171936001 WURTH | Alldatasheet
Document overview
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- PDF pages: 41
Technical content
Datasheet sections
- 1 PINOUT
- 2 ORDERING INFORMATION
- 3 SALES INFORMATION
- 4 ABSOLUTE MAXIMUM RATINGS
- 5 OPERATING CONDITIONS
- 6 THERMAL SPECIFICATIONS
- 7 ELECTRICAL SPECIFICATIONS
- 8 RoHS, REACh
- 9 PACKAGE SPECIFICATIONS
- 10 NOTES
- 11 TYPICAL PERFORMANCE CURVES
- 11.1 RadiatedandConductedEmissions(WithEMIInputFilter)
- 11.1.1 RadiatedEmissionsEN55032(CISPR-32)ClassBComplaintTestSetup
- 11.1.2 ConductedEmissionsEN55032(CISPR-32)ClassBComplaintTestSetup
- 11.1.3 RadiatedEmissions(FixedFrequency)
- 11.1.4 ConductedEmissions(FixedFrequency)
- 11.2 DCPerformanceCurves
- 11.2.1 Efficiency24VinFPWM
- 11.2.2 Efficiency48VinFPWM
- 11.2.3 Efficiency24VinPFM
- 11.2.4 Efficiency48VinPFM
- 11.2.5 ThermalDerating48Vin
- 11.2.7 LoadRegulation5VoutFPWM
- 11.2.9 LoadRegulation5VoutPFM
- 11.2.11 LineRegulation5VoutFPWM
- 11.2.13 LineRegulation5VoutPFM
- 12 BLOCK DIAGRAM
- 13 CIRCUIT DESCRIPTION
- 14 DESIGN FLOW
- 14.1 STEP1 SettingtheOutputVoltage(V OUT)
- 14.2 STEP2 SelecttheInputCapacitor(C IN)
- 14.3 STEP3 SelecttheOutputCapacitor(C OUT)
- 14.4 STEP4 SelecttheV CC Capacitor(CVCC)
- 14.5 STEP5 SelecttheSwitchingFrequency(f SW)
- 15 MODES OF OPERATION
- 16 OUTPUT VOLTAGE RIPPLE
- 16.1 FPWMOperation
- 16.2 PFMOperation
WPME-VDMM -VariableStepDownMicroModule 3.5V - 60V Input / 0.3A Output / 0.85V - 6V Output
DESCRIPTION
The VDMM 171936001 MagI 3C Power Module provides a fully integrated DC/DC converter including the switching regulator with integrated MOSFETs, compensationandshieldedinductorinonepackage. The 171936001 offers high efficiency and delivers up to 0.3A of output current. It operates with an input voltage from 3.5V to 60V. This power module is tailor suited for space constrained applications that need a highpowerdensity. The selectable forced PWM or PFM/PWM mode allows for optimizing light load efficiency and output voltageripple. The171936001isavailableinanLGA-12package (8x5.5x2.3mm). This module has integrated protection circuitry that guards against thermal overstress with thermal shutdown. It protects against electrical damage using overvoltage, overcurrent, short-circuit and undervoltageprotections. TYPICAL APPLICATIONS
- Point-of-LoadDC-DCapplications
- Generalpurposeapplications
- Industrial,test&measurement, medicalapplications
- Systempowersupplies
- DSPs,FPGAs,MCUsandMPUssupply
- I/Ointerfacepowersupply TYPICAL CIRCUIT DIAGRAM
FEATURES
- Peakefficiencyupto86%
- Inputvoltagerange: 3.5Vto60V
- Typicalquiescentcurrent: 3µA
- Outputvoltagerange: 0.85Vto6V
- Currentcapabilityupto0.3A
- Currentmodecontrol
- Synchronousoperation
- Adjustableswitchingfrequency: 0.2to1MHz
- Syncfunctionforcustomswitchingfrequencies
- PFM/PWMmode
- Embeddedsoft-start
- Selectablespreadspectrum
- Undervoltagelockout
- Cycle-by-cyclecurrentlimit
- Short-circuitprotection
- Thermalshutdown
- Ambienttemperatureupto105°C
- Junctiontemp. range: -40°Cto125°C
- RoHSundREAChcompliant
- Complies with EN55032 / CISPR32 class B conducted andradiatedemissionsstandard VIN VOUT EN UVLO C IN C OUT R FBT FB V IN V OUT B A B C A R FBB GND A B C Module GND GND C VCC VCC FSW D D R SW D MODE/ SYNC C DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 1
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1 PINOUT
Figure1:Pinout. Table1:Pindescription. SYMBOL NUMBER TYPE DESCRIPTION FSW D1 Input Switchingfrequencyselectionpin. Connectanexternalresistortoselect theswitchingfrequency. ConnectingtheresistortoVCCenablesspread spectrumforEMIimprovement. ConnectingtheresistortoGNDdisables spreadspectrumandkeepsthefrequencyfixed. FB C1 Input Feedbackpintotheinternalerroramplifier. Thispinmustbeconnectedto theexternalresistordividertoadjusttheoutputvoltage. VCC D3 Power VCCpin. ThispinisattachedtotheoutputoftheinternalLDO.Connecta ceramiccapacitorof470nFtoVCCandGND. VIN A3 Power Inputvoltagepins. PlacetheinputcapacitorascloseaspossibletoVINand GND.Itisrecommendedtouse2x1µF/100Vcapacitors. Itis recommendedtousesmallerpackagessuchas1210. VOUT A1,B1 Power Outputvoltagepins. PlaceoutputcapacitorsascloseaspossibletoVOUT andGND.Forthermalperformanceusecopperplane(s)atthesepins. MODE/SYNC D2 Input Modeselectionpin. ConnectthispintoGNDtoenableautoPFM/PWM modeorconnectittoVCCtoenableforcedPWMmode. Thispincanbe usedassyncpintorunthepowermodulewithexternalclock. EN/UVLO B3 Input Enablepin. PullthispindowntoGNDtodisablethemodule,leavethispin floatingorapplyavoltagehigherthan1.2Vtoenablethemodule. GND C2,C3 Power Groundpins. Forproperoperationofthemodule,connectGNDpadofthe inputcapacitorwithshort,directandwideplanetothesepins. Placethe GNDinputcapacitorpadascloseaspossibletothesepins. GND A2,B2 Power Groundpins. InternallyconnectedtoC2andC3. Forheatdissipationofthe module,itisrecommendedtoconnectsuitablegroundplanewithproper numberofviastoimprovethermalperformance. DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 4
