MCOTS-C-28-12-QT Single Output Quarter Brick Military COTS DC/DC Converters 16-50V 12V 10A Continuous Input Transient Input Output Output 91% @ 5A / 90% @ 10A Efficiency a pu d bl va ic n at ce io d n 16-40V Full Power Operation: -55°C to +100°C The MilQor series of MIL COTS DC/DC converters brings SynQor’s field proven high-efficiency synchronous rectification technology to the Military/Aerospace industry. SynQor’s ruggedized encased packaging approach ensures survivability in demanding environments. Compatible with the industry standard format, these converters operate at a fixed frequency, and follow conservative component derating guidelines. They are designed and manufactured to comply with a wide range of military standards Operational Features Designed and Manufactured in the USA • High efficiency, 90% at full rated load current • Operating input voltage range: 16-40 V • Fixed frequency switching provides predictable EMI • No minimum load requirement Protection Features Mechanical Features • Industry standard quarter-brick pin-out configuration • Size: 1.54" x 2.39" x 0.50" (39.0 x 60.6 x 12.7mm) • Total weight: 3 oz (85 g) Control Features Screening/Qualification • On/Off control referenced to input side • Remote sense for the output voltage • Output voltage trim range of -20%, +10% Safety Features • 2250 V, 30 MW input-to-output isolation • Certified 60950-1 requirements for basic insulation (see Standards and Qualifications page) • CE Marked • RoHS compliant Product # MCOTS-C-28-12-QT • Input under-voltage lockout • Output current limit and short circuit protection • Active back bias limit • Output over-voltage protection • Thermal shutdown Phone 1-888-567-9596 • AS9100 and ISO 9100:2000 certified facility • Qualification consistent with MIL-STD-883 • Avialable with standard or military grade screening • Pre-cap inspection per IPC-610, Class III • Temperature cycling per MIL-STD-883, Method 1010, Condition B, 10 cycles • Burn-In at 100°C baseplate temperature • Final visual inspection per MIL-STD-2008 • Full component traceability www.synqor.com Doc.# 005-0005277 Rev. 1 06/11/09 Page 1 MCOTS-C-28-12-QT Output: 12V Current: 10A Technical Specification a pu d bl va ic n at ce io d n BLOCK DIAGRAM TYPICAL CONNECTION DIAGRAM Vin External Input Filter Vin(+) Vout(+) Vsense(+) Electrolytic ON/OFF Trim Vsense(_) Vin(_) Product # MCOTS-C-28-12-QT Phone 1-888-567-9596 www.synqor.com Rtrim-up or Rtrim-down Cload Iload Vout(_) Doc.# 005-0005277 Rev. 1 06/11/09 Page 2 MCOTS-C-28-12-QT Output: 12V Current: 10A Technical Specification MCOTS-C-28-12-QT ELECTRICAL CHARACTERISTICS Tb = 25 °C, Vin = 28Vdc unless otherwise noted; full operating temperature range is -55 °C to +100 °C baseplate temperature with appropriate power derating. Specifications subject to change without notice. Parameter Min. Typ. Max. Units Notes & Conditions a pu d bl va ic n at ce io d n ABSOLUTE MAXIMUM RATINGS Input Voltage Non-Operating Operating Operating Transient Protection Isolation Voltage Input to Output Input to Base-Plate Output to Base-Plate Operating Temperature Storage Temperature Voltage at ON/OFF input pin INPUT CHARACTERISTICS Operating Input Voltage Range Input Under-Voltage Lockout Turn-On Voltage Threshold Turn-Off Voltage Threshold Lockout Voltage Hysteresis Recommended External Input Capacitance Input Filter Component Values (L\C) Maximum Input Current No-Load Input Current Disabled Input Current Response to Input Transient Input Terminal Ripple Current Recommended Input Fuse OUTPUT CHARACTERISTICS Output Voltage Set Point Output Voltage Regulation Over Line Over Load Over Temperature Total Output Voltage Range Output Voltage Ripple and Noise Peak-to-Peak RMS Operating Output