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National's Industry Standard
LMV431
Qualification Package
Click For More LMV431 Info Click For More LMV431A Info
Low-Voltage (1.24V) Adjustable Precision Shunt Regulator
3.3V Off-line Switching Regulator
SWITCHER
To AC Outlet 3.3V Feedback Control Opto. Iso. Vomin = 1.24V + Vopto.
LMV431
* Low Voltage: 1.24V * Wide Adjustable Output Range: 1.24V to 30V * 1% and 1.5% Reference Voltage Tolerances * Low Output Impedance: 0.25 * Fast Turn-On Characteristics * TO-92 and Space Saving SOT23-5 Packages * Low Price * Industrial and Commercial Temp Range
LMV431 QUALIFICATION PACKAGE
Summer 1999
Table of Contents
1.0 Introduction 1.1 General Product Description. . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.2 Technical Product Description . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.3 Reliability/Qualification Overview. . . . . . . . . . . . . . . . . . . . . . 1-1 1.4 Technical Assistance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 2.0 Device Information 2.1 Datasheet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 2.2 Die Photo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16 3.0 Process Information 3.1 Process Details. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 3.2 Process Mask Steps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 3.3 Process Flow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 4.0 Packaging Information 4.1 Package Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 4.2 Package Dimensions 4.2.1 SOT23-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 4.2.2 TO-92. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 4.3 Tape & Reel Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 5.0 Reliability Data 5.1 Reliability Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
1.0 INTRODUCTION
1.0 INTRODUCTION
1.1 General Product Description
This qualification packet covers the LMV431 low-voltage adjustable precision shunt regulator. It features low-voltage operation, down to 1.24V, and a wide adjustable range, up to 30V. Offered in 1% or 1.5% reference voltage tolerance versions, it is available in the TO-92 or SOT23-5 packages in both industrial and commercial temperature ranges.
1.2 Technical Product Description
The LMV431 uses a 1.24 band-gap reference instead of zener diode to overcome the shortcomings of low voltage zeners. Zener voltages below 6V tend to suffer in performance. The LMV431 provides a sharp turn-on voltage, a precision tolerance, a low temperature coefficient and a low bias current operation. The band-gap reference is in essence a temperature compensated circuit. It sums the negative temperature coefficient (TC) of a transistor with a positive TC of equal and opposite slope. When summed, these slopes cancel each other out, resulting in a relatively flat TC. The positive TC is generated by taking the difference between base-emitter voltages of two transistors running at different current densities. Current density is directly related to transistor saturation current (Is). Using the Ebers-Moll transistor model, the difference between two base-emitter voltages at different current densities results in the following: Vbe = Vt ln (IS2/IS1). The LMV431 uses a ratio of 10, causing the equation to become Vbe = Vt ln (10 IS1/ IS1). The effect of saturation current cancels out and the TC becomes positive. The gain of the Vbe circuit is precisely trimmed to provide a positive TC slope that is equal in magnitude to the negative TC that it is summed with. The LMV431 is adjustable by means of negative feedback. Refer to functional diagram in the datasheet. The LMV431 can be functionally viewed as a band-gap reference tied to the inverting input of an op amp whose output drives base of an NPN shunt transistor. When the collector/cathode is tied to the noninverting input of the op amp, negative feedback results. This is because the shunt transistor inverts the op amp's output at its collector. If the collector is tied directly to the non-inverting input, the shunt transistor sinks the necessary to maintain the cathode at 1.24V. This voltage can be gained up by using a resistive divider terminated at the op amp's non-inverting input. (See datasheet).
1.3 Reliability/Qualification Overview
The LMV431 is fabricated with the LB300 process. This device is the first LB300 product to be packaged in 5L SOT-23 and 3L TO-92. Therefore, the qualification plan also included package qualifications for each of these package combinations. The LMV431 was qualified with static operating life testing on the 3L TO-92 packaged version, along with autoclave, temperature cycle, and temperature humidity bias test on each of the package types. All tests were successfully completed. Please refer to the reliability report included in this booklet for more details.
