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Datasheet> All Categories > Power/power management> The power supply circuit> KIA431M2RTK/H
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KIA431M2RTK/H

Description
Three Terminal Voltage Reference, 1 Output, 2.495V, BIPolar, PDSO3, HALOGEN FREE, SOT-23, 3 PIN
CategoryPower/power management    The power supply circuit   
File Size399KB，8 Pages
ManufacturerKEC
Websitehttp://www.keccorp.com/
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KIA431M2RTK/H Overview

Three Terminal Voltage Reference, 1 Output, 2.495V, BIPolar, PDSO3, HALOGEN FREE, SOT-23, 3 PIN

KIA431M2RTK/H Parametric

Parameter NameAttribute value
MakerKEC
Parts packaging codeSOT-23
package instructionLSSOP,
Contacts3
Reach Compliance Codeunknown
ECCN codeEAR99
Analog Integrated Circuits - Other TypesTHREE TERMINAL VOLTAGE REFERENCE
JESD-30 codeR-PDSO-G3
length2.93 mm
Number of functions1
Output times1
Number of terminals3
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Maximum output voltage36 V
Minimum output voltage2.44 V
Nominal output voltage2.495 V
Package body materialPLASTIC/EPOXY
encapsulated codeLSSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Maximum seat height1.3 mm
Maximum supply voltage (Vsup)2.55 V
Minimum supply voltage (Vsup)2.44 V
Nominal supply voltage (Vsup)2.495 V
surface mountYES
technologyBIPOLAR
Maximum voltage temperature coefficient888 ppm/°C
Temperature levelINDUSTRIAL
Terminal formGULL WING
Terminal pitch0.95 mm
Terminal locationDUAL
Fine-tuning/adjustable outputNO
width1.3 mm