Current Range Output DC Current-Limit Inception Output DC Current-Limit Shutdown Voltage Back-Drive Current Limit while Enabled Back-Drive Current Limit while Disabled Maximum Output Capacitance Output Voltage Trim Range Output Voltage Remote Sense Range Output Over-Voltage Protection DYNAMIC CHARACTERISTICS Output Voltage Deviation Load Transient For a Positive Step Change in Load Current For a Negative Step Change in Load Current Settling Time (either case) Output Voltage Deviation Line Transient For a Positive Step Change in Line Current For a Negative Step Change in Line Current Settling Time (either case) Turn-On Transient Turn-On Time Start-Up Inhibit Time Output Voltage Overshoot EFFICIENCY 100% Load 50% Load Product # MCOTS-C-28-12-QT -55 -65 -2 60 40 50 V V V 2250 2250 2250 100 135 18 V dc V dc V dc °C °C V 16 28 40 V 15.1 14.2 15.4 14.5 0.9 100 1.0\6.6 15.7 14.8 TBD V V V µF µH\µF A mA mA V mA A 12 12.12 V ±0.1 ±0.1 ±0.3 ±0.3 180 12.30 % % mV V 50 10 10 13.0 mV mV A A V A mA µF % % V 130 2 0.4 425 11.88 -180 11.70 0 0 11.0 25 6 12.0 5 0.45 TBD -20 14.04 200 Phone 1-888-567-9596 14.64 11.0 160 4 1,500 10 10 15.24 Continuous Continuous 1 s transient, square wave Baseplate temperature Baseplate temperature 50V transient for 1 s Typical ESR 0.1-0.2 Ω Internal values; see Figure E Vin min; trim up; in current limit See Figure 6 RMS Fast acting external fuse recommended Over sample, line, load, temperature & life 20 MHz bandwidth; see Note 1 Full load Full load Subject to thermal derating Output voltage 10% Low Negative current drawn from output Negative current drawn from output Vout nominal at full load (resistive load) Across Pins 8&4; Common Figures 3-5; see Note 2 Across Pins 8&4 Over full temp range 500 500 100 mV mV µs Total Iout step = 5A -> 10A 500 500 100 mV mV µs Vin step = 16V -> 50V, 9 230 0 250 90 91 www.synqor.com ms ms % Full load, Vout=90% nom. -40 °C to +125 °C; Figure E Maximum Output Capacitance % % See Figure 1 for efficiency curve See Figure 1 for efficiency curve Doc.# 005-0005277 Rev. 1 06/11/09 Page 3 MCOTS-C-28-12-QT Output: 12V Current: 10A Technical Specification MCOTS-C-28-12-QT ELECTRICAL CHARACTERISTICS Tb = 25 °C, Vin = 28Vdc unless otherwise noted; full operating temperature range is -55 °C to +100 °C baseplate temperature with appropriate power derating. Specifications subject to change without notice. a pu d bl va ic n at ce io d n ISOLATION CHARACTERISTICS Isolation Voltage (dielectric strength) See Absolute Maximum Ratings Isolation Resistance 30 MΩ Isolation Capacitance (input to output) 1000 pF See Note 2 TEMPERATURE LIMITS FOR POWER DERATING CURVES Semiconductor Junction Temperature 125 °C Package rated to 150 °C Board Temperature 125 °C UL rated max operating temp 130 °C Transformer Temperature 125 °C Maximum Baseplate Temperature, Tb 100 °C FEATURE CHARACTERISTICS Switching Frequency 230 250 270 kHz For both input and isolation stage ON/OFF Control Off-State Voltage 2.4 18 V On-State Voltage -2 0.8 ON/OFF Control Application notes Figures A & B Pull-Up Voltage 5 V Pull-Up Resistance 50 kΩ Over-Temperature Shutdown OTP Trip Point 125 °C Average PCB Temperature Over-Temperature Shutdown Restart Hysteresis 10 °C RELIABILITY CHARACTERISTICS Calculated MTBF (Telcordia) TR-NWT-000332 TBD 106 Hrs. 80% load, 200LFM, 40 °C Ta Calculated MTBF (MIL-217) MIL-HDBK-217F TBD 106 Hrs. 80% load, 200LFM, 40 °C Ta Field Demonstrated MTBF 106 Hrs. See our website for details Note 1: Output is terminated with 1 µF ceramic and 15 µF low-ESR tantalum capacitors. For applications requiring reduced output voltage ripple and noise, consult SynQor applications support (e-mail: [email protected]) Note 2: Higher values of isolation capacitance can be added external to the module. Product # MCOTS-C-28-12-QT Phone 1-888-567-9596 www.synqor.com Doc.