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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 Vref 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 0.22 .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 + Vref Code + Package Code+Pin Configuration Code ITEM Code Blank A B Vref 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 : 0.22 (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.
LINE UP
Type No. KIA431 KIA431A KIA431B KIA431F KIA431AF KIA431BF KIA431T KIA431AT KIA431BT KIA431S KIA431AS KIA431BS KIA431M KIA431AM KIA431BM KIA431M2 KIA431AM2 KIA431BM2 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
* KIA431BT (Tolerance : 0.5% , TSV package) : Under Development
2009. 3. 4
Revision No : 15
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KIA431 Series
BLOCK DIAGRAM
Reference (R)
+ -
Cathode (K) Cathode (K) Reference (R)
2.5Vref
Anode (A) Anode (A)
ORDERING INFORMATION
KIA431
Pb-Free / Halogen-Free Packing Specification Pin configuration (SOT-23 Only) Package code Vref Tolerance code
Vref Tolerance code Blank ¡¾ ¡¾ ¡¾ 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
2009. 3. 4
Revision No : 15
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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 Note2) Package mounted on a ceramic board. (600 0.6mm 0.8 ) (Note1) (Note2) PD SYMBOL VKA IK Iref Tj Topr Tstg RATING 37 -100 150 -0.05 10 150 -40 85 -65 150 700 800 350 900 550 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 Reference Input Current Deviation Over Temperature Range Minimum Cathode Current For Regulation Off-State Cathode Current Dynamic Impedance Ta=Topr KIA431A KIA431B Vref Vref
)
TEST CIRCUIT TEST CONDITION MIN. 2.440 Figure 1 VKA=Vref , IK=10mA 2.470 2.4825 Figure 1 (Note 1) VKA=Vref , IK=10mA VKA= Figure 2 IK=10mA, R1=10k IK=10mA, R1=10k VKA=Vref VKA=36V, Vref=0V VKA=Vref, IK=1.0 100mA, f 1.0kHz , R2= , R2= 0.8 0.5 2.6 0.22 6.5 2.5 1.0 1000 A mA nA TYP. 2.495 2.495 2.495 7.0 -1.4 -1.0 1.8 MAX. 2.550 2.520 2.5075 30 -2.7 mV/V -2.0 4.0 A UNIT V V V mV
SYMBOL
Vref/ VKA
Figure 2
IK=10mA
10V VKA= 36V
Vref 10V
Iref
Iref Imin Ioff Zka
Figure 2 Figure 1 Figure 3 Figure 1 (Note 2)
2009. 3. 4
Revision No : 15
3/8
KIA431 Series
FIGURE 1-TEST CIRCUIT FOR VKA = Vref Input IK VKA
FIGURE 3-TEST CIRCUIT FOR I off Input I off VKA
Vref
FIGURE 2-TEST CIRCUIT FOR VKA > Vref Input IK R1 Iref VKA = Vref ( 1+
R1 ) + Iref R2
Example : ¥Ä
Vref = 8.0mV and slope is positive, Vref at 25¡É =2.495V, ¥Ä Ta=70¡É
VKA ¥á Vref = R1
0.008¡¿ 70¡¿
106
(2.495)
= 45.8 ppm/¡É
Note 2: The dynamic impedance Zka is defined as: |Zka| = ¥Ä ¥Ä VKA Ik
R2 Vref
When the device is programmed with two external Note 1: The deviation parameter ¥Ä Vref is defined as the differences between the maximum and minimum values obtained over the full operating ambient temperature range that applies. |Zka'| = |Zka| (1+ R1 R2 ) resistors, R1 and R2, (refer to Figure 2) the total dynamic impedance of the circuit is defined as:
Vref Max.
Vref = Vref (M.