MCOTS-C-48-24-HP Single Output Half-brick MILITARY COTS DC-DC CONVERTER 34-75V Continuous Input 34-100V Transient Input 24V Output 10.5A Output 92% @ 5.3A / 90% @ 10.5A Efficiency Operation: -55°C to +100°C Mil-COTS 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 MCOT S DC-D -C-48-24 -H C CON 48V VERT P-N-M ER IN 24V OUT @ 1 0.5A 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. Safety Features • 2250V, 30 MΩ input-to-output isolation • Certified 60950-1 requirement for basic insulation (see Standards and Qualifications page) Mechanical Features • Industry standard half-brick pin-out configuration • Size: 2.49” x 2.39” x 0.51” (63.1 x 60.6 x 13.0 mm) • Total weight: 4.7 oz. (134 g) • Flanged baseplate version available Protection Features • • • • • Input under-voltage lockout Output current limit and short circuit protection Active back bias limit Output over-voltage protection Thermal shutdown Specification Compliance MCOTS series converters (with an MCOTS filter) are designed to meet: • MIL-HDBK-704 (A-F) • RTCA/DO-160E Section 16 • MIL-STD-1275 (B,D) • DEF-STAN 61-5 (Part 6)/(5 or 6) • MIL-STD-461 (C, D, E, F) Product # MCOTS-C-48-24-HP Phone 1-888-567-9596 Designed and Manufactured in the USA Operational Features • • • • High efficiency, 90% at full rated load current Operating input voltage range: 34-75V Fixed frequency switching provides predictable EMI No minimum load requirement Control Features • On/Off control referenced to input return • Remote sense for the output voltage • Output voltage trim range of +10%, -20% Screening/Qualification • • • • AS9100 and ISO 9001:2008 certified facility Qualified to MIL-STD-810 Available with S-Grade or M-Grade screening Temperature cycling per MIL-STD-883, Method 1010, Condition B, 10 cycles • Burn-In at 100C baseplate temperature • Final visual inspection per MIL-STD-2008 • Full component traceability www.synqor.com Doc.# 005-0005424 Rev. E 09/02/14 Page 1 MCOTS-C-48-24-HP Output: 24V Current: 10.5A Technical Diagrams BLOCK DIAGRAM REGULATION STAGE ISOLATION STAGE CURRENT SENSE 1 POSITIVE INPUT T1 T2 8 T1 T2 3 POSITIVE OUTPUT 4 ISOLATION BARRIER INPUT RETURN GATE DRIVERS CURRENT LIMIT UVLO OVSD 2 ON/OFF OPTO-ISOLATION PRIMARY CONTROL OUTPUT RETURN GATE CONTROL 6 TRIM SECONDARY CONTROL 7 + SENSE 5 − SENSE DATA COUPLING TYPICAL CONNECTION DIAGRAM Vin(+) Vin External Input Filter Electrolytic Capacitor Vout(+) Vsense(+) ON/OFF Trim Vsense(_) Vin(_) Product # MCOTS-C-48-24-HP Phone 1-888-567-9596 www.synqor.com Rtrim-up or Rtrim-down Cload Iload Vout(_) Doc.# 005-0005424 Rev. E 09/02/14 Page 2 MCOTS-C-48-24-HP Output: 24V Current: 10.5A Technical Specification MCOTS-C-48-24-HP ELECTRICAL CHARACTERISTICS Tb = 25 °C, Vin = 48Vdc 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. ABSOLUTE MAXIMUM RATINGS Input Voltage Non-Operating -1 Operating Operating Transient Protection Isolation Voltage Input to Output Input to Base-Plate Output to Base-Plate Operating Temperature -55 Storage Temperature -65 Voltage at ON/OFF input pin -2 INPUT CHARACTERISTICS Operating Input Voltage Range 34 48 Input Under-Voltage Lockout Turn-On Voltage Threshold 32.7 33.1 Turn-Off Voltage Threshold 30.4 30.8 Lockout Voltage Hysteresis 2.3 Recommended External Input Capacitance 100 Input Filter Component Values (L\C) 3.4\4.0 Maximum Input Current No-Load Input Current 60 Disabled Input Current 1 Response to Input Transient 1.2 Input Terminal Ripple Current 200 Recommended Input Fuse OUTPUT CHARACTERISTICS Output Voltage Set Point 23.76 24 Output Voltage Regulation Over Line ±0.1 Over Load ±0.1 Over Temperature -360 Total Output Voltage Range 23.4 Output Voltage Ripple and