1.4 Technical Assistance
Americas Tel: 1-800-272-9959 Fax: 1-800-737-7018 Email: support@nsc.com Europe Fax: +49 (0) 1 80 5 30 85 86 Email: europe.support@nsc.com Deutsch Tel: +49 (0) 1 80 5 30 85 85 English Tel: +49 (0) 1 80 5 32 78 32 Japan Tel: 81-3-5639-7560 Fax: 81-3-5639-7507 Asia Pacific Fax: 65-2504466 Email: sea.support@nsc.com Tel: 65-2544466 (IDD telephone charge to be paid by caller)
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LMV431 Qualification Package 1-1
2.0 DEVICE INFORMATION
2.0 DEVICE INFORMATION
2.1 Datasheet
LMV431/LMV431A Low-Voltage (1.24V) Adjustable Precision Shunt Regulators
April 1999
LMV431/LMV431A Low-Voltage (1.24V) Adjustable Precision Shunt Regulators
General Description
The LMV431and LMV431A are precision 1.24V shunt regulators capable of adjustment to 30V. Negative feedback from the cathode to the adjust pin controls the cathode voltage, much like a non-inverting op amp configuration (Refer to Symbol and Functional diagrams). A two resistor voltage divider terminated at the adjust pin controls the gain of a 1.24V band-gap reference. Shorting the cathode to the adjust pin (voltage follower) provides a cathode voltage of a 1.24V. The LMV431 and LMV431A have respective initial tolerances of 1.5% and 1%. Both grades are available in commercial and Industrial temperature ranges. The LMV431 and LMV431A functionally lends themselves to several applications that require zener diode type performance at low voltages. Applications include a 3V to 2.7V low drop-out regulator, an error amplifier in a 3V off-line switching regulator and even as a voltage detector. The part is typically stable with capacitive loads greater than 10nF and less than 50 pF. The LMV431 and LMV431A provide performance at a competitive price.
Features
n Low Voltage Operation/Wide Adjust Range (1.24V/30V) n 1% Initial Tolerance (LMV431A) n Temperature Compensated for Industrial Temperature Range (39 PPM/C for the LMV431AI) n Low Operation Current (55A) n Low Output Impedance (0.25) n Fast Turn-On Response n Low Cost
Applications
n n n n n n n Shunt Regulator Series Regulator Current Source or Sink Voltage Monitor Error Amplifier 3V Off-Line Switching Regulator Low Dropout N-Channel Series Regulator
Connection Diagrams
TO92: Plastic Package SOT23-5
DS100958-44 DS100958-1
Top View Order Number LMV431AIZ, LMV431IZ, LMV431ACZ, LMV431CZ
Top View Order Number LMV431AIM5, LMV431IM5, LMV431ACM5, LMV431CM5
(c) 1999 National Semiconductor Corporation
DS100958
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LMV431 Qualification Package 2-1
2.0 DEVICE INFORMATION
Symbol and Functional Diagrams
DS100958-59
DS100958-60
Simplified Schematic
DS100958-3
Ordering Information
Package TO92 Temperature Range Industrial Range -40C to +85C Commerial Range 0C to + 70C SOT23-5 Industrial Range -40C to +80C Voltage Tolerance 1% 1.5% 1% 1.5% 1% 1% 1.5% 1.5% Commercial Range 0C to + 70C 1% 1% 1.5% 1.5% Part Number LMV431AIZ LMV431IZ LMV431ACZ LMV431CZ LMV431AIM5 LMV431AIM5X LMV431IM5 LMV431IM5X LMV431ACM5 LMV431ACM5X LMV431CM5 LMV431CM5X Package Marking LMV431AIZ LMV431IZ LMV431ACZ LMV431CZ N08A N08A N08B N08B N09A N09A N09B N09B MA05A Z03A Drawing Number
