LM431SA, LM431SB, LM431SC
140
120
100
A
A. VKA = Vref
B. VKA = 5.0 V @ IK = 10 mA
TA = 25°C
80
60
40
20
B
0
100p
1n
10n
100n
1?
10?
CL − Load Capacitance
Figure 16. Stability Boundary Conditions
5
4
3
2
1
0
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
Ref.R−eCf.−aCtahtohoddee VVooltlatgaeg(Ve) (V)
Figure 18. Reference−Cathode Diode Curve
5
4
3
2
1
0
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
AnAondodee−−RReeff..VVooltaltgaeg(Ve)(V)
Figure 17. Anode−Reference Diode Curve
2.51
2.50
2.49
2.48
2.47
2.46
−50 −25
0
25
50
75 100 125
TA − Ambient Temperature (°C)
Figure 19. Reference Input Voltage vs. Ambient
Temperature
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