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2 ORDERING INFORMATION
Table2:Orderinginformation. ORDER CODE SPECIFICATIONS PACKAGE PACKAGING UNIT 171936001 0.3A/0.85V-6VVout LGA-12 13”Reel(1000pieces) 178936001 0.3A/0.85V-6VVout EvalBoard 1piece
3 SALES INFORMATION
Table3:Salesinformation. SALES CONTACT WürthElektronikeiSosGmbH&Co.KG EMCandInductiveSolutions Max-Eyth-Str. 1 74638Waldenburg Germany Tel. +49(0)79429450 www.we-online.com/powermodules Technicalsupport: powermodules@we-online.com DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 5
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4 ABSOLUTE MAXIMUM RATINGS
Caution: Exceedingthelistedabsolutemaximumratingsmayaffectthedevicenegativelyandmaycausepermanentdamage. Table4:Absolutemaximumratings. SYMBOL PARAMETER LIMIT UNITMIN(1) MAX(1) VIN Inputpinvoltage -0.3 63 V VOUT Outputpinvoltage -0.3 VIN+0.3 V FB Feedbackpinvoltage -0.3 5.5 V EN Enablepinvoltage -0.3 VIN+0.3 V VCC VCCpinvoltage -0.3 VIN+0.3, max. 3.6 V FSW Switchingfrequencyselectionpinvoltage -0.3 VCC+0.3 V Tstorage Assembled,non-operatingstoragetemperature -40 125 °C VESD ESDvoltage(HBM),allpins(C=100pFR=1.5k Ω)(4) -2 2 kV
5 OPERATING CONDITIONS
Operatingconditionsareconditionsunderwhichthedeviceisintendedtobefunctional. AllvaluesarereferencedtoGND. MINandMAXlimitsarevalidfortherecommendedambienttemperaturerangeof-40°Cto105°C.Typicalvaluesrepresents statisticallytheutmostprobablevaluesatthefollowingconditions: V IN =48V,V OUT =5V,C IN =2x1µFceramic,C OUT =4.7µF ceramic,TA =25°Cunlessotherwisenoted. Table5:Operatingconditions. SYMBOL PARAMETER MIN(1) TYP(3) MAX(1) UNIT VIN Inputvoltage 3.5 - 60 V VOUT Outputvoltage 0.85 - 6 V Ta Ambienttemperaturerange -40 - 105(2) °C Tj Junctiontemperaturerange -40 - 125 °C IOUT Outputcurrent(5) - - 0.3 A COUTMAX Maximumoutputcapacitance VOUT =5V - - 10 µF VOUT =3.3V - - 15 µF
6 THERMAL SPECIFICATIONS
Typicalvaluesrepresentsstatisticallytheutmostprobablevaluesatthefollowingconditions: V IN =48V,V OUT =5V,C IN =2x 1µFceramic,C OUT =4.7µFceramic,T A =25°Cunlessotherwisenoted. Table6:Thermalspecifications. SYMBOL PARAMETER TYP(3) UNIT ΘJA Junction-to-ambientthermalresistance (2) 40 K/W ΘJC Junction-to-case(top)thermalresistance (2) 23 K/W TSD Thermalshutdown,rising 165 °C Thermalshutdown,hysteresis 30 °C DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 6
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7 ELECTRICAL SPECIFICATIONS
MINandMAXlimitsarevalidfortherecommendedambienttemperaturerangeof-40°Cto105°C.Typicalvaluesrepresents statisticallytheutmostprobablevaluesatthefollowingconditions: V IN =48V,V OUT =5V,C IN =2x1µFceramic,C OUT =4.7µF ceramic,TA =25°Cunlessotherwisenoted. Table7:Electricalspecificationspart1. SYMBOL PARAMETER TEST CONDITIONS MIN(1) TYP(3) MAX(1) UNIT IOC Overcurrentlimit Slopecontributionat20% — 0.47 — A IRC Reversecurrentlimit WhenOVPisdetected — -0.15 — A TON_MIN Minimumon-time — 60 — ns Enable VEN Enablethreshold Rising 1.1 1.2 1.3 V Hysteresis — 0.2 — V Ext. Clock Sync VCLK_H Ext. clocksignalhighvoltage 2 — 5 V VCLK_L Ext. clocksignallowvoltage 0 — 1.3 V VCLK_SEL Ext. clocksignalselectionlevel Highlevel 2 — 5 V Lowlevel 0 — 1.3 V fCLK Ext. clockfrequency 200 — 1000 kHz VCC Regulator VCC LDOoutputvoltage 2.9 3.3 3.6 V Input Quiescent, No Load and Shutdown Current ISD ShutdowncurrentfromV IN VEN =GND — 2.3 — µA IQ QuiescentcurrentfromV IN VOUT ≤ 3.2V,noswitching, FPWM — 1300 — µA VOUT > 3.2V,noswitching, FPWM — 170 — µA VOUT ≤ 3.2V,noswitching, PFM — 35 — µA VOUT > 3.2V,noswitching, PFM — 3 — µA IIN-NL Noloadinputcurrent VIN =48V,V OUT =5V,FPWM — 1.7 — mA VIN =48V,V OUT =5V,PFM — 8 — µA Output Voltage VFB Voltagereference TJ =-40°C ≤ TJ ≤ 125°C 0.84 0.85 0.86 V VOVP Outputovervoltageprotection — 120 — % VOVP_Hys Outputovervoltagehysteresis — 2 — % Soft-Start tSS Soft-starttime RisingedgetoV OUT (nom.) 1.3 2 2.7 ms Switching Frequency fSW Switchingfrequency 200 — 1000 kHz Efficiency η Efficiency VIN =24V,V OUT =5V, IOUT =0.3A — 79 — % VIN =48V,V OUT =5V, IOUT =0.3A — 76 — % DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 7
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8 RoHS, REACh
Table8:RoHS,REACh. RoHS directive Directive2011/65/EUoftheEuropeanParliamentandtheCouncil ofJune8th,2011ontherestrictionoftheuseofcertainhazardous substancesinelectricalandelectronicequipment. REACh directive Directive1907/2006/EUoftheEuropeanParliamentandthe CouncilofJune1st,2007regardingtheRegistration,Evaluation, AuthorizationandRestrictionofChemicals(REACh).
