Diodes TL432 - Manual (Page 6)

TL431/TL432
ADJUSTABLE PRECISION SHUNT REGULATOR
TL431 *SO-8 is a future package
Document number: DS35044 Rev. 6 - 2
6 of 14
www.diodes.com
April 2012
© Diodes Incorporated
Typical Performance Characteristics (cont.)
200
220
240
260
280
300
320
340
360
380
400
10 100 1K 10K 100K
f- Frequency (Hz)
Equivalent Input Noise Voltage vs. Frequency
V
=
E
qu
iv
al
e
nt
I
n
put
N
oi
s
e
V
o
ltag
e nV
/
H
z
N
√
I = 10mA
V = V
T = 25°C
KA
KA REF
A
-15
-10
-5
0
5
10
15
0 1 2 3 4 5 6 7 8 9 10
Time (Seconds)
Equivalent Input Noise Voltage Over A 10-S Period
V
n
-
E
q
u
iv
a
lent I
npu
t
N
oi
se
V
o
ltag
e -
V
μ
I = 10mA
V = V
T = 25 C
KA
KA REF
A
°
Figure 4. Test circuit for noise input voltage