Parameter, Test, Circuit – Diodes AN431 User Manual
Page 5: Symbol, Conditions, Unit, Reference voltage, Vref, Vka=vref, ika=10ma, Dvref
Data Sheet
5
Dec. 2012 Rev. 2. 0
BCD Semiconductor Manufacturing Limited
ADJUSTABLE PRECISION SHUNT REGULATORS AN431
Parameter
Test
Circuit
Symbol
Conditions
Min
Typ
Max
Unit
Reference Voltage
0.5%
4
V
REF
V
KA
=V
REF,
I
KA
=10mA
2.487
2.500
2.512
V
1.0%
2.475
2.500
2.525
Deviation of Reference Voltage
Over Full Temperature Range
4
ΔV
REF
V
KA
=V
REF
I
KA
=10mA
0 to 70
o
C
4.5
8
mV
-40 to 85
o
C
4.5
10
-40 to 125
o
C
4.5
16
Ratio of Change in Reference
Voltage to the Change in
Cathode Voltage
5
ΔV
REF
ΔV
KA
I
KA
=10mA
ΔV
KA
=
10V to V
REF
-1.0
-2.7
mV/V
ΔV
KA
=
36V to 10V
-0.5
-2.0
Reference Current
5
I
REF
I
KA
=10mA, R1=10K
Ω, R2=∞
0.7
4
μA
Deviation of Reference Current
Over Full Temperature Range
5
ΔI
REF
I
KA
=10mA, R1=10K
Ω
R2=
∞, T
A
=-40 to 125
o
C
0.4
1.2
μA
Minimum Cathode Current for
Regulation
4
I
KA
(Min)
V
KA
=V
REF
0.4
1.0
mA
Off-state Cathode Current
6
I
KA
(Off)
V
KA
=36V, V
REF
=0
0.05
1.0
μA
Dynamic Impedance
4
Z
KA
V
KA
=V
REF
, I
KA
=1 to 100mA,
f
≤ 1.0kHz
0.15
0.5
Ω
Thermal Resistance
θ
JC
SOT-23
135
o
C/W
Electrical Characteristics
Operating Conditions: T
A
=25
o
C, unless otherwise specified.