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ZTL431BFTA
P1-P3
P4-P6
P7-P9
P10-P10
ZTL431/ZT
L432
Document
number: DS
33263 Re
v. 17 - 2
4 of 10
www.diodes.com
August 2015
© Diodes Incorporat
ed
ZTL431/ZTL432
Typical Characteristics
(continued)
I
KA
I
KA
I
KA
V
KA
V
KA
V
REF
<V
KA
<2
0
,I
KA
=1
0
m
A
,T
A
=2
5
°
C
V
KA
V
KA
Stabi
li
ty
Boundary
Condi
tion
0
10
20
30
40
50
60
70
80
90
100
10.0E-12
100.0E-12
1.0E-9
10.0E-9
100.0E-9
1.0E-6
Load Capacitance (F)
Cathod
eC
u
r
re
n
t(
mA)
Gain vs. Frequency
0
10
20
30
40
50
60
100
1000
10000
100000
1000000
Frequency (Hz)
Gain (dB)
Stable
a
b
b
e
e
Stable
Pulse Response
T
est
C
i
rcui
t
f
or
S
t
abil
t
y
Boundary
Condi
ti
ons
T
est Circuit for Pulse Response
T
est Ci
rcui
t f
or Open
Loop
V
oltage
Gain
ZTL431/ZT
L432
Document
number: DS
33263 Re
v. 17 - 2
5 of 10
www.diodes.com
August 2015
© Diodes Incorporat
ed
ZTL431/ZTL432
A
pplication Circuits
V
ON
~
2V
V
OFF
=V
+
V
TH
=2
.
5
V
Output
V+
Input
R1
R2
V
OUT
V
OUT
V+
V
REF
V
REF
R1
R2
V
OUT
V
OUT
V+
V
REF
V
REF
R1
R2
V
OUT
V
OUT
V+
V
REF
V
REF
V
OUT(MIN)
=V
REF
+V
REG
In
Out
Common
ZSR***
0.01
μ
F
30
R1
R2
V
REF
V+
V
OUT
V
OUT
V
REF
R1
R1
R2b
R2a
V
REF
V
REF
V
REF
V
REF
V+
Outpu
t
Shunt regulator
Output control of a three
terminal fixed regulator
Single supply comparator
with temperature
compensated threshold
Higher current shunt
regulator
Series regulator
Over voltage / under voltage
protection circuit
ZTL431/ZT
L432
Document
number: DS
33263 Re
v. 17 - 2
6 of 10
www.diodes.com
August 2015
© Diodes Incorporat
ed
ZTL431/ZTL432
DC Test Circuits
Notes
Deviation of reference input voltage, Vdev, is defined as the
maximum variation of the refer
ence input voltage over the full
temperature range.
The average temperature c
oefficient of the reference input
voltage,
V
REF
is defined as:
V
REF
(pp
m
/°C)
=
V
DEV
u
1,000,000
V
REF
(T1-T2)
The dynamic output impedance, R
z
, is de
fined a
s:
R
Z
=
V
Z
I
Z
When the device is programmed with two external resistors, R1
and R2, (
Figure
2), the dynamic output impedance of the
overall circuit, R'
z
, is de
fined a
s:
R'
Z
= R
Z
(1 + R1
)
R2
Stability Boundary
The ZTL431 and ZTL432 are st
able w
it
h a range of capacitive
loads. A zone of instability exists as dem
onstrated in the typical
characteristic graph on page
4
. The graph shows typical
conditions. To ensure reliable
stability
,
a capacitor of 4.7nF or
greater is recommended bet
ween anode and cathode.
P1-P3
P4-P6
P7-P9
P10-P10
ZTL431BFTA
Mfr. #:
Buy ZTL431BFTA
Manufacturer:
Diodes Incorporated
Description:
Voltage References 0.5% 2V5 COST EFFCTV
Lifecycle:
New from this manufacturer.
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