# 005-0005277 Rev. 1 06/11/09 Page 4 MCOTS-C-28-12-QT Output: 12V Current: 10A Technical Specification 95 18 16 90 Power Dissipation (W) 14 12 a pu d bl va ic n at ce io d n Efficiency (%) 85 80 75 70 8 6 4 40 Vin 28 Vin 16 Vin 65 10 40 Vin 28 Vin 2 60 16 Vin 0 0 2 4 6 8 10 0 2 4 Load Current (A) Figure 1: Efficiency at nominal output voltage vs. load current for minimum, nominal, and maximum input voltage at 25°C. 8 10 Figure 2: Power dissipation at nominal output voltage vs. load current for minimum, nominal, and maximum input voltage at 25°C. 12 12 10 10 8 8 Iout (A) Iout (A) 6 Load Current (A) 6 4 6 4 400 LFM (2.0 m/s) 400 LFM (2.0 m/s) 300 LFM (1.5 m/s) 2 300 LFM (1.5 m/s) 2 200 LFM (1.0 m/s) 200 LFM (1.0 m/s) 100 LFM (0.5 m/s) 100 LFM (0.5 m/s) 0 0 0 25 40 55 70 85 0 Ambient Air Temperature (°C) 25 40 55 70 85 Ambient Air Temperature (°C) Figure 3: Encased converter (without heatsink) max. output power derating vs. ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air flows across the converter from pin 3 to pin 1 (nominal input voltage). Figure 4: Encased converter (with 1/4” heatsink) max. output power derating vs. ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air flows across the converter from pin 3 to pin 1 (nominal input voltage). Figure 5: Output voltage response to step-change in load current (50%-75%50% of Iout(max); dI/dt = 0.1 A/µs). Load cap: 1 µF ceramic and 15 µF tantalum capacitors. Ch 1: Vout (500mV/div), Ch 2: Iout (5A/div). Figure 6: Output voltage response to step-change in input voltage (250 V/ms). Load cap: 100 µF, electrolytic output capacitance. Ch 1: Vout (500mV/div), Ch 2: Vin (20V/div). Product # MCOTS-C-28-12-QT Phone 1-888-567-9596 www.synqor.com Doc.# 005-0005277 Rev. 1 06/11/09 Page 5 MCOTS-C-28-12-QT Output: 12V Current: 10A Technical Specification 120 Typical Current Limit Inception Point Nominal Vout Output Voltage (%) a pu d bl va ic n at ce io d n 100 80 Typical Output Voltage at Shutdown 60 40 Vin min Vin nom 20 Vin max 0 5.00 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 Load Current (% ) Figure 7: Typical startup waveform. Input voltage pre-applied, ON/OFF Pin on Ch 2. Figure 8: Output voltage vs. load current showing typical current limit curves and converter shutdown points. 100,000.0 Trim Resistance (kOhms) Trim Up Trim Down 10,000.0 1,000.0 100.0 10.0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Figure 9: Trim graph for trim-up, trim down. Product # MCOTS-C-28-12-QT Phone 1-888-567-9596 www.synqor.com Doc.# 005-0005277 Rev. 1 06/11/09 Page 6 MCOTS-C-28-12-QT Output: 12V Current: 10A Technical Specification MIL COTS Qualification Consistent with MIL-STD-883F Method Details #Tested (# Failed) Life Testing Visual, mechanical and electrical testing before, during and after 1000 hour burn-in @ full load 15 (0) Shock-Vibration Visual, mechanical and electrical testing before, during and after shock and vibration tests 5 (0) Humidity +85˚C, 85%RH, 1000 hours, 2 minutes on/6 hours off 8 (0) Method 1004.7 Temperature Cycling 500 cycles of -40˚C to +100˚C (30 minute dwell at each temperature 10 (0) Method 1010.8 Solderability 15 pins 15 (0) Method 2003 DMT -65˚C to +110˚C across full lne and load specificatonsin 5˚C steps 7 (0) Consistent with MILSTD-883F Method 5005 a pu d bl va ic n at ce io d n Test Name Method 1005.8 MIL-STD-202, Method 1 Condition A MIL COTS Screening Standard Military (MIL Grade) Baseplate Operating Temperature -55˚C to +100˚C -55˚C to +100˚C Storage Temperature -65˚C to +135˚C -65˚C to +135˚C ● ● Screening Pre-Cap inspection Temperature Cyclling Burn-In Process Description IPC-610, Class III Method 1010, Condition B, 10 Cycles 100˚C Baseplate 12 Hours 96 Hours 100% 25˚C -55˚C, +25˚C, +100˚C MIL-STD-2008 ● ● Final Electrical Test Final Visual Inspection Product # MCOTS-C-28-12-QT ● Phone 1-888-567-9596 www.synqor.com Doc.