vw80808 - basics€¦ · • mlcc portfolio that meet ⏤12v batterie application ( terminal 30)...
TRANSCRIPT
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Part 1
VW80808 - Basics
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Agenda
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• Standard / Normativ Landscape and VW80808• Lifetime• Failsafe strategy
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Cross view on automotive standards
• LV124 – Document of the working group• BMW GS 95024-2-2 • Daimler MBN 10615 ( MBN = Mercerdes Benz Norm)• Porsche ( in the meantime part of VW)• VW 80000
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Why VW
• VW sold 10.92 Miilion cars in 2019• Assume an average of 10.000 capacitor in a car• Annual consumption is 100 Billion pieces• This is twice our annual production capacity
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The landscape
AEC-Q200 REV D STRESS TEST QUALIFICATION FOR PASSIVE COMPONENTS
ISO 7637-2 Road vehicles – Electrical disturbances by conducting and coupling
LV124 requirements, test conditions and tests for electric, electronic and mechatronic components and systems for the use in motor vehicles up to 3,5 t
LV148 Electric and electronic components in motor vehicles 48V power supply
TL 81000 Electromagnetic Compatibility of Electronic Components for Motor VehiclesEMC changes
VW 80000 Electric and Electronic Components in Motor Vehicles up to 3.5 tGeneral Requirements, Test Conditions, and Tests
VW80303 Electrical Characteristics and Electrical Safety of High-Voltage Components in Road Vehicles ( 400V and 800V)
VW80808-1 Requirement ComponentRequirement Qualification
VW80808-2 Requirements and Use – Part 2 Appendix A (normative) Qualification of MLCCs with soft termination
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VW standards
• Available on the online portal• https://www.vwgroupsupply.com/• Application is ONNO = ONline Normen• We do NOT handout any digital or paper copy
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What is VW80808
• Electronic Components and Assemblies in Electrical and Electronic Parts in Motor Vehicles up to 3.5 t
• Requirements and Use – Part 1• Requirements and Use – Part 2 high level of details Appendix A ( flexterm)• Part 2 depend on part 1
Main aspect for is :• protect the electrical system from mail function and a short between battery and chassis
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Electrolytics
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Section 9.2.3 Electrolytics
1) Use of Electrolytic capacitor based on water is not permiited2) For certain application Lifetime has to be proofed – ELC = lifetime calculator
KEMET automotive families are NOT waterbased
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ALA7(85°C), ALA8(105°C) PEG22x, PE PEH22x
Snapin Axial Radial ( crown)
400V DC/DC and OBC 48V application 48V application
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Lifetime
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Make sure you use the right formula
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electrolytic lifetime calculator – Mission profile
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Tips on the lifetime calculator
• Select the partnumber• Click on EDIT and SAVE Buttons• Timefraction MUST be 100%
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Data import / export Excel format
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Why failsafe strategy
• The batterie can provide hundred‘s of Ampere • In case of a short capacitors all current run thr+u teh damaged capacitor• Part will get very hot ( ceramic) or ignite (Tantalum. Electrolytic)
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Electrical Pulse Tests - VW8000 - §7
www.spitzenberger.de © Spitzenberger & Spies 2014
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E-05 Load dump
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• Load dump means the disconnection of a powered load.• large voltage spikes from the inductive generator(s)• Test condition : a = Unsurpressed, b = surpressed
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Load dump
• Peak voltage up to 120V / 40ms• Typically Clamped to 40V in 12V systems and 60V/24V Systems
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AEC-Q200 versus VW80808
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AEC-Q200 Test & Change Control
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AEC-Q200Test No. Test Name AEC -Q200 Test Conditions
1 Pre and Post Stress Electrical Test Customer Defined Criteria
2 High Temp. Exposure (Storage) 150C +/-3C for 1000 hours
3 Temp. Cycle -55C to 125C for 1000 cycles
4 DPA Per EIA-469
5 Moisture Resistance Steady state humidity (80-98%) cycling between 25C and 65C, for 20 cycles, 8 hrs. per cycle
6 Biased Humidity 85C, 85% R.H. for 1000 hours, rated voltage applied and 1.3V applied
7 Operating Life 125C for 1000 hours rated Voltage applied
8 External Visual Visual Inspection
9 Physical Dimensions Within Specified Dimensions
10 Resistance to Solvents Mil-Std 202/Meth 215
11 Mechanical Shock Three shocks/three axis half sine wave of 1800g, duration 0.5ms
12 VibrationThree axis of simple harmonic motion between 10Hz to 2.0khz and back to 10Hz of amplitude 1.5mm for 20 minutes.