9 PACKAGE SPECIFICATIONS
Table9:Packagespecifications. ITEM PARAMETER TYP(3) UNIT LeadFinish ENEPIG - - Weight - 0.27 g
10 NOTES
(1) MinandMaxlimitsare100%productiontestedat25°C.Limitsovertheoperatingtemperaturerangeareguaranteed throughcorrelationusingStatisticalQualityControl(SQC)methods. (2) Measuredwithoutheatsink. Naturalconvection(0-20LFM/0-0.1m/s)ona80x80mmtwolayerboard,with35µm (1ounce)copper. (3) Typical numbers are valid at 25°C ambient temperature and represent statistically the utmost probable values assumingaGaussiandistribution. (4) The human body model is a 100pF capacitor discharged through a 1.5Ωk resistor into each pin. Test method is per JESD-22-114. (5) Dependentonambienttemperature;see THERMALDERATING. DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 8
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11 TYPICAL PERFORMANCE CURVES
Ifnototherwisespecified,thefollowingconditionsapply: T A =25°C.
11.1 Radiated and Conducted Emissions (With EMI Input Filter)
The 171936001 power module was tested in several EMC configurations to give more realistic information about implementation in the applications. The test setup is based on CISPR16 with the limit values of CISPR32. All measurementswereperformedonthelayoutshownin DESIGNEXAMPLE andusingthecomponentslistedthere.
11.1.1 Radiated Emissions EN55032 (CISPR-32) Class B Complaint Test Setup
- MeasuredinaFullyAnechoicRoom(FAR)at3mantennadistance.
- Inputwirelength: 160cm(80cmhorizontal+80cmvertical)
- Outputwirelength: 100cm
11.1.2 Conducted Emissions EN55032 (CISPR-32) Class B Complaint Test Setup
- Measurementinputwirelength: 80cm
- Outputwirelength: 100cm DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 9
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11.1.3 Radiated Emissions
-10 Radiated Emissions in dBµV/m EN55032 Class A Limit EN55032 Class B Limit Horizontal Vertical Horizontal Figure2:Radiated emissions 171936001 (3m antenna distance) VIN = 48V, VOUT = 5V, IOUT = 0.3A with input filter. RSW is connectedtoGND.
11.1.4 Conducted Emissions
0.15 1 10 30 Frequency in MHz -10 Conducted Emissions in dBµV EN55032 Class B Quasi Peak Limit EN55032 Class B Average Limit Quasi-Peak Average Quasi-Peak Figure3:Conductedemissions171936001V IN =48V,V OUT =5V,I OUT =0.3Awithinputfilter. R SW isconnectedtoGND. DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 10
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11.2 DC Performance Curves
11.2.1 Efficiency 24V IN FPWM
0.05 0.10 0.15 0.20 0.25 0.30 Output Current in A 100Efficiency in % Vout = 0.85V Vout = 3.3V Vout = 1.8V Vout = 5V Vout = 2.5V Vout = 6V Figure4:171936001efficiencyV IN =24V,FPWMmode.
11.2.2 Efficiency 48V IN FPWM
100Efficiency in % Vout = 0.85V Vout = 3.3V Vout = 1.8V Vout = 5V Vout = 2.5V Vout = 6V Figure5:171936001efficiencyV IN =48V,FPWMmode. DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 11
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11.2.3 Efficiency 24V IN PFM
100Efficiency in % Vout = 0.85V Vout = 3.3V Vout = 1.8V Vout = 5V Vout = 2.5V Vout = 6V Figure6:171936001efficiencyV IN =24V,PFMmode.
11.2.4 Efficiency 48V IN PFM
100Efficiency in % Vout = 0.85V Vout = 3.3V Vout = 1.8V Vout = 5V Vout = 2.5V Vout = 6V Figure7:171936001efficiencyV IN =48V,PFMmode. DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 12
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11.2.5 Thermal Derating 48V IN
0 10 20 30 40 50 60 70 80 90 100 110 120 130 Ambient temperature in °C 0.1 0.2 0.3 0.4 0.5Output Current in A Vout = 3.3V Vout = 5V Vout = 3.3V Figure8:171936001outputcurrentthermalderatingV IN =48V. Note:Thermalderatinggraphsweremeasuredonthe178936001EvaluationBoard(80x80mmtwolayerboard,with35µm (1ounce)copper). PleaseseeT A limitsin OPERATINGCONDITIONS. DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 13
WPME-VDMM -VariableStepDownMicroModule 11.2.6 Load Regulation 3.3V OUT FPWM Output Current in A 3.270 3.272 3.274 3.276 3.278 3.280Output Voltage in V Vin = 24V Vin = 48V Vin = 24V Figure9:171936001loadregulationV OUT =3.3V,FPWMmode.
11.2.7 Load Regulation 5V OUT FPWM
4.960 4.965 4.970 4.975 4.980Output Voltage in V Vin = 24V Vin = 48V Vin = 24V Figure10:171936001loadregulationV OUT =5V,FPWMmode. DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 14
WPME-VDMM -VariableStepDownMicroModule 11.2.8 Load Regulation 3.3V OUT PFM Output Current in A 3.26 3.28 3.30 3.32 3.34Output Voltage in V Vin = 24V Vin = 48V Vin = 24V Figure11:171936001loadregulationV OUT =3.3V,PFMmode.
11.2.9 Load Regulation 5V OUT PFM
4.94 4.96 4.98 5.00 5.02 5.04 5.06 5.08Output Voltage in V Vin = 24V Vin = 48V Vin = 24V Figure12:171936001loadregulationV OUT =5V,PFMmode. DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 15
WPME-VDMM -VariableStepDownMicroModule 11.2.10 Line Regulation 3.3V OUT FPWM 5 10 15 20 25 30 35 40 45 50 55 60 Input Voltage in V 3.270 3.271 3.272 3.273 3.274 3.275 3.276Output Voltage in V Iout = 0.03A Iout = 0.3A Iout = 0.03A Figure13:171936001lineregulationV OUT =3.3V,FPWMmode.
11.2.11 Line Regulation 5V OUT FPWM
7 13 19 25 31 37 43 49 55 60 Input Voltage in V 4.95 4.96 4.97 4.98 4.99 5.00Output Voltage in V Iout = 0.03A Iout = 0.3A Iout = 0.03A Figure14:171936001lineregulationV OUT =5V,FPWMmode. DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 16
WPME-VDMM -VariableStepDownMicroModule 11.2.12 Line Regulation 3.3V OUT PFM 5 10 15 20 25 30 35 40 45 50 55 60 Input Voltage in V 3.27 3.28 3.29 3.30 3.31 3.32 3.33Output Voltage in V Iout = 0.03A Iout = 0.3A Iout = 0.03A Figure15:171936001lineregulationV OUT =3.3V,PFMmode.