Noise Peak-to-Peak 0 130 RMS 25 Operating Output Current Range 0 Output DC Current-Limit Inception 11.55 12.6 Output DC Current-Limit Shutdown Voltage 13 Back-Drive Current Limit while Enabled 0.2 Back-Drive Current Limit while Disabled 1 Maximum Output Capacitance Output Voltage during Load Current Transient Step Change in Output Current (0.1 A/µs) 1300 Settling Time 400 Output Voltage Trim Range -20 Output Voltage Remote Sense Range Output Over-Voltage Protection 28.1 29.3 EFFICIENCY 100% Load 90 50% Load 92 Note 1: Output is terminated with 1 µF ceramic and 15 µF low-ESR tantalum noise, consult SynQor applications support (e-mail: [email protected]) Note 2: Trim-up range is limited below 10% at low line and full load. Product # MCOTS-C-48-24-HP Phone 1-888-567-9596 Max. Units 100 75 100 V V V 2250 2250 2250 100 135 18 V dc V dc V dc °C °C V 75 V 33.5 31.2 20 V V V µF µH\µF A mA mA V mA A 24.24 V ±0.3 ±0.3 360 24.6 % % mV V 260 50 10.5 13.65 400 mV mV A A V A mA µF 10 10 30.5 mV µs % % V 10.9 100 2 Notes & Conditions Continuous Continuous 100 ms transient, square wave Baseplate temperature 100V transient for 100 ms Typical ESR 0.1-0.2 Ω Internal values; see Figure E Vin min; trim up; in current limit See Figure 12 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) 50% to 75% to 50% Iout max To within 1% Vout nom Across Pins 8&4; Figure C; See Note 2 Across Pins 8&4 Over full temp range % See Figure 1 for efficiency curve % See Figure 1 for efficiency curve capacitors. For applications requiring reduced output voltage ripple and www.synqor.com Doc.# 005-0005424 Rev. E 09/02/14 Page 3 MCOTS-C-48-24-HP Output: 24V Current: 10.5A Technical Specification MCOTS-C-48-24-HP ELECTRICAL CHARACTERISTICS Tb = 25 °C, Vin = 48Vdc 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. DYNAMIC CHARACTERISTICS Turn-On Transient Turn-On Time 10 Start-Up Inhibit Time 180 200 220 Output Voltage Overshoot 0 ISOLATION CHARACTERISTICS Isolation Voltage (dielectric strength) Isolation Resistance 30 Isolation Capacitance (input to output) 1000 TEMPERATURE LIMITS FOR POWER DERATING CURVES Semiconductor Junction Temperature 125 Board Temperature 125 Transformer Temperature 125 Maximum Baseplate Temperature, Tb 100 FEATURE CHARACTERISTICS Switching Frequency 255 275 295 ON/OFF Control Off-State Voltage 2.4 1.8 On-State Voltage -2 0.8 ON/OFF Control Pull-Up Voltage 5 Pull-Up Resistance 50 Over-Temperature Shutdown OTP Trip Point 125 Over-Temperature Shutdown Restart Hysteresis 10 RELIABILITY CHARACTERISTICS Calculated MTBF per MIL-HDBK-217F 4.1 Calculated MTBF per MIL-HDBK-217F 0.92 Note 1: Higher values of isolation capacitance can be added external to the module. Units ms ms % Notes & Conditions Full load, Vout=90% nom. Figure F Maximum Output Capacitance See Absolute Maximum Ratings MΩ pF See Note 1 °C °C °C °C Package rated to 150 °C UL rated max operating temp 130 °C kHz Isolation stage switching freq. is half this V Application notes Figures A & B V kΩ °C °C 106 Hrs. 106 Hrs. Average PCB Temperature Ground Benign, 70°C Tb Ground Mobile, 70°C Tb STANDARDS COMPLIANCE Parameter Notes & Conditions STANDARDS COMPLIANCE UL 60950-1/R:2011-12 Basic Insulation CAN/CSA-C22.2 No. 60950-1/A1:2011 EN60950-1/A12:2011 Note: An external input fuse must always be used to meet these safety requirements. Contact SynQor for official safety certificates on new releases or download from the SynQor website. Product # MCOTS-C-48-24-HP Phone 1-888-567-9596 www.synqor.com Doc.# 005-0005424 Rev. E 09/02/14 Page 4 MCOTS-C-48-24-HP Output: 24V Current: 10.5A 100 100 95 95 90 90 Efficiency (%) Efficiency (%) Technical Charts 85 80 75 70 3 4 5 6 7 Load Current (A) 8 9 10 100ºC Figure 2: Efficiency at nominal output voltage and 60% rated power vs. case temperature for minimum, nominal, and maximum input voltage. 