KIA431M2RTK/H Preview

SEMICONDUCTOR
TECHNICAL DATA
PROGRAMMABLE PRECISION REFERENCES
KIA431 Series
BIPOLAR LINEAR INTEGRATED CIRCUIT
The KIA431 Series integrated circuits are three-terminal programmable shunt regulator diodes.
These monolithic IC voltage reference operate as a low temperature coefficient zener which is programmable from V
ref
to 36 volts with two external resistors. These devices exhibit a wide operating current range of 1.0 to 100mA with a
typical dynamic impedance of 0.22Ω.The characteristics of these references make them excellent replacements for
zener diodes in many applications such as digital voltmeters, power supplies, and op amp circuitry. The 2.5 volt
reference makes it convenient to obtain a stable reference from 5.0 volt logic supplies, and since the KIA431 Series
operates as a shunt regulator, it can be used as either a positive or negative voltage reference.
FEATURES
・Divice
Code Name :KIA431 + V
ref
Code + Package Code+Pin Configuration Code
ITEM
Code
Blank
A
B
V
ref
Code
Tolerance (%)
±2.2
±1.0
±0.5
Package Code
Code
Blank
F
S
T
M
Package
TO-92
SOT-89
TSM
TSV
SOT-23
Pin Configuration Code (SOT-23 Only)
Code
Blank
2
Type
A
B
KIA431
・Low
Dynamic Output Impedance : 0.22Ω(Typ.).
・Sink
Current Capability of 1.0 to 100mA.
・Equivalent
Full-Range Temperature Coefficient of 50ppm/℃ (Typ.).
・Temperature
Compensated for Operation Over Full Rated Operating Temperature Range.
・Low
Output Noise Voltage.
・Qualified
to AEC-Q101.
LINE UP
Type No.
KIA431
KIA431A
KIA431B
KIA431F
KIA431AF
KIA431BF
KIA431T
KIA431AT
KIA431BT
KIA431S
KIA431AS
KIA431BS
KIA431M
KIA431AM
KIA431BM
KIA431M2
KIA431AM2
KIA431BM2
* KIA431BT
(Tolerance : 0.5% , TSV package) : Under Development
SOT-23
(B-Type)
SOT-23
(A-Type)
2.5~36
TSM
TSV
SOT-89
3A
3B
3C
43C
43A
43B
43C
43A
43B
43C
43A
43B
43F
43D
43E
TO-92
Operating Voltage(V)
Package
Marking
PIN CONFIGURATION (SOT-23)
3
3
TOP
VIEW
1
2
2
1
A-Type : 1. Cathode 2. Ref 3. Anode
B-Type : 1. Ref 2. Cathode 3. Anode
2012. 3. 20
Revision No : 16
1/8
KIA431 Series
BLOCK DIAGRAM
Cathode (K)
Reference (R)
+
-
Cathode (K)
Reference (R)
2.5V
ref
Anode (A)
Anode (A)
ORDERING INFORMATION
K IA4 31
Pb-Free / Halogen-Free
Packing Specification
Pin configuration (SOT-23 Only)
Package code
V
ref
Tolerance code
V
ref
Tolerance code
Blank
A
B
±2.2%
±1.0%
±0.5%
Package Code
Blank
F
S
T
M
TO-92
SOT-89
TO-92
SOT-89
TSM
TSV
SOT-23
Pin Configuration (SOT-23 Only)
Blank
2
A-Type
B-Type
Pb-Free / Halogen-Free
P
H
Pb-Free
Halogen-Free
AT : Taping of AMMO PACK type
RTF : RTF type
RTK : RTK type
RTK : RTK type
Packing Specification
TSM / SOT-23
TSV
2012. 3. 20
Revision No : 16
2/8
KIA431 Series
MAXIMUM RATINGS (Ta=25℃)
(Full operating ambient temperature range applies unless otherwise noted.)
CHARACTERISTIC
Cathode To Anode Voltage
Cathode Current Range, Continuous
Reference Input Current Range, Continuous
Operating Junction Temperature
Operating Temperature
Storage Temperature
KIA431
KIA431F
Total Power Dissipation
KIA431M
KIA431S
KIA431T
Note1) Package mounted on 99.5% Alumina 10×8×0.6mm
Note2) Package mounted on a ceramic board. (600㎣×0.8㎜ )
(Note1)
(Note2)
P
D
SYMBOL
V
KA
I
K
I
ref
T
j
T
opr
T
stg
RATING
37
-100½150
-0.05½10
150
-40½85
-65½150
700
800
350
900
550
mW
UNIT
V
mA
mA
℃
℃
℃
ELECTRICAL CHARACTERISTICS (Ta=25℃)