11.2.13 Line Regulation 5V OUT PFM
7 13 19 25 31 37 43 49 55 60 Input Voltage in V 4.92 4.97 5.02 5.07 5.10Output Voltage in V Iout = 0.03A Iout = 0.3A Iout = 0.03A Figure16:171936001lineregulationV OUT =5V,PFMmode. DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 17
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12 BLOCK DIAGRAM
V EA VIN GND EN UVLO FB VOUT A A B C B C A B µH R FBT R FBB V IN COMP SS OSCILLATOR OCP detect OCP ref V OUT SS OTP SS UVLO C C OUT C IN SS Slope Comp PFM PWM Modulator Drivers Logic circuitries FSW VCC LDO SS Output OVP R SW C VCC D D MODE SYNC D Figure17:171936001blockdiagram.
13 CIRCUIT DESCRIPTION
TheWPME-VDMM171936001powermoduleis aDC-DCpowersupply includingthe switchingregulatorwithintegrated MOSFETs,controllerandcompensation,aswellastheshieldedinductorintegratedinonepackage. Thecontrolschemeis basedonacurrentmode(CM)regulationloop. The VOUT of the regulator is divided by the feedback resistor network RFBT and RFBB and fed into the FB pin. The error amplifiercomparesthissignalwiththeinternal0.85Vreference. Theerrorsignalisamplifiedandcontrolstheon-timeofa fixedfrequencypulsewidthgenerator. ThissignaldrivesthepowerMOSFETs. The current mode architecture features a constant frequency during load steps. Only the on-time is modulated. It is internallycompensatedandstablewithlowESRoutputcapacitorsandrequiresnoexternalcompensationnetwork. Thisarchitecturesupportsfasttransientresponseandverysmalloutputvoltageripples(<10mV p-p)areachieved. DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 18
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14 DESIGN FLOW
Thefollowingsimplestepswillshowhowtoselecttheexternalcomponentstodesignthe171936001intoanapplication. Essential Steps 1. Setoutputvoltage 2. Selectinputcapacitor 3. Selectoutputcapacitor 4. SelectVCC capacitor 5. Setswitchingfrequency Optional Steps 6. SettheUVLOlevel(seesubsection EnableandIntegrated/AdjustableUVLO ) VIN VOUT EN UVLO C IN C OUT R FBT FB V IN V OUT B A B C A R FBB GND A B C Module GND GND C VCC VCC FSW D D R SW D MODE/ SYNC C Figure18:Designflowschematic. DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 19
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14.1 STEP 1 Setting the Output Voltage (VOUT)
TheoutputvoltageisselectedwithanexternalresistordividerbetweenV OUT andGND(seecircuitbelow). Thevoltageacross thelowerresistorofthedividerisprovidedtotheFBpinandcomparedwithareferencevoltageof0.85V(V REF). Theoutput voltageadjustmentrangeisfrom0.85Vto6V.Theoutputvoltagecanbecalculatedaccordingtothefollowingformula: V OUT = V REF · (RFBT RFBB + 1 (1) Oneresistormustbechosenandthentheotherresistorcanbecalculated. Forexample,ifR FBT =510kΩ thentheresistance valueofthelowerresistorinthefeedbacknetworkisindicatedinthetablebelowforcommonoutputvoltages. Table10:171936001outputvoltageselection. RFBB (E96) (kΩ) Open 1200 453 261 178 105 V OUT GND VOUT R FBT MODULE R FBB FB A2, B2, C2, C3 Figure19:Outputvoltageselectionschematic.
14.2 STEP 2 Select the Input Capacitor (CIN)
Theenergyattheinputofthepowermoduleisstoredintheinputcapacitor. AnMLCC(multi-layerceramiccapacitor)input capacitors (2x 1µF) is required externally to provide cycle-by-cycle switching current and to support load transients. The externalinputcapacitormustbeplaceddirectlyattheVINpinandconnectedwithwideandshortplane/trace,asshownin the design example (see subsectionLayout). Attention must be paid to the voltage, frequency, temperature derating and thermal class of the selected capacitor. The Würth Elektronik 885012209069 MLCC has been experimentally verified to workwiththispowermodule. ForproperoperationGNDconnectionofCINshouldbeascloseaspossibletoGNDpinsC2 andC3. Ifbiggercapacitorpackagesareusedattentionshouldbepaidtotheparasiticinductance.
14.3 STEP 3 Select the Output Capacitor (COUT)
Theoutputcapacitorshouldbeselectedinordertominimizetheoutputvoltagerippleandtoprovideastablevoltageatthe output. Italsoaffectstheloopstability. Differentoutputcapacitorsarerecommendeddependingontheoutputvoltageand switchingfrequencyselectedforanapplication. Attentionmustbepaidtothevoltage,frequencyandtemperaturederating andthermalclassoftheselectedcapacitor. Ingeneral,theoutputvoltageripplecanbecalculatedusingthefollowingequation: DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 20
WPME-VDMM -VariableStepDownMicroModule V OUT,ripple = ∆IL · ESR + ∆IL · ( 1 8 · fSW · COUT (2) where∆IL istheinductorcurrentrippleandcanbecalculatedwiththefollowingequation: ∆IL = V OUT · (V IN − V OUT) fSW · L · V IN (3) The following table shows common output voltage values and their corresponding recommended output capacitance. These capacitance values have all been experimentally verified for their corresponding output voltages. Use of different outputcapacitorsforagivenoutputvoltagerequiresthedesignertoverifytheselectedcapacitor(s)forfunctionality. These capacitors can all be found within the Würth Elektronik capacitor portfolio, specifically the WCAP-CSGP and WCAP-PSLP families. Table11:171936001outputcapacitorselection. COUT 82µFpolymer capacitor +3x4.7µF MLCC(6.3V) 82µFpolymer capacitor +3x4.7µF MLCC(6.3V) 15µFpolymer capacitor +3x4.7µF MLCC(6.3V) 3x4.7µFMLCC (10V) 2x4.7µFMLCC (10V) 4.7µFMLCC (10V) Usingtherecommendedoutputcapacitors,thetransientresponseofthepowermodulecanappearasfollows: 200 400 600 800 1000 1200 time in µs -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Voltage in V -0.4 -0.3 -0.2 -0.1 0.1 0.2 0.3 0.4 Current in A Vout Iout Figure20:171936001transientresponseV IN =48V,V OUT =5V,I OUT =0.03Ato0.3A,C OUT =4.7µF,FPWMmode. DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 21
WPME-VDMM -VariableStepDownMicroModule 200 400 600 800 1000 1200 time in µs -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Voltage in V -0.4 -0.3 -0.2 -0.1 0.1 0.2 0.3 0.4 Current in A Vout Iout Figure21:171936001transientresponseV IN =48V,V OUT =5V,I OUT =0.03Ato0.3A,C OUT =4.7µF,PFMmode.