# 005-0005277 Rev. 1 06/11/09 Page 7 MCOTS-C-28-12-QT Output: 12V Current: 10A Technical Specification CONTROLFEATURES This MIL-COTS converter series uses a two-stage power conversion topology. The first stage is a buck-converter that keepstheoutputvoltageconstantovervariationsinline,load, and temperature. The second stage uses a transformer to providethefunctionsofinput/outputisolationandvoltagestepuporstep-downtoachievetheoutputvoltagerequired. REMOTE ON/OFF (Pin 2):TheON/OFFinput,Pin2,permits the user to control when the converter is on or off. This input is referenced to the return terminal of the input bus, Vin(-). TheON/OFFsignalisactivelow(meaningthatalowturnsthe converteron).FigureAdetailsfourpossiblecircuitsfordriving theON/OFFpin.FigureBisadetailedlookoftheinternalON/ OFFcircuitry. a pu d bl va ic n at ce io d n BASICOPERATIONANDFEATURES Both the first stage and the second stage switch at a fixed frequency for predictable EMI performance. Rectification of the transformer’s output is accomplished with synchronous rectifiers. These devices, which are MOSFETs with a very low on-state resistance, dissipate far less energy than Schottky diodes. This is the primary reason that the converter has such highefficiency,evenatverylowoutputvoltagesandveryhigh outputcurrents. Theseconvertersareofferedtotallyencasedtowithstandharsh environmentsandthermallydemandingapplications.Dissipation throughout the converter is so low that it does not require a heatsink for operation in many applications; however, adding a heatsink provides improved thermal derating performance in extremesituations. Thisseriesofconvertersusetheindustrystandardfootprintand pin-outconfiguration. REMOTE SENSE(+) (Pins 7 and 5): The SENSE(+) inputs correctforvoltagedropsalongtheconductorsthatconnectthe converter’soutputpinstotheload. Pin 7 should be connected to Vout(+) and Pin 5 should be connectedtoVout(-)atthepointontheboardwhereregulation is desired. A remote connection at the load can adjust for a voltage drop only as large as that specified in this datasheet, thatis [Vout(+)-Vout(-)]– [Vsense(+)- Vsense(-)]< SenseRange%xVout Pins 7 and 5 must be connected for proper regulation of the output voltage. If these connections are not made, the converter will deliver an output voltage that is slightly higher thanitsspecifiedvalue. Note: the output over-voltage protection circuit senses the voltage across the output (pins 8 and 4) to determine when it should trigger, not the voltage across the converter’s sense leads(pins7and5).Therefore,theresistivedropontheboard should be small enough so that output OVP does not trigger, evenduringloadtransients. ON/OFF ON/OFF Vin(_) Vin(_) RemoteEnableCircuit 5V NegativeLogic (PermanentlyEnabled) 5V ON/OFF ON/OFF ON/OFF Vin(_) Vin(_) 100pF Vin(_) DirectLogicDrive Figure A: Various circuits for driving the ON/OFF pin. Product # MCOTS-C-28-12-QT 50k TTL TTL/ CMOS OpenCollectorEnableCircuit 50k Phone 1-888-567-9596 Figure B: Internal ON/OFF pin circuitry www.synqor.com Doc.