CHARACTERISTICS
KIA431
Reference Input
Voltage
Reference Input Voltage
Deviation Over Temperature Range
Ratio of Change in Reference Input
Voltage to Change in Cathode to
Anode Voltage
Ta=25℃
Reference Input Current
Ta=T
opr
Reference Input Current
Deviation Over Temperature Range
Minimum Cathode Current For Regulation
Off-State Cathode Current
Dynamic Impedance
ΔI
ref
I
min
I
off
Z
ka
Figure 2
Figure 1
Figure 3
Figure 1
(Note 2)
I
ref
Figure 2
I
K
=10mA, R1=10kΩ, R2=∞
-
I
K
=10mA, R1=10kΩ, R2=∞
V
KA
=V
ref
V
KA
=36V, V
ref
=0V
V
KA
=V
ref
, I
K
=1.0½100mA,
f≦1.0kHz
-
-
-
-
-
0.8
0.5
2.6
0.22
6.5
2.5
1.0
1000
-
μ
A
mA
nA
Ω
KIA431A
KIA431B
ΔV
ref
Figure 1
(Note 1)
V
KA
=V
ref
, I
K
=10mA
ΔV
KA
=
ΔV
ref
/
ΔV
KA
Figure 2
I
K
=10mA
10V½V
ref
ΔV
KA
=
36V½10V
-
1.8
4.0
μ
A
V
ref
Figure 1
V
KA
=V
ref
, I
K
=10mA
SYMBOL
TEST
CIRCUIT
TEST CONDITION
MIN.
2.440
2.470
2.4825
-
-
-
TYP.
2.495
2.495
2.495
7.0
-1.4
-1.0
MAX.
2.550
2.520
2.5075
30
-2.7
mV/V
-2.0
UNIT
V
V
V
mV
2012. 3. 20
Revision No : 16
3/8
KIA431 Series
FIGURE 1-TEST CIRCUIT FOR V
KA
=
V
ref
Input
I
K
V
KA
FIGURE 3-TEST CIRCUIT FOR I
off
Input
I
off
V
KA
V
ref
FIGURE 2-TEST CIRCUIT FOR V
KA
>
V
ref
Input
I
K
R1
I
ref
V
KA
= V
ref
( 1+
R1
) + I
ref
R2
Example :
ΔV
ref
= 8.0mV and slope is positive,
V
ref
at 25℃=2.495V,
ΔTa=70℃
V
KA
α
ref
=
V
R1
0.008×10
6
70×(2.495)
= 45.8 ppm/℃
Note 2: The dynamic impedance Z
ka
is defined as:
|Z
ka
| =
ΔVKA
ΔIk
R2
V
ref
When the device is programmed with two external
Note 1:
The deviation parameter
ΔV
ref
is defined as the differences
between the maximum and minimum values obtained over the
full operating ambient temperature range that applies.
|Z
ka’
| = |Z
ka
| (1+
R1
R2
)
resistors, R1 and R2, (refer to Figure 2) the total
dynamic impedance of the circuit is defined as:
V
ref
Max.
V
ref
= V
ref (Max.)
-
V
ref
(Min.)
Ta = T
2
- T
1
V
ref
Min.
T1
T2
AMBIENT TEMPERATURE
The average temperature coefficient of the Reference
input voltage,
ΔV
ref
, is defined as:
(
V
α
ref
(
ppm
℃
)=
ΔV
ref
V
ref
at 25℃
ΔTa
ΔV
ref
×
10
6
ΔTa(V
ref
at 25℃)
)
×
10
6
=
α
ref
can be positive or negative depending on whether
V
V
ref
Min. or V
ref
Max. occurs at the lower ambient temperature.
2012. 3. 20
Revision No : 16
4/8
KIA431 Series
I
K
- V
KA
CATHODE CURRENT I
K
(mA)
150
CATHODE CURRENT I
K
(µA)
V
KA
=V
ref
Ta=25 C
I
K
- V
KA
800
600
V
KA
=V
ref
Ta=25 C
100
50
0
-50
-100
-2.0
-1.0
0
1.0
2.0
3.0
400
200
0
-200
-1.0
0
1.0
2.0
3.0
CATHODE VOLTAGE V
KA
(V)
DYNAMIC IMPEDANCE Zka (Ω)
CATHODE VOLTAGE V
KA
(V)
Zka
V
ref
- V
KA
CHANGE IN REFERENCE INPUT
VOLTAGE V (mV)
ref
0
I
K
=10mA
Ta=25 C
- f
100
I
K
=1.0mA~100mA
Ta=25 C
10
-8.0
-16
1.0
-24
0.1
1.0k
10k
100k
1.0M
10M
-32
0
10
20
30
40
FREQUENCY f (Hz)
CATHODE VOLTAGE V
KA
(V)
3.0
PULSE RESPONSE
Ta=25 C
OPEN LOOP VOLTAGE GAIN G
VO
(dB)
VOLTAGE SWING (V)
G
VO
- f
60
50
40
30
20
10
I
K
=10mA
Ta=25 C
OUTPUT
2.0
1.0
0
5.0
0
0
4.0
8.0
12
16
20
INPUT
0
-10
1.0k
10k
100k
1.0M
10M
1000
900
TIME t (µs)
P
D
- Ta
ALLOWABLE POWER
DISSIPATION P
D
(mW)
KIA431S
KIA431F
FREQUENCY f (Hz)
800
700
600
500
400
300
200
100
0
0
25
50
75
100
125
150
175
KIA431M
KIA431T
KIA431
AMBIENT TEMPERATURE Ta ( C)
2012. 3. 20
Revision No : 16
5/8
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KIA431M2RTK/H Related Products

