TL1431 Datasheet, PDF (6/28 Pages) STMicroelectronics – PROGRAMMABLE VOLTAGE REFERENCE

TL1431
PRECISION PROGRAMMABLE REFERENCE
SLVS062L – DECEMBER 1991 – REVISED OCTOBER 2007
PARAMETER MEASUREMENT INFORMATION
Input
V_KA
I_KA
Input
R1
I_I(ref)
V_KA
I_KA
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V_I(ref)
Figure 1. Test Circuit for V_(KA) = V_ref
Input
R2 VI(ref)
ǒ Ǔ VKA + VI(ref)
1
)
R1
R2
) II(ref)
R1
Figure 2. Test Circuit for V_(KA) > V_ref
V_KA
I_off
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
Reference voltage vs Free-air temperature
Reference current vs Free-air temperature
Cathode current vs Cathode voltage
Off-state cathode current vs Free-air temperature
Ratio of delta reference voltage to delta cathode voltage vs Free-air temperature
Equivalent input-noise voltage vs Frequency
Equivalent input-noise voltage over a 10-second period
Small-signal voltage amplification vs Frequency
Reference impedance vs Frequency
Pulse response
Stability boundary conditions
FIGURE
4
5
6, 7
8
9
10
11
12
13
14
15
6
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