# 005-0005277 Rev. 1 06/11/09 Page 8 MCOTS-C-28-12-QT Output: 12V Current: 10A Technical Specification OUTPUT VOLTAGE TRIM (Pin 6):TheTRIMinputpermitsthe usertoadjusttheoutputvoltageacrossthesenseleadsupor downaccordingtothetrimrangespecifications. Input Under-Voltage Lockout: The converter is designed toturnoffwhentheinputvoltageistoolow,helpingavoidan input system instability problem, described in more detail in the application note titled “Input System Instability” on our website.Thelockoutcircuitryisacomparatorwithdchysteresis. Whentheinputvoltageisrising,itmustexceedthetypicalTurnOn Voltage Threshold value (listed on the specifications page) before the converter will turn on. Once the converter is on, the input voltage must fall below the typical Turn-Off Voltage Thresholdvaluebeforetheconverterwillturnoff. a pu d bl va ic n at ce io d n To decrease the output voltage, the user should connect a resistorbetweenPin6andPin5(SENSE(-)input).Foradesired decreaseofthenominaloutputvoltage,thevalueoftheresistor shouldbe PROTECTIONFEATURES Rtrim-down= ( ) 511 -10.22 (kW) ∆% where ∆% = Vnominal–Vdesired x100% Vnominal To increase the output voltage, the user should connect a resistorbetweenPin6andPin7(SENSE(+)input).Foradesired increaseofthenominaloutputvoltage,thevalueoftheresistor shouldbe Rtrim-up = where ( 5.11VOUTx(100+∆%) 1.225∆% _ 511 _ 10.22 ∆% ) (kW) Vout=NominalOutputVoltage Trim graphs show the relationship between the trim resistor valueandRtrim-upandRtrim-down,showingthetotalrangethe outputvoltagecanbetrimmedupordown. Note:theTRIMfeaturedoesnotaffectthevoltageatwhichthe outputover-voltageprotectioncircuitistriggered.Trimmingthe output voltage too high may cause the over-voltage protection circuittoengage,particularlyduringtransients. ItisnotnecessaryfortheusertoaddcapacitanceattheTrim pin.Thenodeisinternallybypassedtoeliminatenoise. Total DC Variation of VOUT: For the converter to meet its full specifications, the maximum variation of the dc value of VOUT, duetobothtrimmingandremoteloadvoltagedrops,shouldnot begreaterthanthatspecifiedfortheoutputvoltagetrimrange. Product # MCOTS-C-28-12-QT Phone 1-888-567-9596 Output Current Limit: The maximum current limit remains constant as the output voltage drops. However, once the impedanceoftheloadacrosstheoutputissmallenoughtomake theoutputvoltagedropbelowthespecifiedOutputDCCurrentLimitShutdownVoltage,theconverterturnsoff. Theconverterthenentersa“hiccupmode”whereitrepeatedly turnsonandoffata5Hz(nominal)frequencywitha5%duty cycleuntiltheshortcircuitconditionisremoved.Thisprevents excessiveheatingoftheconverterortheloadboard. Output Over-Voltage Limit:Ifthevoltageacrosstheoutput pinsexceedstheOutputOver-VoltageProtectionthreshold,the converterwillimmediatelystopswitching.Thispreventsdamage totheloadcircuitdueto1)excessiveseriesresistanceinoutput current path from converter output pins to sense point, 2) a releaseofashort-circuitcondition,or3)areleaseofacurrent limit condition. Load capacitance determines exactly how high theoutputvoltagewillriseinresponsetotheseconditions.After 200mstheconverterwillautomaticallyrestart. Over-Temperature Shutdown: A temperature sensor on the converter senses the average temperature of the module. Thethermalshutdowncircuitisdesignedtoturntheconverter off when the temperature at the sensed location reaches the Over-Temperature Shutdown value. It will allow the converter to turn on again when the temperature of the sensed location fallsbytheamountoftheOver-TemperatureShutdownRestart Hysteresisvalue. www.synqor.com Doc.# 005-0005277 Rev. 1 06/11/09 Page 9 MCOTS-C-28-12-QT Output: 12V Current: 10A Technical Specification APPLICATIONCONSIDERATIONS a pu d bl va ic n at ce io d n Input System Instability: This condition can occur because Application Circuits:FigureCprovidesatypicalcircuitdiagram any dc-dc converter appears incrementally as a negative whichdetailstheinputfilteringandvoltagetrimming. resistanceload.Adetailedapplicationnotetitled“InputSystem Instability”isavailableontheSynQorwebsitewhichprovides anunderstandingofwhythisinstabilityarises,andshowsthe preferredsolutionforcorrectingit. Vin(+) Electrolytic Capacitor External Input Filter Vin