13 Resistance to Solder Heat
Solder immersion @ 260C for 10+/-1seconds
14 Thermal Shock -55C to 125C for 300 cycles, with 20second (max) transfer time
15 ESD Per AEC-Q200-004 for ESD classification.
16 Solderability Three methods noted
17 Electrical Characterization Measure Cap/DF/IR
18 Board Flex 2mm flex requirement
19 Terminal Strength Static side pressure of soldered capacitor of 18N force for 60 seconds
20 Beam Load Test Static Load test of varying force (based on chip size)
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Qualification package
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Qualification package cont´ed
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Qualification package
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Flex test
• Defined in AEC-Q200-005A • Require 2mm for Class II ( X5R, X7R, X8R, X8L) and 3mm for Class I ( C0G, NP0)
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Convert deflection into µStrain
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AEC-Q200
VW80808 – Annex 2
KONNEKT KPS
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VW Flextest
• VW require 5mm• Sequentiell stress test electrical / mechanical/ temperature / Humidity• Use the same equipment but with a modified PCB to do measurements
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Compare AEC-Q200 and the VW flex test
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• AEC-Q200 describe the componet qualification and is the baseline• VW80808 target is the usage of the component in the car application
AEC-Q200 VW80808Open Standard VW proprietary
Boardflex testSeparate Thermal cycleSeparate THB
Boardflex Test sequence with1. thermal cycle -55°C .. 125°C 1h2. THB 85%rH,85°C
77pcs 100pcs
Test in parallel Test in sequence
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What about part 2
• Film capacitors• MLCC portfolio that meet
12V batterie application ( Terminal 30) low voltage 5V, 3.3V and even lower
• Usage of Polymer capacitors• ESD • Compare between different technologies
• Design to cost
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Wrap up
• VW80808 related to passive components• New specification release Mar 2020• Liquid electrolyte MUST not be water based• AEC-Q200 are the basic and underlying the VW specification• AEC-Q200 • Special requirement for soft terminations ( test sequence)
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Axel SchmidtField Application Engineer, Germany
Mobile: [email protected]
Thank you!
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High voltage
• The following voltage levels are defined for DC HV circuits: • HV_1 • • HV_2a • HV_2b • HV_3.
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The landscape
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VW 80000 Electric and Electronic Components in Motor Vehicles up to 3.5 tGeneral Requirements, Test Conditions, and Tests
TL 81000 Electromagnetic Compatibility of Electronic Components for Motor VehiclesEMC changes
AEC-Q200 REV D STRESS TEST QUALIFICATION FOR PASSIVE COMPONENTS
ISO 7637-2 Road vehicles – Electrical disturbances by conducting and coupling
LV124LV124BMW GS 95024-2-2 MBN 10615 Porsche VW 80000
requirements, test conditions and tests for electric, electronic and mechatronic componentsand systems for the use in motor vehicles up to 3,5 t
VW80808-1 Requirement ComponentRequirement Qualification
VW80808-2 Requirements and Use – Part 2 Appendix A (normative) Qualification of MLCCs with soft termination
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©KEMET Corporation. All Rights Reserved.
Part number T598D226M035ATE065Electrical measurements before and after
PART CAP (uF, 120Hz) DF (%, 120Hz) ESR (RT, 100kHz) LEAK (uA, RT, 35V, 5min)1 21,714 2,160 0,038 0,3002 21,686 2,110 0,036 7,8303 21,319 2,010 0,039 0,4634 20,963 2,020 0,040 0,8115 21,946 2,110 0,036 0,2676 22,010 2,230 0,040 0,429
mean 21,606 2,107 0,038 1,683min 20,963 2,010 0,036 0,267max 22,010 2,230 0,040 7,830
specification (17,6-26,4)uF 10% 0,065 Ohm 77uA807060504030201 00
99,99
99
95
80
50
20
5
1
0,4324 0,2839 6 0,355 0,3220,371 6 0,2273 6 0,425 0,203
Mean StDev N AD P
DCL (35V, RT, 2min, uA)
Perc
ent
77
D22uF35V_DCL (uA) beforeD22uF35V_DCL (uA) after
Variable
Normal - 95% CIProbability Plot of D22uF35V Leakage Current
5min, Urated)Specification Limit DCL 77uA (RT,
final measurement after: Pulse 5, Umax=41Vdc, tr=2ms, t1=300ms, cycles 10Sample (CM-CN)/CN DF IR MΩ DCL (uA) (CM-CA)/CA d DF d IR MΩ Delta IR
No. 1 kHz % 0.1 kHz 35Vdc/120s 35,0 1 kHz % 0.1kHz %1 -5,45 0,01470 8,1E+01 0,4320988 0,11 0,0006 1,28E+01 19%2 -7,13 0,01475 4,9E+01 0,7185383 0,13 0,0007 9,34E+00 24%3 -2,83 0,01555 9,7E+01 0,3608247 0,14 0,0009 3,92E+00 4%4 -3,82 0,01600 1,0E+02 0,3375121 0,19 0,0011 9,01E+00 10%5 -4,00 0,01545 5,1E+03 0,0068453 0,11 0,0004 2,50E+02 5%6 -2,94 0,01530 9,4E+01 0,3740115 0,12 0,0006 1,39E+01 17%
0,10000 77,00