30 30 25 25 20 15 10 34 Vin 5 25ºC Case Temperature (ºC) Power Dissipation (W) Power Dissipation (W) Figure 1: Efficiency at nominal output voltage vs. load current for minimum, nominal, and maximum input voltage at 25°C. 75 Vin 60 -55ºC 60 2 34 Vin 65 75 Vin 1 75 48 Vin 48 Vin 0 80 70 34 Vin 65 85 20 15 10 34 Vin 5 48 Vin 48 Vin 75 Vin 75 Vin 0 -55ºC 0 0 1 2 3 4 5 6 7 Load Current (A) 8 9 10 Figure 3: Power dissipation at nominal output voltage vs. load current for minimum, nominal, and maximum input voltage at TCASE =25°C. 28 24 10 Output Voltage (V) 8 Iout (A) 100ºC Figure 4: Power dissipation at nominal output voltage and 60% rated power vs. case temperature for minimum, nominal, and maximum input voltage. 12 6 4 2 0 25ºC Case Temperature (ºC) 20 16 12 8 34 Vin 48 Vin 4 50 60 70 80 90 100 110 0 Base Plate Temperature (°C) Figure 5: Maximum output current vs. base plate temperature (nominal input voltage). Product # MCOTS-C-48-24-HP Phone 1-888-567-9596 75 Vin 0 2 4 6 8 10 Load Current (A) 12 14 16 Figure 6: Output voltage vs. load current showing typical current limit curves. See Current Limit section in the Application Notes. www.synqor.com Doc.# 005-0005424 Rev. E 09/02/14 Page 5 MCOTS-C-48-24-HP Output: 24V Current: 10.5A Technical Charts Figure 7: Typical startup waveform. Input voltage pre-applied, ON/OFF Pin. Ch 1: ON/OFF Pin (5V/div). Ch 3: Vout (10V/div). Figure 8: Turn-on transient at full resistive load and zero output capacitance initiated by Vin. ON/OFF Pin previously low. Ch 1: Vin (50V/div). Ch 3: Vout (5V/div). Figure 9: Input terminal current ripple, iC, at full rated output current and nominal input voltage with SynQor MCOTS filter module (200 mA/div). Bandwidth: 20MHz. See Figure 17. Figure 10: Output voltage ripple, Vout, at nominal input voltage and rated load current (20 mV/div). Load capacitance: 1µF ceramic capacitor and 10µF tantalum capacitor. Bandwidth: 10 MHz. See Figure 17. Figure 11: 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 (1V/div), Ch 2: Iout (5A/div). Figure 12: Output voltage response to step-change in input voltage (250V/ms). Load cap: 100 µF electrolytic output capacitance. Ch 1: Vout (1V/div), Ch 2: Vin (50V/div). Product # MCOTS-C-48-24-HP Phone 1-888-567-9596 www.synqor.com Doc.# 005-0005424 Rev. E 09/02/14 Page 6 MCOTS-C-48-24-HP Output: 24V Current: 10.5A Technical Charts 0 10 Forward Transmission (dB) Output Impedance (ohms) -10 1 0.1 0.01 48Vin 75Vin 34Vin 100 1,000 10,000 -30 -40 -50 -60 -80 100,000 10 Hz 100 1,000 10,000 100,000 Hz Figure 13: Magnitude of incremental output impedance (Zout = vout/ iout) for minimum, nominal, and maximum input voltage at full rated power. Figure 14: Magnitude of incremental forward transmission (FT = vout/ vin) for minimum, nominal, and maximum input voltage at full rated power. 1000 Input Impedance (Ohms) 10 Reverse Transmission (dB) 48Vin 75Vin 34Vin -70 0.001 10 -20 0 -10 -20 -30 48Vin -40 100 10 48Vin 1 75Vin 75Vin 34Vin 34Vin 0.1 -50 10 100 1,000 10,000 10 100,000 100 Figure 15: Magnitude of incremental reverse transmission (RT = iin/ iout) for minimum, nominal, and maximum input voltage at full rated power. 10,000 100,000 Figure 16: Magnitude of incremental input impedance (Zin = vin/iin) for minimum, nominal, and maximum input voltage at full rated power. 