AUK A431XM

A431xM
Semiconductor
Programmable Voltage Reference
Features
•
•
•
•
•
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Programmable output voltage to 20 volts
Sink current capability of 1.0mA to 100mA
Low dynamic impedance 0.15Ω typical
Temperature compensated for operation over full rated operating temperature
Equivalent full-range temperature coefficient of 50ppm/°C (Typical)
Low output Noise voltage
Ordering Information
Type NO.
Marking
A431xM
A431□
Package Code
TO-92M
□: Grade => B :±0.5% , A :±1%
Outline Dimensions
unit : mm
Symbol
3.0±0.1
4.0±0.1
0.44 REF
14.0±0.40
0.52 REF
Functional block diagram
1.27 Typ.
2.54±0.1.
3.0±0.1
3.8 Min.
0.42 Typ.
0.7 Typ.
1 2 3
PIN Connections
1. Reference
2. Anode
3. Cathode
KSI-9039-003
1
A431xM
Absolute maximum ratings
(Operating ambient temperature range applies unless other specified)
Parameter
Symbol
Ratings
Unit
Cathode to Anode voltage
VKA
20
V
Cathode current range
IKA
-100 ~+150
mA
Reference input current range
Iref
-0.05~+10
mA
Power dissipation
PD
500
mW
Operating temperature range
Topr
-40~+85
°C
Storage temperature range
Tstg
-65~+150
°C
Recommended operating conditions
Parameter
Symbol
Ratings
Min.
Max.
Unit
Cathode to Anode voltage
VKA
Vref
18
V
Cathode current range
IKA
1.0
100
mA
Electrical Characteristics
(Ambient temperature at 25°C, unless otherwise noted.)
Parameter
Symbol
Reference input voltage
(Fig. 1, Note 1)
Deviation of reference input voltage
Over temperature(Fig. 1, Note 1,2)
Ratio of change in reference input
Voltage to the change in cathode
Voltage(Fig. 2)
Vref
∆Vref
∆Vref
∆VKA
Reference input current(Fig. 2)
Iref
Deviation of reference input current
over temperature(Fig. 2)
Minimum cathode current for
Regulation(Fig. 1)
∆Iref
Condition
Min.
Typ.
Max.
Unit
A431BM
VKA=Vref,
IKA=10mA
A431AM
VKA=Vref , IKA=10mA
@Ta=TLOW to THIGH
IKA=10mA
∆VKA=10V-Vref
∆VKA=20V-10V
IKA=10mA
R1=10KΩ, R2=∞
IKA=10mA
R1=10KΩ, R2=∞
2.482
2.470
2.495
2.508
2.520
V
-
7.0
30
mV
-
1.2
0.7
2.7
2.0
mV/V
-
1.8
4.0
µA
-
0.4
2.5
µA
IMIN
VKA=Vref
-
0.35
1.0
mA
Off-state cathode current(Fig. 3)
IOFF
VKA=20V, Vref=0V
-
2.7
1000
nA
Dynamic impedance(Fig. 1, Note 3)
ZKA
VKA=Vref, f≤1.0KHz
IKA=1.0mA-100mA
-
0.14
0.5
Ω
Fig. 1
Fig. 2
Fig. 3
<Note 1> : TLOW=-40°C, THIGH=+85°C , <Note 2> : ∆Vref= Vref Max. - Vref Min. , <Note 3> : ZKA= ∆VKA/ ∆IKA
KSI-9039-003
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A431xM
Characteristic diagrams
Fig. 4 IKA vs. VKA
Fig. 6 ∆V ref vs. Ta
Fig. 5 IMIN vs. VKA
Fig. 7 Gv vs. frequency
Fig. 8 Pulse response
KSI-9039-003
3
A431xM
These AUK products are intended for usage in general electronic equipments(Office and
communication equipment, measuring equipment, domestic electrification, etc.).
Please make sure that you consult with us before you use these AUK products in equipments which require high quality and/or reliability, and in equipments which could have
major impact to the welfare of human life(atomic energy control, airplane, spaceship, traffic
signal, combustion central, all types of safety device, etc.).
AUK cannot accept liability to any damage which may occur in case these AUK products
were used in the mentioned equipments without prior consultation with AUK.
KSI-9039-003
4