14.4 STEP 4 Select the VCC Capacitor (CVCC)
The 171936001 MagI3C Module requires a capacitor (CVCC) to be placed at the VCC pin to support the internal LDO integratedinsideofthemodule. Toensurestableoperationandoptimumperformanceacrosstheentirefunctionalrange,a 0.47µFcapacitorisrecommended. TheWürthElektronik885012207049capacitorhasbeenexperimentallyevaluatedfor performanceandistherecommendedchoice.
14.5 STEP 5 Select the Switching Frequency (fSW)
Theswitchingfrequencymustbeselectedaccordingtotheoutputvoltageforthebestperformanceinloopregulationand transientresponse. Thisisdonebychoosingaresistorvaluefromthetablebelowbasedontheapplicationconditions. This resistorcaneitherbe tieddirectlyto GNDfora fixedswitchingfrequency, indicatedin thetablebelow, orit canbetiedto VCC, allowing for spread spectrum operation. Spread spectrum operation will allow for a change in switching frequency typicallyof ± 5%. Thepeaksoftheswitchingspectrumwillbereducedandspread,reducingthefilternecessarytocomply withEN55032RadiatedandConductedStandards. ThedifferenceinEMIbehaviorcanbeseeninthe EMIsectionofthedata sheet. Table12:171936001switchingfrequencyselection. Switching Frequency (kHz) 200 200 400 500 700 1000 RSW (kΩ) 1.8 1.8 3.3 5.6 10 0 WhenRSW isindicatedas0k Ω,FSWshouldbetieddirectlytoGNDorVCC. For high conversion ratios, when the input voltage gets very close to the full input voltage, the minimum on-time will be violated. In order to maintain a proper operation of the power module, the minimum on-time is masked and pulses are skipped, even under FPWM operation. Sticking to the recommended switching frequency results in minimizing the range wheremaskingtheon-timeandpulseskippingtakesplace. Thesevalueshavebeenexperimentallyvalidatedforoptimum performance with the given output voltages. Deviation from the recommendations is taken at the user’s own risk and shouldbeexperimentallyevaluatedinthedesignatedapplicationtoensureproperfunctionality. DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 22
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15 MODES OF OPERATION
The 171936001 power module has two different modes of operation and the transition takes place automatically depending on the load current value. Under light load conditions, the module operates in PFM mode where the Module runs at a lower switching frequency to reduce the current consumption, which leads to achieving a higher efficiency. The PFM control is achieved by creating a single pulse to turn on the high side switch while monitoring the inductor current. Thehighsideswitchiskeptonuntiltheinductorcurrenthitsapresetvalueof80mA(typ.). After reaching this value, the high side switch is turned off and the low side switch turns on. The inductor current decreases until it reaches zero. When the inductor current reaches zero, both switches are turned off (idle time) and the outputcapacitorsolelysuppliestheloadwithenergy. Whiletheenergyissuppliedtotheload,theoutputvoltagestartsto drop. The Module monitors the output voltage value and when it hits a certain limit, while the two switches are off, anotherpulseisinitiatedandthecyclerepeats. Whentheloadcurrentincreases,theidletimedecreasesandtheswitching frequencyincreasesuntilthenominalswitchingfrequencyisreachedandtheModuletransitionstoPWMmode. The module will only transfer to PFM mode if the MODE/SYNC pin is connected to GND otherwise by connecting the MODE/SYNCpintoVCCthemoduleisforcedtostayinPWMoperationevenunderlightloadcondition. At higher values of Vin the minimum on time can be violated. When this happens the power module will skip pulse even duringFPWMtokeeptheoutputvoltageinregulation. DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 23
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16 OUTPUT VOLTAGE RIPPLE
If the power module is working in PWM mode, the output voltage ripple is very low and is determined by the switching frequency,whichissetbytheresistorR SW. IftheloadcurrentislowenoughtobeinthePFMmodeofoperationthenthe outputvoltageripplewillbehigherwithafrequencylowerthanthenominalswitchingfrequency(seepicturesbelow). The modulewillonlytransfertoPFMmodeiftheMODE/SNYCpinisconnectedtoGNDotherwisebyconnectingtheMODE/SNYC pintoVCCthemoduleisforcedtostayinPWMoperationevenunderlightloadcondition.
16.1 FPWM Operation
time in µs -10 10Voltage in mV Figure22:171936001outputvoltagerippleV IN =48V,V OUT =5V,I OUT =0.3A,C OUT =4.7µF,FPWMmode.
16.2 PFM Operation
time in µs -100 -80 -60 -40 -20 100Voltage in mV Figure23:171936001outputvoltagerippleV IN =48V,V OUT =5V,I OUT =0.03A,C OUT =4.7µF,PFMmode. DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 24
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17 PROTECTION FEATURES
17.1 Overcurrent Protection (OCP) and Short Circuit Protection (SCP)
TheMagI3C171936001powermoduleimplementsacycle-by-cyclecurrentlimit(seeI OCP inELECTRICALSPECIFICATION), which is realized through the peak current mode control architecture of the power module. The peak current of the high sideswitchandthevalleycurrentofthelowsideswitcharebothmonitored. Additionally,limitingthevalleycurrentduring an overcurrent scenario reduces the thermal stresses generated inside of the power module by reducing the rms current value. By monitoring both switch currents the user can be confident that the power module will be well protected against overcurrent and short circuit scenarios even in the most extreme conditions of operation, such as very high or low duty cycles. Underverylowdutycycleconditions,thepeakcurrentcanexceedtheovercurrentpresetvalue. Whenthisoccurs, thelowsideswitchisturnedonuntilthecurrentdropsbelowthepresetvalleycurrentvalue. Thisbehaviormayresultin pulse skipping, temporarily decreasing the effective switching frequency in order to better protect the power module duringovercurrentscenarios. 100 time in µs 2.5 5.0 7.5 10.0Voltage in V 0.2 0.4 0.6 0.8 1.0 Current in A Vout Iout Figure24:171936001overcurrentprotectionV IN =48V,V OUT =5V,I OUT =0Ato0.47A. DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 25
WPME-VDMM -VariableStepDownMicroModule 100 200 300 400 500 600 time in ms 2.5 5.0 7.5Voltage in V Figure25:171936001shortcircuitprotectionV IN =48V,V OUT =5V.
17.2 Output Overvoltage Protection (OVP)
TheMagI3CModuleimplementsovervoltageprotection. Whentheoutputvoltageexceedsthedesiredvaluebytyp. 20%the low side switchis turned on allowing dischargingthe output voltage. While the output voltage is dischargedthe lowside switchcurrentismonitoredtopreventoverstressingthelowsideswitch. Whentheoutputvoltagegetsbacktothedesired valuethenormalswitchingbehaviorcontinues.