1 µF ceramic capacitor 4.7 µH source impedance iC VSOURCE 1,000 Hz Hz 100 µF, 0.2Ω ESR electrolytic capacitor DC-DC Converter VOUT 10 µF, 100mΩ ESR tantalum capacitor Figure 17: Test set-up diagram showing measurement points for Input Terminal Ripple Current (Figure 9) and Output Voltage Ripple (Figure 10). Product # MCOTS-C-48-24-HP Phone 1-888-567-9596 Figure 18: Load current (5A/div) as a function of time (2ms/div and 50ms/div) when the converter attempts to turn on into a 10 mΩ short circuit. www.synqor.com Doc.# 005-0005424 Rev. E 09/02/14 Page 7 MCOTS-C-48-24-HP Output: 24V Current: 10.5A Application Section BASIC OPERATION AND FEATURES CONTROL FEATURES This Mil-COTS converter series uses a two-stage power conversion topology. The first stage is a buck-converter that keeps the output voltage constant over variations in line, load, and temperature. The second stage uses a transformer to provide the functions of input/output isolation and voltage step-up or step-down to achieve the output voltage required. REMOTE ON/OFF (Pin 2): The ON/OFF input, Pin 2, 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(-). The ON/OFF signal is active low (meaning that a low turns the converter on). Figure A details four possible circuits for driving the ON/OFF pin. Figure B is a detailed look of the internal ON/ OFF circuitry. 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 high efficiency, even at very low output voltages and very high output currents. These converter are offered totally encased to withstand harsh environments and thermally demanding applications. 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 extreme situations. This series of converters use the industry standard footprint and pin-out configuration. REMOTE SENSE(+) (Pins 7 and 5): The SENSE(+) inputs correct for voltage drops along the conductors that connect the converter’s output pins to the load. Pin 7 should be connected to Vout(+) and Pin 5 should be connected to Vout(-) at the point on the board where regulation is desired. A remote connection at the load can adjust for a voltage drop only as large as that specified in this datasheet, that is [Vout(+) - Vout(-)] – [Vsense(+) - Vsense(-)] < Sense Range % x Vout 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 than its specified value. 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 (pins 7 and 5). Therefore, the resistive drop on the board should be small enough so that output OVP does not trigger, even during load transients. ON/OFF ON/OFF Vin(_) Vin(_) 5V Negative Logic (Permanently Enabled) 5V ON/OFF Remote Enable Circuit 50k ON/OFF TTL/ CMOS Vin(_) Open Collector Enable Circuit Vin(_) 100pF Vin(_) Direct Logic Drive Figure A: Various circuits for driving the ON/OFF pin. Product # MCOTS-C-48-24-HP 50k TTL ON/OFF Phone 1-888-567-9596 www.synqor.com Figure B: Internal ON/OFF pin circuitry Doc.# 005-0005424 Rev. E 09/02/14 Page 8 MCOTS-C-48-24-HP Output: 24V Current: 10.5A Application Section OUTPUT VOLTAGE TRIM (Pin 6): The TRIM input permits the user to adjust the output voltage across the sense leads up or down according to the trim range specifications. It is not necessary for the user to add capacitance at the Trim pin. The node is internally bypassed to eliminate noise. To decrease the output voltage, the user should connect a resistor between Pin 6 and Pin 5 (SENSE(-) input). For a desired decrease of the nominal output voltage, the value of the resistor should be Total DC Variation of VOUT: For the converter to meet its full specifications, the maximum variation of the dc value of VOUT, due to both trimming and remote load voltage drops, should not be greater than that specified for the output voltage trim range. Rtrim-down = 511 (D% )- 10.22 (kW) where D% = Vnominal – Vdesired Vnominal PROTECTION FEATURES x 100% To increase the output voltage, the user