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2.0 DEVICE INFORMATION
DC/AC Test Circuits for Table and Curves
DS100958-4
DS100958-5
FIGURE 1. Test Circuit for VZ = VREF
Note:
VZ = VREF (1 + R1/R2) + IREF * R1
FIGURE 2. Test Circuit for VZ > VREF
DS100958-6
FIGURE 3. Test Circuit for Off-State Current
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LMV431 Qualification Package 2-3
2.0 DEVICE INFORMATION
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Storage Temperature Range Operating Temperature Range Industrial (LMV431AI, LMV431I) Commercial (LMV431AC, LMV431C) Lead Temperature TO92 Package/SOT23 -5Package (Soldering, 10 sec.) Internal Power Dissipation (Note 2) TO92 SOT23-5 Package Cathode Voltage Continuous Cathode Current Reference Input Current range -65C to +150C -40C to +85C 0C to +70C
Operating Conditions
Cathode Voltage Cathode Current Temperature range LMV431AI Thermal Resistance (JA)(Note 3) SOT23-5 Package TO-92 Package Derating Curve (Slope = -1/JA) VREF to 30V 0.1 mA to 15mA -40C TA 85C 455 C/W 161 C/W
265C 0.78W 0.28W 35V -30 mA to +30 mA -.05mA to 3 mA
DS100958-30
LMV431C Electrical Characteristics
TA = 25C unless otherwise specified Symbol VREF VDEV Parameter Reference Voltage Deviation of Reference Input Voltage Over Temperature (Note 4) Ratio of the Change in Reference Voltage to the Change in Cathode Voltage IREF IREF Reference Input Current Deviation of Reference Input Current over Temperature Minimum Cathode Current for Regulation Off-State Current Dynamic Output Impedance (Note 5) Conditions TA = Full Range VZ = VREF, IZ = 10mA, TA = Full Range (See Figure 1) IZ = 10 mA (see Figure 2 ) VZ from VREF to 6V R1 = 10k, R2 = and 2.6K R1 = 10 k, R2 = II = 10 mA (see Figure 2) R1 = 10 k, R2 = , II = 10 mA, TA = Full Range (see Figure 2) VZ = VREF (see Figure 1) VZ = 6V, VREF = 0V (see Figure 3 ) VZ = VREF, IZ = 0.1mA to 15mA Frequency = 0 Hz (see Figure 1) VZ = VREF, IZ = 10 mA (See Figure 1 ) TA = 25C Min 1.222 1.21 4 -1.5 Typ 1.24 Max 1.258 1.27 12 -2.7 V mV mV/V Units
0.15
0.5
A
0.05 55 0.001 0.25
0.3 80 0.1 0.4
A A A
IZ(MIN) IZ(OFF) rZ
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2.0 DEVICE INFORMATION
LMV431I Electrical Characteristics
TA = 25C unless otherwise specified Symbol VREF VDEV Parameter Reference Voltage Deviation of Reference Input Voltage Over Temperature (Note 4) Ratio of the Change in Reference Voltage to the Change in Cathode Voltage IREF IREF Reference Input Current Deviation of Reference Input Current over Temperature Minimum Cathode Current for Regulation Off-State Current Dynamic Output Impedance (Note 5) Conditions VZ = VREF, IZ = 10 mA (See Figure 1 ) TA = 25C TA = Full Range Min 1.222 1.202 6 -1.5 Typ 1.24 Max 1.258 1.278 20 -2.7 Units V mV mV/V
IZ(MIN) IZ(OFF) rZ
VZ = VREF, IZ = 10mA, TA = Full Range (See Figure 1) IZ = 10 mA (see Figure 2 ) VZ from VREF to 6V R1 = 10k, R2 = and 2.6K R1 = 10 k, R2 = II = 10 mA (see Figure 2) R1 = 10 k, R2 = , II = 10 mA, TA = Full Range (see Figure 2) VZ = VREF (see Figure 1) VZ = 6V, VREF = 0V (see Figure 3 ) VZ = VREF, IZ = 0.1mA to 15mA Frequency = 0 Hz (see Figure 1)