Vout(+) Vsense(+) ON/OFF Trim Vsense(_) Vin(_) Rtrim-up or Rtrim-down Cload Iload Vout(_) Figure C: Typical application circuit (negative logic unit, permanently enabled). Input Filtering and External Capacitance:FigureDprovides adiagramshowingtheinternalinputfiltercomponents.Thisfilter dramaticallyreducesinputterminalripplecurrent,whichotherwise couldexceedtheratingofanexternalelectrolyticinputcapacitor. The recommended external input capacitance is specified in the Input Characteristics section on the Electrical Characteristics page.Moredetailedinformationisavailableintheapplicationnote titled“EMICharacteristics”ontheSynQorwebsite. Lin Vin(+) C2 C1 Regulation Stage Isolation Stage Vin(_) Figure D: Internal Input Filter Diagram (component values listed on the specifications page). Product # MCOTS-C-28-12-QT Phone 1-888-567-9596 www.synqor.com Doc.# 005-0005277 Rev. 1 06/11/09 Page 10 MCOTS-C-28-12-QT Output: 12V Current: 10A Technical Specification When the ON/OFF pin goes high after t2, the Startup Inhibit Period has elapsed, and the output turns on within the typical Turn-OnTime. Thermal Considerations:Themaximumoperatingbase-plate temperature,TB,is100ºC.Aslongastheuser’sthermalsystem keepsTB<100ºC,theconvertercandeliveritsfullratedpower. a pu d bl va ic n at ce io d n Startup Inhibit Period:TheStartupInhibitPeriodensuresthat theconverterwillremainoffforapproximately200mswhenitis shutdownforanyreason.Whenanoutputshortispresent,this generates a 5 Hz “hiccup mode,” which prevents the converter fromoverheating.Inall,therearesevenwaysthattheconverter canbeshutdown,initiatingaStartupInhibitPeriod: • InputUnder-VoltageLockout Apowerderatingcurvecanbecalculatedforanyheatsinkthatis attached to the base-plate of the converter. It is only necessary todeterminethethermalresistance,RTHBA,ofthechosenheatsink between the base-plate and the ambient air for a given airflow rate. This information is usually available from the heatsink vendor.Thefollowingformulacanthebeusedtodeterminethe maximumpowertheconvertercandissipateforagiventhermal conditionifitsbase-plateistobenohigherthan100ºC. • InputOver-VoltageShutdown • OutputOver-VoltageProtection • OverTemperatureShutdown • CurrentLimit • ShortCircuitProtection • TurnedoffbytheON/OFFinput FigureEshowsthreeturn-onscenarios,whereaStartupInhibit 100ºC-TA max Periodisinitiatedatt0,t1,andt2: Pdiss = RTHBA Beforetimet0,whentheinputvoltageisbelowtheUVLthreshold, theunitisdisabledbytheInputUnder-VoltageLockoutfeature. Thisvalueofpowerdissipationcanthenbeusedinconjunction WhentheinputvoltagerisesabovetheUVLthreshold,theInput withthedatashowninFigure2todeterminethemaximumload Under-VoltageLockoutisreleased,andaStartupInhibitPeriodis current (and power) that the converter can deliver in the given initiated.Attheendofthisdelay,theON/OFFpinisevaluated, thermalcondition. andsinceitisactive,theunitturnson. Forconvenience,powerderatingcurvesforanencasedconverter Attimet1,theunitisdisabledbytheON/OFFpin,anditcannot without a heatsink and with a typical heatsink are provided for eachoutputvoltage. beenabledagainuntiltheStartupInhibitPeriodhaselapsed. Vin Under-Voltage LockoutTurnOnThreshold ON/OFF (neglogic) ON OFF ON Vout OFF ON 9ms (typical turnontime) 200ms (typicalstart-up inhibitperiod) t1 t0 200ms 200ms t2 t Figure E: Startup Inhibit Period (turn-on time not to scale) Product # MCOTS-C-28-12-QT Phone 1-888-567-9596 www.synqor.com Doc.