should connect a resistor between Pin 6 and Pin 7 (SENSE(+) input). For a desired increase of the nominal output voltage, the value of the resistor should be Rtrim-up = where ( 5.11VOUT x (100+D%) 1.225D% _ 511 _ 10.22 D% ) (kW) Vout = Nominal Output Voltage Trim graphs show the relationship between the trim resistor value and Rtrim-up and Rtrim-down, showing the total range the output voltage can be trimmed up or down. Note: the TRIM feature does not affect the voltage at which the output over-voltage protection circuit is triggered. Trimming the output voltage too high may cause the over-voltage protection circuit to engage, particularly during transients. Trim Resistance (kΩ) 100,000 10,000 1,000 Input Under-Voltage Lockout: The converter is designed to turn off when the input voltage is too low, helping avoid an input system instability problem, described in more detail in the application note titled “Input System Instability” on our website. The lockout circuitry is a comparator with dc hysteresis. When the input voltage is rising, it must exceed the typical TurnOn 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 Threshold value before the converter will turn off. Output Over-Voltage Limit: If the voltage across the output pins exceeds the Output Over-Voltage Protection threshold, the converter will immediately stop switching. This prevents damage to the load circuit due to 1) excessive series resistance in output current path from converter output pins to sense point, 2) a release of a short-circuit condition, or 3) a release of a current limit condition. Load capacitance determines exactly how high the output voltage will rise in response to these conditions. After 200 ms the converter will automatically restart. Over-Temperature Shutdown: A temperature sensor on the converter senses the average temperature of the module. The thermal shutdown circuit is designed to turn the converter 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 falls by the amount of the Over-Temperature Shutdown Restart Hysteresis value. Output Current Limit: The maximum current limit remains constant as the output voltage drops. However, once the impedance of the load across the output is small enough to make the output voltage drop below the specified Output DC Current-Limit Shutdown Voltage, the converter turns off. 100 10 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 % Increase in Vout % Decrease in Vout Figure C: Trim graph for trim-up, trim down. Product # MCOTS-C-48-24-HP Phone 1-888-567-9596 The converter then enters a “hiccup” mode where it repeatedly turns on and off at a 5 Hz (nominal) frequency with 5% duty cycle until the short circuit condition is removed. This prevents excessive heating of the converter or the load board. www.synqor.com Doc.# 005-0005424 Rev. E 09/02/14 Page 9 MCOTS-C-48-24-HP Output: 24V Current: 10.5A Application Section APPLICATION CONSIDERATIONS Input System Instability: This condition can occur because any dc-dc converter appears incrementally as a negative resistance load. A detailed application note titled “Input System Instability” is available on the SynQor website which provides an understanding of why this instability arises, and shows the preferred solution for correcting it. Application Circuits: Figure D provides a typical circuit diagram which details the input filtering and voltage trimming. Vout(+) Vin(+) Vin External Input Filter Electrolytic Capacitor Vsense(+) ON/OFF Trim Vsense(_) Vin(_) Rtrim-up or Cload Rtrim-down Iload Vout(_) Figure D: Typical application circuit (negative logic unit, permanently enabled). Input Filtering and External Capacitance: Figure