Datasheet

TL431−Q1
ADJUSTABLE PRECISION SHUNT REGULATOR
SGLS302D − MARCH 2005 − REVISED MARCH 2013
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
19.1 V
V
CC
TLE2027
TLE2027
A
V
= 10 V/mV
V
EE
0.1 μF
160 kΩ
820 Ω
(DUT)
TL431
16 Ω
910 Ω
2000 μF
1 kΩ
V
EE
V
CC
1 μF
16 kΩ 16 kΩ
1 μF
33 kΩ
33 kΩ
A
V
= 2 V/V
22 μF
500 μF
To
Oscilloscope
−1
−2
−4
−5
−6
3
−3
0123456
1
0
2
EQUIVALENT INPUT NOISE VOLTAGE
OVER A 10-S PERIOD
4
78910
5
6
t − Time − s
f = 0.1 to 10 Hz
I
KA
= 10 mA
T
A
= 25°C
− Equivalent Input Noise Voltage − μV
V
n
+
−
+
−
Figure 12. Test Circuit for Equivalent Input Noise Voltage