Datasheet

TLV431, TLV431A, TLV431B
LOW-VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATOR
SLVS139T − JULY 1996 − REVISED JUNE 2007
14
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
0246
t − Time − s
EQUIVALENT INPUT NOISE VOLTAGE
OVER A 10-s PERIOD
810
10
8
6
4
2
0
−2
−4
−6
−8
−10
f = 0.1 Hz to 10 Hz
I
K
= 1 mA
T
A
= 25°C
− Equivalent Input Noise Voltage −
V
n
Vµ
_
+
1 µF
750 Ω
1 kΩ
470 µF
3 V
TLV431
or
TLV431A
or
TLV431B
33 kΩ
TLE2027
TEST CIRCUIT FOR 0.1-Hz TO 10-Hz EQUIVALENT NOISE VOLTAGE
+
33 kΩ
10 kΩ
_
+
16 Ω
0.1 µF
160 kΩ
820 Ω
+
2200 µF
TP
2.2 µF
CRO
1 MΩ
TLE2027
0.47 µF
10 kΩ
+
Figure 12