0.15
0.5
A
0.1
0.4
A
55 0.001 0.25
80 0.1 0.4
A A
LMV431AC Electrical Characteristics
TA = 25C unless otherwise specified Symbol VREF VDEV Parameter Reference Voltage Deviation of Reference Input Voltage Over Temperature (Note 4) Ratio of the Change in Reference Voltage to the Change in Cathode Voltage IREF IREF Reference Input Current Deviation of Reference Input Current over Temperature Minimum Cathode Current for Regulation Off-State Current Dynamic Output Impedance (Note 5) Conditions VZ = VREF, IZ = 10 mA (See Figure 1 ) TA = 25C TA = Full Range Min 1.228 1.221 4 -1.5 Typ 1.24 Max 1.252 1.259 12 -2.7 Units V mV mV/V
IZ(MIN) IZ(OFF) rZ
VZ = VREF, IZ = 10mA, TA = Full Range (See Figure 1) IZ = 10 mA (see Figure 2 ) VZ from VREF to 6V R1 = 10k, R2 = and 2.6K R1 = 10 k, R2 = II = 10 mA (see Figure 2) R1 = 10 k, R2 = , II = 10 mA, TA = Full Range (see Figure 2) VZ = VREF (see Figure 1) VZ = 6V, VREF = 0V (see Figure 3 ) VZ = VREF, IZ = 0.1mA to 15mA Frequency = 0 Hz (see Figure 1)
0.15
0.50
A
0.05
0.3
A
55 0.001 0.25
80 0.1 0.4
A A
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LMV431 Qualification Package 2-5
2.0 DEVICE INFORMATION
LMV431AI Electrical Characteristics
TA = 25C unless otherwise specified Symbol VREF VDEV Parameter Reference Voltage Deviation of Reference Input Voltage Over Temperature (Note 4) Ratio of the Change in Reference Voltage to the Change in Cathode Voltage IREF IREF Reference Input Current Deviation of Reference Input Current over Temperature Minimum Cathode Current for Regulation Off-State Current Dynamic Output Impedance (Note 5) Conditions TA = Full Range VZ = VREF, IZ = 10mA, TA = Full Range (See Figure 1) IZ = 10 mA (see Figure 2 ) VZ from VREF to 6V R1 = 10k, R2 = and 2.6K R1 = 10 k, R2 = II = 10 mA (see Figure 2) R1 = 10 k, R2 = , II = 10 mA, TA = Full Range (see Figure 2) VZ = VREF (see Figure 1) VZ = 6V, VREF = 0V (see Figure 3 ) VZ = VREF, IZ = 0.1mA to 15mA Frequency = 0 Hz (see Figure 1) VZ = VREF, IZ = 10 mA (See Figure 1 ) TA = 25C Min 1.228 1.215 6 -1.5 Typ 1.24 Max 1.252 1.265 20 -2.7 V mV mV/V Units
0.15
0.5
A
0.1
0.4
A
IZ(MIN) IZ(OFF) rZ
55 0.001 0.25
80 0.1 0.4
A A
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Electrical specifications do not apply when operating the device beyond its rated operating conditions. Note 2: Ratings apply to ambient temperature at 25C. Above this temperature, derate the TO92 at 6.2 mW/C, and the SOT23-5 at 2.2 mW/C. See derating curve in Operating Condition section.. Note 3: TJ Max = 150C, TJ = TA+ (JA PD), where PD is the operating power of the device. Note 4: Deviation of reference input voltage, VDEV, is defined as the maximum variation of the reference input voltage over the full temperature range. See following:
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2.0 DEVICE INFORMATION
LMV431AI Electrical Characteristics
(Continued)
DS100958-7
The average temperature coefficient of the reference input voltage, VREF, is defined as:
Where: T2 - T1 = full temperature change. VREF can be positive or negative depending on whether the slope is positive or negative. Example: VDEV = 6.0mV, REF = 1240mV, T2 - T1 = 125C.
