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AS431 Datasheet PDF : 20 Pages
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AS431
Electrical Characteristics (Operating Conditions: TA = +25°C, unless otherwise specified.)
Symbol
VREF
Parameter
Reference Voltage
0.5%
1.0%
∆VREF
Deviation of Reference Voltage
Over Full Temperature Range
∆VREF
∆VKA
IREF
∆IREF
IKA
(Min)
IKA
(Off)
ZKA
Ratio of Change in Reference
Voltage to the Change in Cathode
Voltage
Reference Current
Deviation of Reference Current
Over Full Temperature Range
Minimum Cathode Current for
Regulation
Off-state Cathode Current
Dynamic Impedance
θJC
Thermal Resistance
Test
Circuit
Conditions
4
VKA = VREF, IKA = 10mA
0 to +70°C
4
VKA = VREF,
-40 to +85°C
IKA = 10mA
-40 to +125°C
∆VKA = 10V to VREF
5
IKA = 10mA
∆VKA = 36V to 10V
5
IKA = 10mA, R1 = 10kΩ, R2 = ∞
5
IKA = 10mA, R1 = 10kΩ, R2 = ∞,
TA = -40 to +125°C
4
VKA = VREF
6
VKA = 36V, VREF = 0
4
VKA = VREF, IKA = 1 to 100mA,
f ≤ 1.0kHz
SOT23
SOT25
—
TO92 (Ammo Packing)
SOT89
Min Typ Max Unit
2.487
2.475
—
—
—
—
—
—
—
2.500
2.500
4.5
4.5
4.5
-1.0
-0.5
0.7
0.4
2.512
2.525
8
10
16
-2.7
-2.0
4
1.2
V
mV
mV/V
µA
µA
—
0.4
1.0
mA
—
0.05
1.0
µA
—
0.15
0.5
Ω
—
135.9
—
—
135.9
—
°C/W
—
81.9
—
—
29.8
—
AS431
Document number: DS36599 Rev. 4 - 2
5 of 20
www.diodes.com
May 2018
© Diodes Incorporated
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