# 005-0005277 Rev. 1 06/11/09 Page 11 MCOTS-C-28-12-QT Output: 12V Current: 10A Technical Specification Mechanical Drawing Top View Side View 1.536±0.020(39.01±0.5) 0.600(15.24) 0.500±0.025 (12.7±0.63) OverallHeight 0.450(11.43) a pu d bl va ic n at ce io d n 0.300(7.62) 0.18±0.010 (4.57±0.25) 0.253±0.020 (6.4±0.5) 0.150(3.81) 0.263±0.020 (6.68±0.5) 8 7 6 5 4 2.386 ±0.020 (60.6±0.5) 2.00 (50.8) 1.86 (47.2) M3 Threaded Inserts 4Places SeeNotes 1 2 3 0.183±.020 (4.65)±0.5 0.468±0.020 (11.89±0.5) 0.300(7.62) 0.600(15.24) 1.030(26.16) PIN DESIGNATIONS NOTES 1) M3screwsusedtoboltunit’sbaseplatetoothersurfaces(suchasa heatsink)mustnotexceed0.100"(2.54mm)depthbelowthesurface ofthebaseplate. 2) Appliedtorqueperscrewshouldnotexceed6in-lb.(0.7Nm). Pin Name Function 1 Vin(+) Positiveinputvoltage 2 ON/OFF 3 Vin(–) 4 Vout(–) 5 SENSE(–) 6 TRIM 7 SENSE(+) Positiveremotesense3 8 Vout(+) Positiveoutputvoltage 3) Baseplateflatnesstoleranceis0.004"(.10mm)TIRforsurface. 4) Pins1-3,5-7are0.040”(1.02mm)diameter,with0.080”(2.03mm) diameterstandoffshoulders. 5) Pins4and8are0.062”(1.57mm)diameterwith0.100"(2.54mm) diameterstandoffshoulders. 6) AllPins:Material-CopperAlloy-Finish(RoHS6/6)-MatteTinover Nickelplate 7) Undimensionedcomponentsareshownforvisualreferenceonly. 8) Weight:3.02oz.(85.7g)typical TTLinputtoturnconverteron andoff,referencedtoVin(–),with internalpullup. Negativeinputvoltage Negativeoutputvoltage Negativeremotesense1 Outputvoltagetrim2 Notes: 9) Alldimensionsininches(mm) Tolerances:x.xx+/-0.02in.(x.x+/-0.5mm) x.xxx+/-0.010in.(x.xx+/-0.25mm) 1) SENSE(–)shouldbeconnectedtoVout(–)eitherremotelyor attheconverter. 2) LeaveTRIMpinopenfornominaloutputvoltage. 10) Workmanship:MeetsorexceedsIPC-A-610CClassII 3) SENSE(+)shouldbeconnectedtoVout(+)eitherremotelyor attheconverter. 11) Recommendedpinlengthis0.03”(0.76mm)greaterthanthePCB thickness. Product # MCOTS-C-28-12-QT Phone 1-888-567-9596 www.synqor.com Doc.# 005-0005277 Rev. 1 06/11/09 Page 12 MCOTS-C-28-12-QT Output: 12V Current: 10A Technical Specification Ordering Information/ Part Numbering Input Voltage Product Output Voltage 1R2: 1.2V 1R5: 1.5V 1R8: 1.8V 2R5: 2.5V 3R3: 3.3V 05: 5V 07: 7V 12: 12V Package Heatsink Option Screening Level a pu d bl va ic n at ce io d n Family MCOTS 28: 16-40V 48: 34-75V 270: 155-400V C: Converter F: Filter 15: 15V 24: 24V 28: 28V 40: 40V 48: 48V P: Passive T: Active FT: Full Brick HP: Half Brick Peta HZ: Half Brick Zeta QT: Quarter Brick EG: Eighth Brick SM: Sixteenth Brick N: Normal F: Flanged S: Standard M: M-Grade Example MCOTS-C-28-12-QT-N-S Application Notes A variety of application notes and technical white papers can be downloaded in pdf format from our website. RoHS Compliance: The EU led RoHS (Restriction of Hazardous Substances) Directive bans the use of Lead, Cadmium, Hexavalent Chromium, Mercury, Polybrominated Biphenyls (PBB), and Polybrominated Diphenyl Ether (PBDE) in Electrical and Electronic Equipment. This SynQor product is 6/6 RoHS compliant. For more information please refer to SynQor’s RoHS addendum available at our RoHS Compliance / Lead Free Initiative web page or e-mail us at [email protected]. PATENTS SynQor holds the following patents, one or more of which might apply to this product: 5,999,417 6,594,159 6,927,987 7,119,524 6,222,742 6,731,520 7,050,309 7,269,034 6,545,890 6,894,468 7,072,190 7,272,021 6,577,109 6,896,526 7,085,146 7,272,023 Contact SynQor for further information: Phone: Toll Free: Fax: E-mail: Web: Address: Product # MCOTS-C-28-12-QT 978-849-0600 888-567-9596 978-849-0602 [email protected] www.synqor.com 155 Swanson Road Boxborough, MA 01719 USA Phone 1-888-567-9596 Warranty SynQor offers a two (2) year limited warranty. Complete warranty information is listed on our website or is available upon request from SynQor. Information furnished by SynQor is believed to be accurate and reliable. However, no responsibility is assumed by SynQor for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of SynQor. www.synqor.com Doc.# 005-0005277 Rev. 1 06/11/09 Page 13