Note 5: The dynamic output impedance, rZ, is defined as:
When the device is programmed with two external resistors, R1 and R2, (see Figure 2 ), the dynamic output impedance of the overall circuit, rZ, is defined as:
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LMV431 Qualification Package 2-7
2.0 DEVICE INFORMATION
Typical Performance Characteristics
Reference Voltage vs Junction Temperature Reference Input Current vs Junction Temperature
DS100958-50
DS100958-62
Cathode Current vs Cathode Voltage 1
Cathode Current vs Cathode Voltage 2
DS100958-51
DS100958-52
Off-State Cathode Current vs Junction Temperature
Delta Reference Voltage Per Delta Cathode Voltage vs Junction Temperature
DS100958-63
DS100958-61
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2.0 DEVICE INFORMATION
Typical Performance Characteristics
Input Voltage Noise vs Frequency
(Continued)
DS100958-45 DS100958-53
Test Circuit for Input Voltage Noise vs Frequency
Low Frequency Peak to Peak Noise
DS100958-54
DS100958-64
Test Circuit for Peak to Peak Noise (BW = 0.1Hz to 10Hz) Small Signal Voltage Gain and Phase Shift vs Frequency
DS100958-46
Test Circuit For Voltage Gain and Phase Shift vs Frequency
DS100958-55
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LMV431 Qualification Package 2-9
2.0 DEVICE INFORMATION
Typical Performance Characteristics
Reference Impedance vs Frequency
(Continued)
DS100958-47
Test Circuit For Reference Impedance vs Frequency
DS100958-56
Pulse Response 1
DS100958-48
Test Circuit for Pulse Response 1
DS100958-57
Pulse Response 2
DS100958-49
Test Circuit for Pulse Response 2
DS100958-58
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2.0 DEVICE INFORMATION
Typical Performance Characteristics
(Continued)
Percentage Change in VREF vs Operating Life at 55C
DS100958-66
Extrapolated from life-test data taken at 125C; the activation energy assumed is 0.7eV.
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LMV431 Qualification Package 2-11
2.0 DEVICE INFORMATION
Typical Applications
Series Regulator Output Control of a Three Terminal Fixed Regulator
DS100958-16 DS100958-17
Higher Current Shunt Regulator
Crow Bar
DS100958-18
DS100958-19
Over Voltage/Under Voltage Protection Circuit
DS100958-20
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2.0 DEVICE INFORMATION
Typical Applications
(Continued) Voltage Monitor
DS100958-21
Delay Timer
Current Limiter or Current Source
DS100958-23
DS100958-22
Constant Current Sink
DS100958-24
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LMV431 Qualification Package 2-13
2.0 DEVICE INFORMATION
Physical Dimensions
inches (millimeters) unless otherwise noted
SOT23-5 Molded Small Outline Transistor Package (M5) Order Number LMV431AIM5, LMV431AIM5X, NS Package Number MA05A
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2.0 DEVICE INFORMATION
LMV431/LMV431A Low-Voltage (1.24V) Adjustable Precision Shunt Regulators
Physical Dimensions
inches (millimeters) unless otherwise noted (Continued)
Order Number LMV431AIZ, LMV431AIZX, NS Package Number Z03A
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LMV431 Qualification Package 2-15
2.0 DEVICE INFORMATION
2.2 Die Photo
2-16
3.0 PROCESS INFORMATION
3.0 PROCESS INFORMATION
3.1 Process Details
Fabrication Site: Fab 3 , Greenock , Scotland Process Technology: LB300 Minimum Feature Size: 3m X 3m Wafer Diameter: 6 inches Number of Masks: 12 Metallization: 0.5% Copper / Aluminum Passivation: VOM & Nitride
3.2 Process Mask Steps
