TL431-Q1 Datasheet, PDF (9/26 Pages) Texas Instruments – ADJUSTABLE PRECISION SHUNT REGULATOR

19.1 V
1 kΩ
TL431−Q1
ADJUSTABLE PRECISION SHUNT REGULATOR
SGLS302D − MARCH 2005 − REVISED MARCH 2013
TYPICAL CHARACTERISTICS
EQUIVALENT INPUT NOISE VOLTAGE
OVER A 10-S PERIOD
6
5
4
3
2
1
0
−1
−2
−3
−4 f = 0.1 to 10 Hz
−5
I_KA = 10 mA
T_A = 25°C
−6
0 1 2 3 4 5 6 7 8 9 10
t − Time − s
500 μF
910 Ω
2000 μF
TL431
(DUT)
820 Ω
16 Ω
V_CC
TLE2027
+ ^{AV = 10 V/mV}
−
16 kΩ
160 kΩ
0.1 μF
1 μF
V_CC
16 kΩ
1 μF
+
−
33 kΩ
33 kΩ
TLE2027 ^{22 μF}
A_V = 2 V/V
V_EE
V_EE
Figure 12. Test Circuit for Equivalent Input Noise Voltage
To
Oscilloscope
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