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LM431AIM

Description
1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.5 V, PDSO8
CategoryPower/power management    The power supply circuit   
File Size122KB,12 Pages
ManufacturerFairchild
Websitehttp://www.fairchildsemi.com/
Environmental Compliance
Related ProductsFound1parts with similar functions to LM431AIM
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LM431AIM Overview

1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.5 V, PDSO8

LM431AIM Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerFairchild
Parts packaging codeSOIC
package instructionSOP, SOP8,.25
Contacts8
Reach Compliance Codeunknow
ECCN codeEAR99
Other featuresOUTPUT VOLTAGE ADJUSTABLE FROM 2.5 TO 36V WITH TWO EXTERNAL RESISTORS
Analog Integrated Circuits - Other TypesTWO TERMINAL VOLTAGE REFERENCE
JESD-30 codeR-PDSO-G8
JESD-609 codee3
length4.9 mm
Humidity sensitivity level1
Number of functions1
Output times1
Number of terminals8
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Maximum output current0.1 A
Maximum output voltage2.55 V
Minimum output voltage2.45 V
Nominal output voltage2.5 V
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Encapsulate equivalent codeSOP8,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height1.8 mm
surface mountYES
technologyBIPOLAR
Maximum voltage temperature coefficient54.4 ppm/°C
Temperature levelINDUSTRIAL
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
Fine-tuning/adjustable outputYES
width3.9 mm
www.fairchildsemi.com
LM431A/LM431B/LM431C
Programmable Shunt Regulator
Features
Programmable Output Voltage to 36 Volts
Low Dynamic Output Impedance 0.20 Typical
Sink Current Capability of 1.0 to 100mA
Equivalent Full-Range Temperature Coefficient of
50ppm/°C Typical
• Temperature Compensated for Operation Over Full Rated
Operating Temperature Range
• Low Output Noise Voltage
• Fast Turn-on Response
Description
The LM431A/LM431B/LM431C are three terminal output
adjustable regulators with thermal stability over operating
temperature range. The output voltage can be set any value
between V
REF
(approximately 2.5 volts) and 36 volts with
two external resistors. These devices have a typical dynamic
output impedance of 0.2Ω Active output circuit provides a
sharp turn-on characteristic, making these devices excellent
replacement for Zener Diodes in many applications.
TO-92
1
1. Ref 2. Anode 3. Cathode
8-DIP
8-SOP
1
1
1.Cathode 2.3.4.5.7.NC
6.Anode 8.Ref
1.Cathode 2.3.6.7.Anode
4.5.NC 8.Ref
Internal Block Diagram
REFERENCE
CATHODE
2.5 Vref
ANODE
CATHODE (K)
REFERENCE (R)
ANODE (A)
Rev. 1.0.7
©2003 Fairchild Semiconductor Corporation