Name COLLECTOR UP ISOLATION PLUG ISOLATION/DEEP BASE FIELD THRESH ADJUST BASE EMITTER RESISTOR CAPACITOR CONTACT METAL PAD Mask 10 19 22 28 26 30 40 41 42 50 60 70 FM_GDS 1 2 3 4+5 6 7 8 9 10 11 12 15
3.3 Process Flow
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. Initial Ox Collector Mask Collector Implant Collector Drive Up Isolation Mask Up Isolation Implant Epi Strip Epi Growth Epi Reox Plug Mask Plug Predep Plug Diffusion Iso/DB Mask Pre Iso/DB Implant Oxidation Iso/DB Implant Iso/DB Drive FTA Mask FTA Implant FTA Re-oxidation Base Mask Pre-BaseImplant Oxidation Base Implant Base Drive 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. 44. 45. Post Base Oxidation Emitter Mask Screen Oxidation Emitter Implant Emitter Drive Resistor Mask Resistor Implant Vapox Over Emitter Getter Capacitor Mask Capacitor Ox MEC Anneal Contact Mask Pt Deposition Pt Silicide Pt Strip TiW Deposition Metal Deposition Metal Mask Dual Layer Passivation Pad Mask Anneal
LMV431 Qualification Package 3-1
4.0 PACKAGING INFORMATION
4.0 PACKAGING INFORMATION
4.1 Package Material
Generic Package Type NS Package Number Package Material Type Mold Compound Manufacturer's Designation Lead Frame Material Lead Frame Manufacturer External Lead Frame Coating Die Attach Method Bond Wire Bond Type Package Thermal SOT23-5 MA05B Molded Plastic Sumitomo B18 Alloy 194 POSSEHL Tin/Lead on Copper Preform (Eutectic) Gold, (1Mil) Thermosonic Ball 289C/W jA, 3 lead TO-92 Z03A Molded Plastic Plaskon B8 Copper DCI (Dynacraft Industries) Tin/Lead on Copper Preform (Eutectic) Gold, (1 Mil) Thermosonic Ball 125C/W jC 208C/W jA (still air)
LMV431 Qualification Package 4-1
4.0 PACKAGING INFORMATION
4.2 Package Dimensions 4.2.1 SOT23-5
4-2
4.0 PACKAGING INFORMATION
4.2.2 TO-92 NS Package Number Z03A
LMV431 Qualification Package 4-3
4.0 PACKAGING INFORMATION
4.3 Tape & Reel Dimensions
4-4
4.0 PACKAGING INFORMATION
LMV431 Qualification Package 4-5
5.0 RELIABILITY DATA
5.0 RELIABILITY DATA
Reliability Test Report
File Number: FEM19980537 Originator: Suresh Kumar Date:December 1, 1998
Purpose LMV431 New Device Qualification
Approvals
Reliability Engineer Mgr Ref Engineering
Reference File Numbers REM199803547 REM199803121 Q19980489
Distribution List KP Kok, Nick Stanco, Steve Messer
Abstract The LMV431 is a new device being qualified for the Standard Analog product line. The device is a low power LB300 process version of the previously qualified LM431 Shunt Regulator on the Bipolar Linear process. The LMV431 will be assembled in the 5L SOT-23 and 3L TO-92 packages, neither of which has been qualified with the LB300 process. The LMV431 is intended for general purpose release and will be qualified as a Category I device per (SC)CSP-5-252. Based on the extensive data available on both the 5L SOT-23 and 3L TO-92 packages with other Bipolar processes, the package related reliability test requirements for each package type will be reduced to one lot from the standard three lot requirement for unqualified process/package combinations. The LMV431 will be qualified via 3 lots of SOPL testing on the 3L TO-92 packaged version (to utilize current boards) along with one lot of ACLV, TMCL and THBT on each of the package types Description
Test Request REM199803121 REM199803547 REM199803547 REM199803547 Device Name LMV431AIM5 (Sot 23 5L) LMV431AIZ (T092 ) LMV431AIZ (T092) LMV431AIZ (T092) Sbgp A A B C Wafer Die Run XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX Fab Loc UK UK UK UK Fab Line 6 6 6 6 INCH INCH INCH INCH Pkg Code N\TG23 N\TO92 N\TO92 N\TO92 # Leads 5 3 3 3 Assy Loc EM EM EM EM Date Cd 9836 9842 9842 9842
