Datasheet

Input V
KA
I
off
Input
V
KA
I
KA
V
I(ref)
Input V
KA
I
KA
V
I(ref)
I
I(ref)
R1
R2
V
KA
+ V
I(ref)
ǒ
1 )
R1
R2
Ǔ
) I
I(ref)
R1
TL1431
SLVS062M –DECEMBER 1991–REVISED APRIL 2012 www.ti.com
PARAMETER MEASUREMENT INFORMATION
Figure 1. Test Circuit for V
(KA)
= V
ref
Figure 2. Test Circuit for V
(KA)
> V
ref
Figure 3. Test Circuit for I
off
TYPICAL CHARACTERISTICS
Data at high and low temperatures are applicable only within the recommended operating free-air temperature
ranges of the various devices.
Table of Graphs
GRAPH FIGURE
Reference voltage vs Free-air temperature Figure 4
Reference current vs Fire-air temperature Figure 5
Cathode current vs Cathode voltage Figure 6, Figure 7
Off-state cathode current vs Free-air temperature Figure 8
Ratio of delta reference voltage to delta cathode voltage vs Free-air temperature Figure 9
Equivalent input-noise voltage vs Frequency Figure 10
Equivalent input-noise voltage over a 10-second period Figure 11
Small-signal voltage amplification vs Frequency Figure 12
Reference impedance vs Frequency Figure 13
Pulse response Figure 14
Stability boundary conditions Figure 15
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