Low-Voltage MIL-COTS Input Filter Module

1 LV MFM FilterLow- voltage MIL-COTS Input Filter ModuleMFM1714x50M50C5yzzLV MFM Filter Rev 1 of 16 07/2018 Features & Benefits 28V nominal Input 99% efficiency EMI filtering MIL-STD-461E/F, selected CE and CS tests Input transient protection MIL-STD-1275A/B/D/E MIL-STD-704A/F (MIL-HDBK-704-8)Normal and abnormal transients Envronmental qualification MIL-STD-810 MIL-STD-202 Low M-Grade temperature rating,providing operation down to 55 C Output power up to 350W Available in chassis and PCB mount Small size x x [ x x ]Typical Applications Defense AerospaceCompatible Products Low Input voltage DCM3414 VIA Low Input voltage ChiP [a] DCMP roduct DescriptionThe MFM DCM Filter is a DC front-end Module that provides EMI filtering and transient protection.

2 The MFM DCM Filter enables designers using Vicor 28V nominal Input voltage VIA or ChiP [a] modules to meet conducted emission/conducted susceptibility per MIL-STD-461E/F; and Input transients per MIL-STD-704A/F, MIL-STD-1275A/B/D/E and DO-160E. The MFM DCM Filter accepts an Input voltage of 16 50 VDC (28V nominal Input ) and delivers output power up to x x [ x x ]Part Ordering InformationProductFunctionPackage LengthPackageWidthPackageTypeMaxHighSide VoltageHigh Side VoltageRangeRatioMax LowSide VoltageMaxLowSide CurrentProductGrade(Case Temperature)Option FieldMFM1714x50M50C5yzzMFM = MIL-COTS Input Filter ModuleLength in Inches x 10 Width in Inches x 10B = Board VIAV = Chassis VIAI nternal ReferenceM = 55 to 100 C00 = Chassis04 = Short Pin08 = Long Pin[a]

3 Additional components are required for EMI filtering and transientsuppression, when used with ChiP package MFM Filter Rev 2 of 16 07/2018 MFM1714x50M50C5yzz16 50 VSource VDDEEN TR SENSE +SENSE LOADMFM+IN +OUTEMI GND IN+IN IN OUT+OUT OUTearth ground DCM3414 VIA CINCIN-DCMCOUT-EXTFM-Grade DCM3414 VIA with an MFM Input Filter , to meet the EMI and transient requirementsTypical ApplicationParts List for Typical ApplicationsFEATON (Cooper/Bussman) ABC series, fast-acting tube fuses rated 30 ALittlefuse NANO2 456 Series, surface-mount fuses rated 30 ALV MFM Filter Rev 3 of 16 07/2018 MFM1714x50M50C5yzzMFM1714 Filter Chassis (Lug) Mount Terminals UpMFM1714 Filter PCB Mount Pins Down+IN IN+OUT OUTEMIGND IN+IN OUT+OUTEMIGNDPin ConfigurationPin DescriptionsSignal NameTypeFunction+ININPUT POWERP ositive Input power terminal ININPUT POWER RETURNN egative Input power terminalEMI GNDEMI GROUNDEMI ground terminal+OUTOUTPUT POWERP ositive output power terminal OUTOUTPUT POWER RETURNN egative output power terminalNote.

4 These pin drawings are not to MFM Filter Rev 4 of 16 07/2018 MFM1714x50M50C5yzzAbsolute Maximum RatingsThe absolute maximum ratings below are stress ratings only. Operation at or beyond these maximum ratings can cause permanent damage to the device. Electrical specifications do not apply when operating beyond rated operating voltage (+IN to IN)Continuous per MIL-STD-1275D/E, 50ms100 Transient per MIL-STD-1275A/B/D, 70 s250 Transient per DO-160E, 100ms80 Output voltage (+OUT to OUT)Continuous Withstand ( Input /Output to EMI GND/Case)1500 VDCS torage TemperatureM-Grade 65125 CInternal Operating TemperatureM-Grade 55125 CAverage Output Current22 AInput/Output Pin Torque and Mounting Torque4 ( ) ( )Electrical SpecificationsSpecifications apply over all line and load conditions, unless otherwise noted.

5 Boldface specifications apply over the temperature range of 55 C TCASE 100 C (M-Grade); all other specifications are at TCASE = 25 C unless otherwise / NotesMinTypMaxUnitPower Input / Output SpecificationInput voltage Range [b]VINC ontinuous operation162850 VTransient per MIL-STD-1275D/E, 50ms100 Transient per MIL-STD-1275A/B/D, 70 s250 Transient per DO-160E, 100ms80 Maximum Output Current [c]IOUT_MAXC ontinuous, at VOUT = 16V (IOUT = POUT/VIN)22 ARated Output Power [c]POUTC ontinuous, over all line conditions350 WInternal voltage Drop@16V, 22A, 100 C Full load, low line, high load, nominal line, high temperature load, high line, high [b] Transient immunity specifications are met only when LV MFM is used with M-Grade 16 50 VIN DCM3414 VIA.

