AME
Adjustable Precision
Shunt Regulator
AME431B-1.24V
nElectrical Specifications
TA = 250C, IREF=10mA unless otherwise specified
Test
Parameter
Test Condition
Symbol
Min
Typ Max Units
Circuit
0.5%
1.0%
1.234 1.240 1.246
1.228 1.240 1.252
Reference Voltage
1
VREF
VKA - VREF, IKA=10mA
0oC ~ +70oC
V
-
-
2
3
10
10
VKA = VREF
Deviation of Reference Voltge Over
Temperature
1
2
DVREF
mV
-40oC ~ +85oC
DVKA
5V to VREF
DVKA
16V to 5V
IKA=10mA
R1=10KW, R2=
IKA=10mA
=
-
-
-0.5 -1.5
-0.5 -1.5
Ratio of Change in Reference
Voltage to the Change in Cathode
Voltage
DVREF
DVKA
IKA=10mA
mV/V
=
Reference Input Current
2
2
IREF
-
-
0.15
0.1
0.4
0.4
mA
mA
¥
R1=10KW, R2=
¥
Deviation of Reference Current
Over Full Temperature Range
DIREF
IKA=10mA
TA= -40oC ~ +85oC
Minimum Cathode Current for
Regulation
IKA
1
3
VKA=VREF
-
-
55
80
mA
mA
(MIN)
IKA
Off-State Cathode Current
Dynamic Impendance
VKA=18V, VREF=0V
0.04
0.1
(OFF)
VKA = VREF, IKA=1 to 100mA
F<1KHz
1
ZKA
-
0.05 0.15
W
10
Rev.E.04
AME [ ANALOG MICROELECTRONICS ]