17.3 Over Temperature Protection (OTP)
Thermal protection helps prevent catastrophic failures due to accidental device overheating. The junction temperature of theMagI3CModuleshouldnotbeallowedtoexceeditsmaximumratings. Thermalprotectionisimplementedbyaninternal thermalshutdowncircuit,whichactivateswhenthejunctiontemperaturereaches165°C(typ). Underthethermalshutdown conditionbothMOSFETsremainoff,causingtheoutputvoltagetodrop. Whenthejunctiontemperaturefallsbelow135°C (typ)theinternalsoft-startisreleased,V OUT risessmoothly,andnormaloperationresumes. DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 26
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17.4 Soft-Start
The MagI3C power module implements an internal soft-start in order to limit the inrush current and avoid output voltage overshootduringstart-up. Thetypicaldurationofthesoft-startisaround2ms(seeFigure 27below). 0 2 4 6 8 10 12 time in ms 50Voltage in V Vin Vout Vin Figure26:171936001soft-startV IN =24V,V OUT =5V. The MagI3C power module supports prebiased start-up, where the output capacitor is precharged. The module does not sinkcurrentfromtheoutputduringsoft-start,regardlessifthepowermoduleoperatesunderPFM/PWMorFPWMmode. Incaseofaprebiasedoutput,switchingactivitiesstopuntiltheincreasinginternalreferenceexceedstheprebiasedoutput voltage. Atthispoint,theswitchingactivityisenabledtocompletetheoutputcapacitorchargeuptotheprogrammedvalue. time in ms 2.5 5.0 7.5 10.0 12.5 15.0Output Voltage in V -20 -16 -12 Enable Voltage in V Enable voltage Vout Enable voltage Figure27:171936001prebiasedstart-upV PREBIAS =2.3V,V OUT =5V. DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 27
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17.5 Enable and Integrated/Adjustable UVLO
TheMagI3CpowermoduleisenabledbysettingtheENpinhigh. WhentheENvoltagereaches1.2Vtyp. thepowermodule begins switching and the internal soft-start regulates the output voltage rise until the desired output voltage is met, allowingnormaloperationtotakeplace. Thedeviceincorporatesaninternalinputundervoltagelockout(UVLO)toprotectfromunexpectedbehavioratinputvoltages belowtherecommendedvalues. ThethresholdsoftheinternalUVLOareindicatedinthe ELECTRICALSPECIFICATIONS. An additional UVLO threshold of the power module can be externally set by adding a resistor between VIN and EN and a second resistor between EN and GND. This voltage divider should be chosen so that the desired minimum input voltage correspondsto1.2VatEN. Thetworesistorsshouldbechosenbasedonthefollowingratio: RENT RENB = V UVLO(EXT.) 1.2 − 1 (4) VUVLO(EXT.) =User-programmableinputvoltagethresholdtoenableanddisablethepowermodule Thisisoftenusedinbattery-poweredsystemstopreventdeepdischargeofthesystembattery. Itisalsousefulinsystem designs with output rail sequencing or to prevent early turn-on of the supply as the main input voltage rail rises at power-up. Most systems will benefit by using the precision Enable threshold to establish a system undervoltage lockout basedonspecificapplicationparameters. Inthecaseofsequencingsupplies,thedividerisconnectedtoarailthatbecomesactiveearlierinthepower-upcyclethan theMagI3Cpowermoduleoutputrail. TherecommendedapproachistochooseaninputUVLOlevelthatishigherthanthe targetregulatedoutputvoltageforthestage. DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 28
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17.6 External Clock Synchronization (Sync)
The 171936001 MagI3C power module allows synchronization of the power module’s switching frequency with an external clock source as a reference. This feature is beneficial when the user requires a switching frequency other than those offered by default by the power module, for instance to better optimize performance factors such as EMI for a specificapplication. TorealizethisfeatureanexternalclockisdirectlyconnectedtotheMODE/SYNCpin. Iftheexternalclockisinterrupedfor 14µstheinternalclockdeterminedbytheexternalresistortoselecttheswitchingfrequencyactivates. Theexternalclock isspecifiedinthe ELECTRICALSPECIFICATIONS section. It is recommended to use the default switching frequency, through the resistor RFSW, closest to the external source frequency. The value of RENT is calculated to choose the UVLO value as explained in the Enable/Adjustable UVLO section above. The minimum on-time and the maximum duty cycle for the external clock source are specified in theELECTRICAL SPECIFICATIONS. MODE SYNC GND Module GND Ext ernal source A B C D C Figure28:171936001synctoexternalsignalschematic. DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 29
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18 DESIGN EXAMPLE
Thedesignexampleshowsapossiblesolutionfor48Vto5Vwithamaximumoutputcurrentof0.3AoperatinginPFM/PWM mode. AllofthenecessarycomponentstofulfilltherequirementsoftheCISPR32EMIconducted-andradiatedemissions testsareincludedinthedesignexample. ItpassestheconductedemissionsclassBwith0.8minputand1moutputlines. Filtercomponentsmaybeomitteddependingontherequirementsofthefinalapplication. Further,theEMIfilterisneeded incasetheinputvoltagesupplyingtheapplicationisexpectedtohaveveryfasttransitionswhichmayhavenegativeimpact ontheoperationofthepowermodule.
18.1 Layout
Figure29:171936001layoutrecommendation. Theimageaboveshowsthetoproutedlayerforarecommendedtwolayerlayout. ThebottomlayerisusedasGNDplaneand filledwithcopper. Itshowsapossiblelayoutforthe171936001MagI 3Cpowermodule,wherethespreadspectrumfeature forimprovedEMIperformanceisdisabled. Nevertheless,somerecommendationsshouldbefollowedwhendesigningthe layout: 1. TheinputandoutputcapacitorsshouldbeplacedascloseaspossibletotheVINandVOUTpinsofthedevice. 2. TheGNDconnectionoftheinputcapacitorsshouldbeplacedascloseaspossibletoGNDpinsC2andC3. 3. ThefeedbackresistordividershouldbeplacedascloseaspossibletotheFBpin. 4. Avoidplacingviasinanyofthepadsforthemodule. 5. ConnectVinpadsoftheinputcapacitorwithwideandshortplane/trace. 6. UseaswideGNDplanepossibletoensurestableoperationofthepowermodule. 7. Use an uninterrupted GND plane on bottom layer, connected with adequate number of vias to top layer to improve thermalperformanceandEMIbehavior. 8. To avoid direct coupling of the DC/DC converter´s E- and H-fields into connectors, the susceptible components and tracesmustbeplacedasfarawayfromthemoduleaspossible. DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 30
WPME-VDMM -VariableStepDownMicroModule
18.2 Schematic
0.3A Figure30:171936001designexampleschematic.