6 [c] One MFM for each DCM even if the total power of the DCM is below POUT maximum MFM Filter Rev 5 of 16 07/2018 MFM1714x50M50C5yzzEMI/EMCS tandardTest ProcedureNotesMIL-STD-461E/FConducted EmmisionsCE101 Figure CE101-4, Navy ASW & Army Aircraft, Curve #2 (28 VDC or below)CE102 Figure CE102-1, Basic curve for all applicationsConducted SusceptibilityCS101 Figure CS101, Curve #2, for all applications (28 VDC or below)MIL-STD-1275 Transient Immunity [d]MIL-STD-1275A/B/D/E100 VDC for 50ms duration250 VDC for 70 sMIL-STD-704 Transient Immunity [d]MIL-STD-704A (MIL-HDBK-704-8) Normal voltage TransientsFrom table LDC 105-II (A-J) overvoltage 70 VDC for 20ms duration; within the MIL-STD-1275 (100V for 50ms) transient conditionMIL-STD-704B/C/D/E/F (MIL-HDBK-704-8) Normal voltage TransientsFrom table LDC 105-III (AA-RR) overvoltage 50 VDC for duration, undervoltage 18 VDC for 15ms duration; within the normal operating Input voltage rangeMIL-STD-704A (MIL-HDBK-704-8) Abnormal voltage TransientsFrom table LDC 302-II (A-J) overvoltage 80 VDC for 50ms duration.

7 Within the MIL-STD-1275 (100V for 50ms) transient conditionMIL-STD-704E/F (MIL-HDBK-704-8) Abnormal voltage TransientsFrom Table LDC 302-IV (AAA-FFF), overvoltage test conditions; within the normal operating Input voltage rangeDO-160 ETransient Immunity [d]DO-160E sec. 16, cat. z80 VDC for 100ms[d] Transient immunity specifications are met only when LV MFM is used with M-grade 16 50 VIN DCM3414 VIA .LV MFM Filter Rev 6 of 16 07/2018 MFM1714x50M50C5yzzTypical CharacteristicsFrequency (Hz)Common Mode-60-70-80-901k10010k100k1M10M-50-40- 30-20-100 Differential ModeAttenuation (dB) F/Hz CM-Mode DF-ModeCursor 1 100k 2 1M Impedance Mangitude Z (dB ): Output Impedance Mangitude Z ( )Frequency (Hz)Output Impedance Z (dB )Output Impedance Z ( )Figure 1 Attenuation (dB) vs.

8 Frequency (Hz), Input leads are terminated with LISN impedances 25 for common mode, 100 for differential modeFigure 2 Output impedance vs. frequency (Hz) plot looking back into the output terminals of the MFM with shorted Input terminalsLV MFM Filter Rev 7 of 16 07/2018 MFM1714x50M50C5yzzTypical Conducted EmissionsCE101 peak scans with MFM1714V50M50C5M00 and DCM3414V50M31C2T01, in either condition: OUT connected to GND or OUT Hz10 kHzSGL1 MAUnitdBA 2016 14:25 ResBW 100 HzMeas T 20 msDetMAAtt 10 dBINPUT 2100 Hz1 kHz10 kHz 10 20 30 40 50 60 70 80 90 100 110 120 130 0 140CE101-42 Date: 14:25:3930 Hz10 kHzSGL1 MAUnitdBA TrdCE101 ResBW 100 HzMeas T 20 msDetMAAtt 10 dBINPUT 2016 14.

9 06100 Hz1 kHz10 kHz 10 20 30 40 50 60 70 80 90 100 110 120 130 0 1401 Marker 1 [T1] dBA Hz 1 [T1] dBA Hz CE101-42 Date: 14:06:2730 Hz10 kHzSGL1 MAUnitdBA 2016 14:40 DetMAResBW 10 HzMeas T 20 msAtt 10 dBINPUT 2100 Hz1 kHz10 kHz 10 20 30 40 50 60 70 80 90 100 110 120 130 0 1401 Marker 1 [T1] dBA Hz 1 [T1] dBA Hz CE101-42 Date: 14:40:36 Figure 4 Peak scan for the RED lead with CIN = 2200 F, COUT-EXT = 1000 F, 0% loadFigure 7 Peak scan for the BLACK lead with CIN = 2200 F, COUT-EXT = 1000 F, 100% loadFigure 5 Peak scan for the RED lead with CIN = 2200 F, COUT-EXT = 1000 F, 100% load30 Hz10 kHzSGL1 MAUnitdBA TrdCE101 ResBW 100 HzMeas T 20 msDetMAAtt 10 dBINPUT 2016 14:21100 Hz1 kHz10 kHz 10 20 30 40 50 60 70 80 90 100 110 120 130 0 140CE101-42 Date: 14:21.

10 38 Figure 6 Peak scan for the BLACK lead with CIN = 2200 F, COUT-EXT = 1000 F, 0% loadDC Power SupplyScreenRoom/FiltersLISNLISNLV MFM+IN+OUT OUT IN+IN+OUTLoad50 Termination onSignal Output Port(One for Each LISN)EMIR eceiverCurrent ProbeEMI GND+ CINCOUTDCM3414 VIA OUT INFigure 3 A typical test set up for conducted emissions CE101 is shown above. A current probe is used to measure and plot the variations in the current through the RED and BLACK leads at various load MFM Filter Rev 8 of 16 07/2018 MFM1714x50M50C5yzzTypical Conducted Emissions (Cont.)CE102 peak scans with MFM1714V50M50C5M00 and DCM3414V50M31C2T01, in either condition: OUT connected to GND or OUT kHz10 MHzUnitdBV 2016 15:24 ResBW 10 kHzMeas T 20 msDetMAAtt 10 dBINPUT 2100 kHz1 MHz10 MHz 20 30 40 50 60 70 80 90 100 10 1101 Marker 1 [T1] dBV kHz1 [T1] dBV kHzCE10228 Date: 15:24:45 SGL1MA10 kHz10 MHzUnitdBV 2016 15:32 R