Figure 17. Gain & phase vs. frequency Figure 18. Stability behaviour with capacitive
loads
Figure 19. Maximum power dissipation Figure 20. Pulse response for IK = 1mA
-40 -20 0 20 40 60 80 100
0.20
0.22
0.24
0.26
0.28
0.30
V
KA
=V
REF
T
AMB
=+25°C
Static impedance R
KA
(Ω)
Temperature (°C)
-40 -20 0 20 40 60 80 100
0.0
0.2
0.4
0.6
V
KA
= V
REF
Minimum cathode current I
MIN
(mA)
Temperature (°C)
1 10 100 1000 10000
-40
-20
0
20
40
60
-200
-150
-100
-50
0
50
100
150
200
Gain (dB)
Frequency (kHz)
I
K
=10 mA
See figure 4
Phase
Gain
Phase (°)
1E-10 1E-9 1E-8 1E-7 1E-6 1E-5
0
20
40
60
80
100
Instable
Area
V
KA
=24 V
V
KA
=12 V
V
KA
=5 V
V
KA
=V
REF
Cathode current (mA)
Capacitive load (Farad)
10 20 30
0
20
40
60
80
100
T
AMB
= +25°C
Safe
Area
SO8
Batwing
TO92
Cathode current (mA)
Cathode voltage (V)
0246810
0
2
4
6
V
KA
=V
REF
T
AMB
=+25°C
Output
Input
Input and Output voltage (V)
Time (µs)