18.3 Bill of Materials
Table13:171936001designexamplebillofmaterials. Designator Description Function Quantity Order Code Manufacturer U1 MagI3Cpowermodule Powersupply 1 171936001 WE L1 Filterinductor,2.2µH,PD2 family,ISAT =3.38A,I R =2.5A Inputfilter 1 744773022 WE C1 Ceramicchipcapacitor1µF, 100V,X7R,1210 Inputfilter 2 885012209069 WE C2 Aluminumpolymercapacitor 12µF,100V Inputfilter 1 875115957002 WE C3 Ceramicchipcapacitor1µF, 100V,X7R,1210 Eletrical performance 2 885012209069 WE C4 Ceramicchipcapacitor4.7µF, 16V,X7R,1210 Eletrical performance 1 885012209013 WE C5 Ceramicchipcapacitor0.47µF, 16V,X7R,0805 Eletrical performance 1 885012207049 WE R1 0Ω Electrical performance 1 — — R2 510kΩ Electrical performance 1 — — R3 105kΩ Electrical performance 1 — — DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 31
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19 HANDLING RECOMMENDATIONS
- The power module is classified as MSL3 (JEDEC Moisture Sensitivity Level 3) and requires special handling due to moisturesensitivity(JEDECJ-STD033D). 2. Thepartsaredeliveredinasealedbag(MoistureBarrierBag=MBB)andshouldbeprocessedwithinoneyear. 3. Whenopeningthemoisturebarrierbag,checktheHumidityIndicatorCard(HIC)forcolorstatus. Bakepartspriorto solderingincaseindicatorcolorhaschangedaccordingtothenotesonthecard. 4. Partsmustbeprocessedafter168hour(7days)offloorlife. Oncethistimehasbeenexceeded,bakepartspriorto solderingperJEDECJ-STD033Drecommendation. 5. Maximumnumberofsoldercyclesistwo. 6. Forminimumrisk,solderthemoduleinthelastsoldercycleofthePCBproduction. 7. ForsolderingprocesspleaseconsiderleadmaterialNiPdAuandleadfinishENEPIG. 8. ItisrecommendedtouseastandardSACAlloysuchasSAC305,type3orhigher. 9. Theprofilebelowisvalidforconvectionreflowonly. 10. Othersolderingmethods(e.g. vaporphase)arenotverifiedandhavetobevalidatedbythecustomerattheirownrisk.
20 SOLDER PROFILE
Table14:Reflowsolderprofile. Profile Feature Symbol Value Preheattemperatureminimum Ts_min 150°C Preheattemperaturemaximum Ts_max 200°C PreheattimefromT s_min toTs_max ts 60-120seconds Liquidoustemperature TL 217°C TimemaintainedaboveT L tL 60-150seconds Classificationtemperature TC 260°C Peakpackagebodytemperature TP TP ≤ TC Timewithin5°Cofactualpeak temperature tP tP ≤ 30seconds Ramp-upRate(T L toTp) 3°C/secondmaximum Ramp-downrate(T p toTL) 6°C/secondmaximum Time25°Ctopeaktemperature 8minutesmaximum PleaserefertoJEDECJ-STD020Eforfurtherinformationpertainingtoreflowsolderingofelectroniccomponents. Temperature [°C] Time [Seconds] tL tS Ts_min Ts_max TP TL tP tP User TP ≤T C Figure31:Solderprofile. DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 32
WPME-VDMM -VariableStepDownMicroModule
21 PHYSICAL DIMENSIONS
21.1 Component
1.5 0.75 1.5 3.0 8.0 2.4 max. 0.22 ref. 2.1 ref. 5.5 O0.75 ref. Figure32:Physicaldimensions. Alldimensionsinmm Tolerances±0.1mmunlessotherwisespecified DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 33
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21.2 Example Landpattern
1.5 0.75 1.5 3.0 O0.75 Figure33:Examplelandpatterndesign. Alldimensionsinmm Stencilthicknessof100µm DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 34
WPME-VDMM -VariableStepDownMicroModule
21.3 Packaging
End StartFeeding direction A A T Carrier Tape Cover Tape W F E2 E1 D1 P1 D0 P2 No Component min. 160mm Components No Component min. 100mm Cover Tape min. 400mm Top Cover Tape Figure34:Tape. Table15:Tapedimensions. Tape Type A0 B0 W T T1 T2 K0 P0 P1 P2 D0 D1 E1 E2 F Material typ. typ +0.3/ Alldimensionsinmm DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 35
WPME-VDMM -VariableStepDownMicroModule Reel B D C close to center N A detail B Embossment Sprocket Hole Chip Cavity Cover TapeB Figure35:Reel. Table16:Reeldimensions. A B C D N W1 W2 W3 W3 Material Alldimensionsinmm DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 36
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22 DOCUMENT HISTORY
Table17:Documenthistory. Revision Date Description Comment
1.0 July2024 Initialdatasheetrelease
DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 37
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23 LIST OF FIGURES
DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 38
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24 LIST OF TABLES
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25 CAUTIONS AND WARNINGS
The following conditions apply to all goods within the product series of MagI3C of Würth Elektronik eiSos GmbH & Co. KG: General:
- Allrecommendationsaccordingtothegeneraltechnicalspecificationsofthedata-sheethavetobecompliedwith.
- Theusageandoperationoftheproductwithinambientconditionswhichprobablyalloyorharmthecomponentsurface hastobeavoided.
- The responsibility for the applicability of customer specific products and use in a particular customer design is always withintheauthorityofthecustomer. Alltechnicalspecificationsforstandardproductsdoalsoapplyforcustomerspecific products
- Residualwashingvarnishagentthatisusedduringtheproductiontocleantheapplicationmightchangethecharacteristics ofthebody,pinsortermination. Thewashingvarnishagentcouldhaveanegativeeffectonthelongtermfunctionofthe product. Directmechanicalimpacttotheproductshallbepreventedasthematerialofthebody,pinsorterminationcould flakeorintheworstcaseitcouldbreak. Asthesedevicesaresensitivetoelectrostaticdischargecustomershallfollow properICHandlingProcedures.
