TL431-Q1 Datasheet, PDF (8/26 Pages) Texas Instruments – ADJUSTABLE PRECISION SHUNT REGULATOR

TL431−Q1
ADJUSTABLE PRECISION SHUNT REGULATOR
SGLS302D − MARCH 2005 − REVISED MARCH 2013
TYPICAL CHARACTERISTICS^{
OFF-STATE CATHODE CURRENT
vs
FREE-AIR TEMPERATURE
2.5
V_KA = 36 V
V_ref = 0
2
1.5
1
RATIO OF DELTA REFERENCE VOLTAGE TO
DELTA CATHODE VOLTAGE
vs
FREE-AIR TEMPERATURE
− 0.85
V_KA = 3 V to 36 V
− 0.95
−1.05
−1.15
−1.25
0.5
−1.35
0
−75 −50 −25 0 25 50 75 100 125
T_A − Free-Air Temperature − °C
Figure 9
−1.45
−75 −50 −25 0 25 50 75 100 125
T_A − Free-Air Temperature − °C
Figure 10
EQUIVALENT INPUT NOISE VOLTAGE
vs
FREQUENCY
260
I_O = 10 mA
240 ^TA ^{= 25°C}
220
200
180
160
140
120
100
10
100
1k
10 k
f − Frequency − Hz
Figure 11
100 k
† _{Data at high and low temperatures is applicable only within the recommended operating free-air temperature ranges of the various devices.}
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