參數(shù)資料
型號： ZHT431(2)
文件頁數(shù)： 2/7頁
文件大?。?/td> 221K
代理商： ZHT431(2)
ZHT431
ABSOLUTE MAXIMUM RATING
Cathode Voltage (V
Z
)
Cathode Current
Operating Temperature
Storage Temperature
Recommended Operating Conditions
20V
150mA
-55 to 125°C
-55 to 150°C
Min
Vref
50
μ
A
Max
20V
100mA
Cathode Voltage
Cathode Current
Power Dissipation (T
amb
=25°C)
(T
jmax
= 150°C)
SOT23
TO92
SOT223
330mW
780mW
2W
ELECTRICAL CHARACTERISTICS TEST CONDITIONS (Unless otherwise stated):T
amb
=25°C
SYMBOL
VALUE
MIN
TYP MAX
PARAMETER
UNITS CONDITIONS
Reference Voltage 2%
1%
V
ref
2.45
2.475
2.50
2.50
2.55
2.525
V
I
L
=10mA (Fig1), V
Z
=V
ref
Deviation of Reference Input
Voltage over Temperature
V
dev
10
30
mV
I
L
=10mA, V
Z
=V
ref
T
a
=full range (Fig1)
V
Z
from V
ref
to 10V
I
Z
=10mA (Fig2)
V
Z
from 10V to 20V
I
Z
=10mA (Fig2)
R1=10k, R2=O/C, l
L
=10mA
(Fig2)
Ratio of the change in
Reference Voltage to the
Change in Cathode
Voltage
V
ref
V
Z
-1.85 -2.7
mV/V
-1.0
-2.0
mV/V
Reference Input Current
I
ref
0.12 1.0
μ
A
Deviation of Reference Input
Current over Temperature
I
ref
0.04 0.2
μ
A
R1=10k, R2=O/C, I
L
=10mA
T
a
=full range (Fig2)
V
Z
=V
ref
(Fig1)
Minimum Cathode
Current for Regulation
I
Zmin
35
50
μ
A
Off-state Current
I
Zoff
0.1
μ
A
V
Z
=20V, V
ref
=0V(Fig3)
V
Z
=V
ref
(Fig1), f=0Hz,
I
C
=1mA to 100mA
Dynamic Output Impedance R
Z
0.75
Deviation of reference input voltage, V
dev,
is defined as the maximum variation of the reference
input voltage over the full temperature range.
The average temperature coefficient of the reference input voltage, V
ref
is defined as:
V
ref
(
ppm
°
C
)=
V
dev
x
1000000
V
ref
(
T
1
T
2
)
The dynamic output impedance, Rz, is defined as:
R
Z
=
V
Z
I
Z
When the device is programmed with two external
resistors, R1 and R2, (fig 2) , the dynamic output
impedance of the overall circuit, R
’
, is defined as:
R
’
=
R
z
(
1
+
R
1
R
2
)
Vmax
min
T1
T2
Vdev
=
Vmax
-
Vmin
Temperature
4-29
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參數(shù)描述
ZHT431C01 制造商:ZETEX 制造商全稱:ZETEX 功能描述:ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
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ZHT431C02 制造商:ZETEX 制造商全稱:ZETEX 功能描述:ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
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