Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
Electrical Characteristics for AZ431(20V)
Operating Conditions: TA=25oC unless otherwise specified.
Parameter
Reference Voltage
0.4%
0.8%
Deviation of Reference Voltage
Over-Temperature
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
Test
Circuit
Symbol
Conditions
4
VREF VKA=VREF, IKA=10mA
4
∆VREF
VKA=VREF
IKA=10mA
0 to 70oC
-40 to 85oC
∆ VKA=
5
∆VREF
∆VKA
IKA=10mA
10V to VREF
∆VKA=
18V to 10V
5
IREF IKA=10mA, R1=10KΩ, R2=∞
5
∆IREF
IKA=10mA, R1=10KΩ,R2=∞
TA=-40 to 85oC
4
IKA
(MIN)
VKA=VREF
6
IKA
(OFF)
VKA=18V, VREF=0
4
ZKA
VKA=VREF, IKA=1 to 100mA
f ≤ 1.0KHz
AZ431
AZ431 (20V)
Unit
Min Typ Max
2.490 2.500 2.510
V
2.480 2.500 2.520
4.5 8
mV
4.5 10
-1.0 -2.7
mV/V
-0.5 -2.0
0.7 4 µ A
0.4 1.2 µ A
0.4 1.0 mA
0.05 1.0 µ A
0.2 0.5 Ω
Apr. 2005 Rev. 1. 7
BCD Semiconductor Manufacturing Limited
7