Tests Performed
Surface mount device will undergo the preconditioning Preconditioning Flow TMCL (-40/60) Bake (125C) 24hrs THST (85C/85%RH) 168hrs Reflow (235C) 3 passes Flux immersion Rinse Dry Ate Test: Autoclave Test (ACLV) Test Request REM199803121 REM199803547 REM199803547 REM199803547 Device LMV431AIM5 LMV431AIZ LMV431AIZ LMV431AIZ Sbgrp A A B C Rel Humidity 100 100 100 100 Pressure 15 15 15 15 High Temp 121 121 121 121 Low Temp
LMV431 Qualification Package 5-1
5.0 RELIABILITY DATA
Tests Performed
Timepoints: Test Request REM199803121 REM199803547 TP 1 1 Duration 168 168
Test: Operating Life Test (Static) (SOPL) Test Request REM199803547 REM199803547 REM199803547 Timepoints: Test Request REM199803547 REM199803547 REM199803547 Test: Temperature Cycle (TMCL) Test Request REM199803121 REM199803547 REM199803547 REM199803547 Timepoints: Test Request REM199803121 REM199803121 REM199803547 REM199803547 Device LMV431AIM5 LMV431AIZ LMV431AIZ LMV431AIZ TP 1 2 1 2 Sbgrp A A B C Duration 500 1000 500 1000 Rel Humidity Pressure High Temp 150 150 150 150 Low Temp -65 -65 -65 -65 Device LMV431AIZ LMV431AIZ LMV431AIZ TP 1 2 3 Sbgrp A B C Duration 168 500 1000 Rel Humidity Pressure High Temp 150 150 150 Low Temp
Test: Temperature Humidity Bias Test (THBT) Test Request REM199803121 REM199803547 REM199803547 REM199803547 Timepoints: Test Request REM199803121 REM199803121 REM199803121 REM199803547 REM199803547 REM199803547 Device LMV431AIM5 LMV431AIZ LMV431AIZ LMV431AIZ TP 1 2 3 1 2 3 Sbgrp A A B C Rel Humidity 85 85 85 85 Pressure High Temp 85 85 85 85 Low Temp
Duration 168 500 1000 168 500 1000
5-2
5.0 RELIABILITY DATA
Results/Discussion
Test: Autoclave Test Test Request REM199803121 REM199803121 REM199803547 REM199803547 REM199803547 Test: Operating Life Test Request REM199803547 REM199803547 REM199803547 REM199803547 REM199803547 REM199803547 (ACLV) Device LMV431AIM5 LMV431AIM5 LMV431AIZ LMV431AIZ LMV431AIZ Sbgrp A A A B C TP 0 1 1 1 1 Duration Precond 168 168 168 168 Sample Size 50 50 50 50 50 Rejects 0 0 0 0 0
Test (Static) (SOPL) Device Sbgrp LMV431AIZ A LMV431AIZ A LMV431AIZ B LMV431AIZ B LMV431AIZ C LMV431AIZ C (THBT) Sbgrp A A A A A B B C C
TP 1 2 1 2 1 2
Duration 168 500 168 500 168 500
Sample Size 100 100 100 100 100 100
Rejects 0 0 0 0 0 0
Test: Temperature Humidity Bias Test Test Request Device REM199803121 LMV431AIM5 REM199803121 LMV431AIM5 REM199803121 LMV431AIM5 REM199803547 LMV431AIZ REM199803547 LMV431AIZ REM199803547 LMV431AIZ REM199803547 LMV431AIZ REM199803547 LMV431AIZ REM199803547 LMV431AIZ Test: Temperature Cycle (TMCL) Test Request Device REM199803121 LMV431AIM5 REM199803121 LMV431AIM5 REM199803121 LMV431AIM5 REM199803547 LMV431AIZ REM199803547 LMV431AIZ REM199803547 LMV431AIZ REM199803547 LMV431AIZ REM199803547 LMV431AIZ REM199803547 LMV431AIZ
TP 0 1 1 1 2 1 2 1 2
Duration Precond 168 500 168 500 168 500 168 500
Sample Size 100 100 88 100 88 100 88 100 88
Rejects 0 0 0 0 0 0 0 0 0
Sbgrp A A A A A B B C C
TP 0 1 2 1 2 1 2 1 2
Duration Precond 500 1000 500 1000 500 1000 500 1000
Sample Size 100 100 100 100 100 100 100 100 100
Rejects 0 0 0 0 0 0 0 0 0
Conclusion
Based on the qualification results on the stress test, the LMV431 has passed the stress test in both Sot23 5 leads and TO92 package. They have passed the release time points.
LMV431 Qualification Package 5-3
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