- Customer acknowledges and agrees that it is solely responsible for compliance with all legal, regulatory and safety-relatedrequirementsconcerningitsproducts,andanyuseofWürthElektronikeiSosGmbH&Co.KGcomponents in its applications, notwithstanding any applications-related information or support that may be provided by Würth ElektronikeiSosGmbH&Co.KG.
- Customer represents and agrees that it has all the necessary expertise to create and implement safeguards which anticipatedangerousconsequencesoffailures,monitorfailuresandtheirconsequenceslessenthelikelihoodoffailures thatmightcauseharmandtakeappropriateremedialactions
- CustomerwillfullyindemnifyWürthElektronikeiSosanditsrepresentativesagainstanydamagesarisingoutoftheuse ofanyWürthElektronikeiSosGmbH&Co.KGcomponentsinsafety-criticalapplications Product specific: Followallinstructionsmentionedinthedatasheet,especially:
- The solder profile has to comply with the technical reflow or wave soldering specification, otherwise this will void the warranty.
- Allproductsaresupposedtobeusedbeforetheendoftheperiodof12monthsbasedontheproductdate-code.
- Violationofthetechnicalproductspecificationssuchasexceedingtheabsolutemaximumratingswillvoidthewarranty.
- Itisalsorecommendedtoreturnthebodytotheoriginalmoistureproofbagandresealthemoistureproofbagagain.
- ESDpreventionmethodsneedtobefollowedformanualhandlingandprocessingbymachinery. Disclaimer: Thiselectroniccomponenthasbeendesignedanddevelopedforusageingeneralelectronicequipmentonly. Thisproductis notauthorizedforuseinequipmentwhereahighersafetystandardandreliabilitystandardisespeciallyrequiredorwhere afailureoftheproductisreasonablyexpectedtocauseseverepersonalinjuryordeath,unlessthepartieshaveexecutedan agreementspecificallygoverningsuchuse. MoreoverWürthElektronikeiSosGmbH&Co.KGproductsareneitherdesigned norintendedforuseinareassuchasmilitary,aerospace,aviation,nuclearcontrol,submarine,transportation(automotive control,traincontrol,shipcontrol),transportationsignal,disasterprevention,medical,publicinformationnetworketc. Würth ElektronikeiSosGmbH&Co.KGmustbeinformedabouttheintentofsuchusagebeforethedesign-instage. Inaddition, sufficientreliabilityevaluationchecksforsafetymustbeperformedoneveryelectroniccomponentwhichisusedinelectrical circuitsthatrequirehighsafetyandreliabilityfunctionsorperformance. Thesecautionsandwarningscomplywiththestate ofthescientificandtechnicalknowledgeandarebelievedtobeaccurateandreliable. However,noresponsibilityisassumed forinaccuraciesorincompleteness. DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 40
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26 IMPORTANT NOTES
General Customer Responsibility Some goods within the product range of Würth Elektronik eiSos GmbH & Co. KG contain statements regarding general suitabilityforcertainapplicationareas. Thesestatementsaboutsuitabilityarebasedonourknowledgeandexperienceof typical requirements concerning the areas, serve as general guidance and cannot be estimated as binding statements about the suitability for a customer application. The responsibility for the applicability and use in a particular customer design is always solely within the authority of the customer. Due to this fact it is up to the customer to evaluate, where appropriatetoinvestigateanddecidewhetherthedevicewiththespecificproductcharacteristicsdescribedintheproduct specificationisvalidandsuitablefortherespectivecustomerapplicationornot. Accordingly,thecustomeriscautionedto verifythatthedatasheetiscurrentbeforeplacingorders. Customer Responsibility Related to Specific, in Particular Safety-Relevant, Applications Ithastobeclearlypointedoutthatthepossibilityofamalfunctionofelectroniccomponentsorfailurebeforetheendofthe usuallifetimecannotbecompletelyeliminatedinthecurrentstateoftheart,eveniftheproductsareoperatedwithinthe rangeofthespecifications. Incertaincustomerapplicationsrequiringaveryhighlevelofsafetyandespeciallyincustomer applications in which the malfunction or failure of an electronic component could endanger human life or health it must beensuredbymostadvancedtechnologicalaidofsuitabledesignofthecustomerapplicationthatnoinjuryordamageis causedtothirdpartiesintheeventofmalfunctionorfailureofanelectroniccomponent. Best Care and Attention Anyproduct-specificnotes,warningsandcautionsmustbestrictlyobserved. Anydisregardwillresultinthelossofwarranty. Customer Support for Product Specifications Some products within the product range may contain substances which are subject to restrictions in certain jurisdictions inordertoservespecifictechnicalrequirements. Necessaryinformationisavailableonrequest. Inthiscasethefieldsales engineerortheinternalsalespersoninchargeshouldbecontactedwhowillbehappytosupportinthismatter. Product R&D Due to constant product improvement product specifications may change from time to time. As a standard reporting procedure of the Product Change Notification (PCN) according to the JEDEC-Standard we inform about minor and major changes. IncaseoffurtherqueriesregardingthePCN,thefieldsalesengineerortheinternalsalespersoninchargeshould becontacted. ThebasicresponsibilityofthecustomerasperSection1and2remainsunaffected. Product Life Cycle Due to technical progress and economical evaluation we also reserve the right to discontinue production and delivery of products. AsastandardreportingprocedureoftheProductTerminationNotification(PTN)accordingtotheJEDECStandard we will inform at an early stage about inevitable product discontinuance. According to this we cannot guarantee that all productswithinourproductrangewillalwaysbeavailable. Thereforeitneedstobeverifiedwiththefieldsalesengineeror the internal sales person in charge about the current product availability expectancy before or when the product for application design-in disposal is considered. The approach named above does not apply in the case of individual agreementsdeviatingfromtheforegoingforcustomer-specificproducts. Property Rights AlltherightsforcontractualproductsproducedbyWürthElektronikeiSosGmbH&Co.KGonthebasisofideas,development contracts as well as models or templates that are subject to copyright, patent or commercial protection supplied to the customerwillremainwithWürthElektronikeiSosGmbH&Co.KG.WürthElektronikeiSosGmbH&Co.KGdoesnotwarrantor representthatanylicense,eitherexpressedorimplied,isgrantedunderanypatentright,copyright,maskworkright,orother intellectualpropertyrightrelatingtoanycombination,application,orprocessinwhichWürthElektronikeiSosGmbH&Co.KG componentsorservicesareused. General Terms and Conditions Unless otherwise agreed in individual contracts, all orders are subject to the current version of the “General Terms and ConditionsofWürthElektronikeiSosGroup”,lastversionavailableatwww.we-online.com. DatasheetVersion1.0 ©July2024 www.we-online.com/powermodules 41