KIA431M2RTK/H KIA431AM2RTK/P KIA431AM2RTK/H KIA431M2RTK/P KIA431BM2RTK/P KIA431BM2RTK/H
Description Three Terminal Voltage Reference, 1 Output, 2.495V, BIPolar, PDSO3, HALOGEN FREE, SOT-23, 3 PIN Three Terminal Voltage Reference, 1 Output, 2.495V, BIPolar, PDSO3, LEAD FREE, SOT-23, 3 PIN Three Terminal Voltage Reference, 1 Output, 2.495V, BIPolar, PDSO3, HALOGEN FREE, SOT-23, 3 PIN Three Terminal Voltage Reference, 1 Output, 2.495V, BIPolar, PDSO3, LEAD FREE, SOT-23, 3 PIN Three Terminal Voltage Reference, 1 Output, 2.495V, BIPolar, PDSO3, LEAD FREE, SOT-23, 3 PIN Three Terminal Voltage Reference, 1 Output, 2.495V, BIPolar, PDSO3, HALOGEN FREE, SOT-23, 3 PIN
Maker KEC KEC KEC KEC KEC KEC
Parts packaging code SOT-23 SOT-23 SOT-23 SOT-23 SOT-23 SOT-23
package instruction LSSOP, LSSOP, LSSOP, LSSOP, LSSOP, LSSOP,
Contacts 3 3 3 3 3 3
Reach Compliance Code unknown unknown unknown unknown unknown unknown
ECCN code EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
Analog Integrated Circuits - Other Types THREE TERMINAL VOLTAGE REFERENCE THREE TERMINAL VOLTAGE REFERENCE THREE TERMINAL VOLTAGE REFERENCE THREE TERMINAL VOLTAGE REFERENCE THREE TERMINAL VOLTAGE REFERENCE THREE TERMINAL VOLTAGE REFERENCE
JESD-30 code R-PDSO-G3 R-PDSO-G3 R-PDSO-G3 R-PDSO-G3 R-PDSO-G3 R-PDSO-G3
length 2.93 mm 2.93 mm 2.93 mm 2.93 mm 2.93 mm 2.93 mm
Number of functions 1 1 1 1 1 1
Output times 1 1 1 1 1 1
Number of terminals 3 3 3 3 3 3
Maximum operating temperature 85 °C 85 °C 85 °C 85 °C 85 °C 85 °C
Minimum operating temperature -40 °C -40 °C -40 °C -40 °C -40 °C -40 °C
Maximum output voltage 36 V 36 V 36 V 36 V 36 V 36 V
Minimum output voltage 2.44 V 2.47 V 2.47 V 2.44 V 2.4825 V 2.4825 V
Nominal output voltage 2.495 V 2.495 V 2.495 V 2.495 V 2.495 V 2.495 V
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code LSSOP LSSOP LSSOP LSSOP LSSOP LSSOP
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE, LOW PROFILE, SHRINK PITCH SMALL OUTLINE, LOW PROFILE, SHRINK PITCH SMALL OUTLINE, LOW PROFILE, SHRINK PITCH SMALL OUTLINE, LOW PROFILE, SHRINK PITCH SMALL OUTLINE, LOW PROFILE, SHRINK PITCH SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Maximum seat height 1.3 mm 1.3 mm 1.3 mm 1.3 mm 1.3 mm 1.3 mm
Maximum supply voltage (Vsup) 2.55 V 2.52 V 2.52 V 2.55 V 2.507 V 2.507 V
Minimum supply voltage (Vsup) 2.44 V 2.47 V 2.47 V 2.44 V 2.49 V 2.49 V
Nominal supply voltage (Vsup) 2.495 V 2.495 V 2.495 V 2.495 V 2.495 V 2.495 V
surface mount YES YES YES YES YES YES
technology BIPOLAR BIPOLAR BIPOLAR BIPOLAR BIPOLAR BIPOLAR
Maximum voltage temperature coefficient 888 ppm/°C 888 ppm/°C 888 ppm/°C 888 ppm/°C 888 ppm/°C 888 ppm/°C
Temperature level INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL
Terminal form GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING
Terminal pitch 0.95 mm 0.95 mm 0.95 mm 0.95 mm 0.95 mm 0.95 mm
Terminal location DUAL DUAL DUAL DUAL DUAL DUAL
Fine-tuning/adjustable output NO NO NO NO NO NO
width 1.3 mm 1.3 mm 1.3 mm 1.3 mm 1.3 mm 1.3 mm

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