Diodes ZR431 - Manual (Page 5)

ZR431
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
ZR431
Document number: DS33255 Rev. 6 - 2
5 of 9
www.diodes.com
October 2011
© Diodes Incorporated
ADVAN
CE I
N
F
O
RM
ATI
O
N
Typical Characteristics (cont.)
I
Z
= 10mA, T
A
= 25°C
Test Circuit for Open Loop Voltage Gain
T
A
= 25°C
Test Circuit for Pulse Response
V
REF
< V
Z
< 20, I
Z
= 10mA, T
A
= 25°C
Test Circuit for Stability Boundary Conditions
100 1k 10k 100k 1M
FREQUENCY (Hz)
Gain vs. Frequency
0
20
40
60
O
P
EN L
O
O
P
V
O
L
T
A
G
E
G
AI
N (
d
B)
0 0.2 0.4 0.6 0.8 1.0
TIME (µs)
Pulse Response
0
0
5.0
1.0
2.0
3.0
V
O
L
T
A
G
E SW
IN
G
(V
)
Repetitive Pulse
Single Pulse V
Z
INPUT
10p 100p 1000p 0.01µ 0.1µ 1µ
LOAD CAPACITANCE (F)
Stability Boundary Conditions
0
20
40
60
80
100
C
A
T
H
O
DE
C
U
R
R
E
N
T
(mA
)
STABLE
STABLE
V
Z
230
I
Z
15k
9µF
8k25
+
-
220 V
Z
50
Input Monitor
Pulse
Generator
Input 150
I
Z
10k
V
Z