LM431AIM Related Products

LM431AIM LM431C LM431B LM431CIZ LM431BCZ LM431BCM LM431AIZ LM431ACZ LM431ACN
Description 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.5 V, PDSO8 TWO TERM VOLTAGE REFERENCE TWO TERM VOLTAGE REFERENCE TWO TERM VOLTAGE REFERENCE TWO TERM VOLTAGE REFERENCE TWO TERM VOLTAGE REFERENCE 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.495 V, PBCY3 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.5 V, PBCY3 TWO TERM VOLTAGE REFERENCE
Is it Rohs certified? conform to - - conform to conform to incompatible conform to conform to incompatible
Maker Fairchild - - Fairchild Fairchild Fairchild Fairchild Fairchild Fairchild
Parts packaging code SOIC - - TO-92 TO-92 SOIC TO-92 TO-92 DIP
package instruction SOP, SOP8,.25 - - , SIP3,.1,50 , SIP3,.1,50 SOP-8 , SIP3,.1,50 , SIP3,.1,50 DIP-8
Contacts 8 - - 3 3 8 3 3 8
Reach Compliance Code unknow - - unknow unknow unknown compli compli compli
ECCN code EAR99 - - EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
Other features OUTPUT VOLTAGE ADJUSTABLE FROM 2.5 TO 36V WITH TWO EXTERNAL RESISTORS - - OUTPUT VOLTAGE ADJUSTABLE FROM 2.495 TO 36V WITH TWO EXTERNAL RESISTORS OUTPUT VOLTAGE ADJUSTABLE FROM 2.495 TO 36V WITH TWO EXTERNAL RESISTORS OUTPUT VOLTAGE ADJUSTABLE FROM 2.495 TO 36V WITH TWO EXTERNAL RESISTORS OUTPUT VOLTAGE ADJUSTABLE FROM 2.5 TO 36V WITH TWO EXTERNAL RESISTORS OUTPUT VOLTAGE ADJUSTABLE FROM 2.5 TO 36V WITH TWO EXTERNAL RESISTORS OUTPUT VOLTAGE ADJUSTABLE FROM 2.5 TO 36V WITH TWO EXTERNAL RESISTORS
Analog Integrated Circuits - Other Types TWO TERMINAL VOLTAGE REFERENCE - - TWO TERMINAL VOLTAGE REFERENCE TWO TERMINAL VOLTAGE REFERENCE TWO TERMINAL VOLTAGE REFERENCE TWO TERMINAL VOLTAGE REFERENCE TWO TERMINAL VOLTAGE REFERENCE TWO TERMINAL VOLTAGE REFERENCE
JESD-30 code R-PDSO-G8 - - O-PBCY-T3 O-PBCY-T3 R-PDSO-G8 O-PBCY-T3 O-PBCY-T3 R-PDIP-T8
JESD-609 code e3 - - e3 e3 e0 e3 e3 e0
Number of functions 1 - - 1 1 1 1 1 1
Output times 1 - - 1 1 1 1 1 1
Number of terminals 8 - - 3 3 8 3 3 8
Maximum operating temperature 85 °C - - 85 °C 85 °C 85 °C 85 °C 85 °C 85 °C
Minimum operating temperature -40 °C - - -40 °C -25 °C -25 °C -40 °C -25 °C -25 °C
Maximum output current 0.1 A - - 0.1 A 0.1 A 0.1 A 0.1 A 0.1 A 0.1 A
Maximum output voltage 2.55 V - - 2.508 V 2.52 V 2.52 V 2.55 V 2.55 V 2.55 V
Minimum output voltage 2.45 V - - 2.482 V 2.47 V 2.47 V 2.45 V 2.45 V 2.45 V
Nominal output voltage 2.5 V - - 2.495 V 2.495 V 2.495 V 2.5 V 2.5 V 2.5 V
Package body material PLASTIC/EPOXY - - PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
Encapsulate equivalent code SOP8,.25 - - SIP3,.1,50 SIP3,.1,50 SOP8,.25 SIP3,.1,50 SIP3,.1,50 DIP8,.3
Package shape RECTANGULAR - - ROUND ROUND RECTANGULAR ROUND ROUND RECTANGULAR
Package form SMALL OUTLINE - - CYLINDRICAL CYLINDRICAL SMALL OUTLINE CYLINDRICAL CYLINDRICAL IN-LINE
Peak Reflow Temperature (Celsius) 260 - - NOT APPLICABLE - NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
Certification status Not Qualified - - Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
surface mount YES - - NO NO YES NO NO NO
technology BIPOLAR - - BIPOLAR BIPOLAR BIPOLAR BIPOLAR BIPOLAR BIPOLAR
Maximum voltage temperature coefficient 54.4 ppm/°C - - 54.509 ppm/°C 61.942 ppm/°C 61.942 ppm/°C 54.4 ppm/°C 61.818 ppm/°C 61.818 ppm/°C
Temperature level INDUSTRIAL - - INDUSTRIAL OTHER OTHER INDUSTRIAL OTHER OTHER
Terminal surface Matte Tin (Sn) - - Matte Tin (Sn) Matte Tin (Sn) Tin/Lead (Sn/Pb) Matte Tin (Sn) Matte Tin (Sn) Tin/Lead (Sn/Pb)
Terminal form GULL WING - - THROUGH-HOLE THROUGH-HOLE GULL WING THROUGH-HOLE THROUGH-HOLE THROUGH-HOLE
Terminal pitch 1.27 mm - - 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm 2.54 mm
Terminal location DUAL - - BOTTOM BOTTOM DUAL BOTTOM BOTTOM DUAL
Maximum time at peak reflow temperature NOT SPECIFIED - - NOT APPLICABLE - NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
Fine-tuning/adjustable output YES - - YES YES YES YES YES YES

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