Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431-B
Electrical Characteristics
o
Operating Conditions: T =25 C, unless otherwise specified.
A
Test
Circuit
Parameter
Symbol
Conditions
=10mA
Min
Typ
Max
Unit
0.4%
0.8%
2.490
2.480
2.500
2.500
4.5
2.510
2.520
8
VREF VKA=VREF, KA
I
Reference Voltage
4
V
0 to 70oC
VKA=VREF
IKA= 10mA
Deviation of Reference Voltage
Over Full Temperature Range
-40 to 85oC
-40 to 125oC
∆VREF
4
5
4.5
4.5
10
16
mV
∆VKA
10V to VREF
∆VKA
18V to 10V
=
-1.0
-2.7
Ratio of Change in Reference
Voltage to the Change in
Cathode Voltage
∆VREF
∆VKA
mV/
V
IKA=10mA
=
-0.5
0.7
-2.0
4
IREF
IKA=10mA, R1=10KΩ, R2=∞
Reference Current
5
5
µA
µA
IKA=10mA, R1=10KΩ, R2=∞
TA=-40 to 125oC
Deviation of Reference Current
Over Full Temperature Range
∆IREF
0.4
0.4
1.2
1.0
IKA
Minimum Cathode Current for
Regulation
VKA=VREF
4
6
4
mA
µA
Ω
(Min)
IKA
VKA=18V, VREF=0
Off-state Cathode Current
Dynamic Impedance
0.05
0.2
1.0
0.5
(Off)
VKA=VREF, IKA=1 to 100mA
ZKA
f ≤ 1.0KHz
Mar. 2007 Rev. 2. 4
BCD Semiconductor Manufacturing Limited
5
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
