AS431 View Datasheet(PDF) - Astec Semiconductor => Silicon Link
Part Name
Description
Manufacturer
AS431 Datasheet PDF : 8 Pages
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Precision Adjustable Shunt Reference
AS431
Electrical Characteristics
Electrical Characteristics are guaranteed over full junction temperature range (0 to 105¡C). Ambient temperature must be derated based
on power dissipation and package thermal characteristics. The conditions are: VKA = VREF and IK = 10 mA unless otherwise stated.
Parameter
Reference Voltage
ÆVREF with Temp*
Ratio of Change in
VREF to Cathode
Voltage
Reference Input
Current
IREF Temp Deviation
Min IK for Regulation
Off State Leakage
Dynamic Output
Impedance
Symbol
VREF
TC
ÆVREF
ÆVK
IREF
Test
Condition
TA = 25¡C
Over temp.
VREF to 10 V
10 V to 36 V
AS431 (0.25%)
Min. Typ. Max.
2.496 2.503 2.509
2.475
2.530
0.07 0.20
Ð2.7 Ð1.0
AS431 (0.5%)
Min. Typ. Max.
2.490 2.503 2.515
2.469
2.536
0.07 0.20
Ð2.7 Ð1.0
Ð2.0 Ð0.4 0.3
0.7 4
Ð2.0 Ð0.4 0.3
0.7 4
Unit
V
V
mV/¡C
Test
Circuit
1
1
1
mV/V
2
µA
2
ÆIREF
IK(min)
IK(off)
ZKA
Over temp.
VREF = 0 V,
VKA = 36 V
f ² 1 kHz
IK = 1 to 150 mA
0.4 1.2
0.4 1
0.04 250
0.15 0.5
0.4 1.2
µA
2
0.4 1
mA
1
0.04 250
nA
3
0.15 0.5
½
1
Parameter
Symbol
Test
Condition
AS431 (1.0%)
Min. Typ. Max.
Reference Voltage
VREF
TA = 25¡C
Over temp.
2.470 2.495 2.520
2.449
2.541
ÆVREF with Temp*
Ratio of Change in
VREF to Cathode
Voltage
TC
ÆVREF
ÆVK
VREF to 10 V
10 V to 36 V
0.07 0.20
Ð2.7 Ð1.0
Ð2.0 Ð0.4 0.3
Reference Input
IREF
Current
0.7 4
IREF Temp Deviation
ÆIREF Over temp.
0.4 1.2
Min IK for Regulation
IK(min)
0.4 1
Off State Leakage
IK(off)
VREF = 0 V,
VKA = 36 V
0.04 250
Dynamic Output
Impedance
ZKA
f ² 1 kHz
IK = 1 to 150 mA
0.15 0.5
*Calculating Average Temperature Coefficient (TC). Refer to following page.
AS431 (2.0%)
Min. Typ. Max.
2.440 2.490 2.550
2.430
2.569
0.07 0.20
Ð2.7 Ð1.0
Ð2.0 Ð0.4 0.3
0.7 4
0.4 1.2
0.4 1
0.04 250
0.15 0.5
Unit
V
V
mV/¡C
Test
Circuit
1
1
1
mV/V
2
µA
2
µA
2
mA
1
nA
3
½
1
ASTEC Semiconductor
3
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