E provides a diagram showing the internal input filter components. This filter dramatically reduces input terminal ripple current, which otherwise could exceed the rating of the converter's external electrolytic input capacitor. The recommended external input capacitance is specified in the Input Characteristics section on the Electrical Characteristics page. More detailed information is available in the application note titled “EMI Characteristics” on the SynQor website. L Vin(+) Vout(+) Internal Input Filter C Converter Vin(_) Vout(-) Figure E: Internal Input Filter Diagram Product # MCOTS-C-48-24-HP Phone 1-888-567-9596 www.synqor.com Doc.# 005-0005424 Rev. E 09/02/14 Page 10 MCOTS-C-48-24-HP Output: 24V Current: 10.5A Application Section Startup Inhibit Period: The Startup Inhibit Period ensures that the converter will remain off for approximately 200 ms when it is shut down for any reason. When an output short is present, this generates a 5 Hz “hiccup” mode, which prevents the converter from overheating. In all, there are seven ways that the converter can be shut down, initiating a Startup Inhibit Period: • • • • • • • Input Under-Voltage Lockout Input Over-Voltage Lockout Output Over-Voltage Protection Over Temperature Shutdown Current Limit Short Circuit Protection Turned off by the ON/OFF input When the ON/OFF pin goes high after t2, the Startup Inhibit Period has elapsed, and the output turns on within the typical Turn-On Time. Thermal Considerations: The maximum operating baseplate temperature, TB, is 100 ºC. Refer to the thermal derating curve, Figure 5, to see the available output current at baseplate temperatures below 100 ºC. A power derating curve can be calculated for any heatsink that is attached to the base-plate of the converter. It is only necessary to determine the thermal resistance, RTH , of the chosen heatsink between the base-plate and the ambient air for a given airflow rate. This information is usually available from the heatsink vendor. The following formula can then be used to determine the maximum power the converter can dissipate for a given thermal condition: BA Figure F shows three turn-on scenarios, where a Startup Inhibit Period is initiated at t0, t1, and t2: Before time t0, when the input voltage is below the UVL threshold, the unit is disabled by the Input Under-Voltage Lockout feature. When the input voltage rises above the UVL threshold, the Input Under-Voltage lockout is released, and a Startup Inhibit Period is initiated. At the end of this delay, the ON/OFF pin is evaluated, and since it is active, the unit turns on. max Pdiss = T -T B RTH A BA This value of power dissipation can then be used in conjunction with the data shown in Figure 3 to determine the maximum load current (and power) that the converter can deliver in the given thermal condition. At time t1, the unit is disabled by the ON/OFF pin, and it cannot be enabled again until the Startup Inhibit Period has elapsed. Vin Under-Voltage Lockout TurnOn Threshold ON/OFF (neg logic) ON OFF ON Vout OFF ON 10ms (turn on time) 200ms 215ms (initial start-up inhibit period) (typical start-up inhibit period) t1 t0 200ms t t2 Figure F: Startup Inhibit Period (turn-on time not to scale) Product # MCOTS-C-48-24-HP Phone 1-888-567-9596 www.synqor.com Doc.# 005-0005424 Rev. E 09/02/14 Page 11 MCOTS-C-48-24-HP Output: 24V Current: 10.5A Standard Mechanical Drawing 2.486 [63.14] 2.000 [50.80] SEATING PLANE HEIGHT 0.512±0.005 [ 13.00±0.12 ] PIN EXTENSION 0.163 [4.14] 1.000 [25.40] 0.700 [17.78] 4 TOP VIEW 5 6 7 8 0.004 [0.10] 1.900 2.386 [48.26] [60.60] 0.01 [0.3] 1.900 [48.26] 3 1 0.30 [7.6] 1 0.400 [10.16] THRU HOLE STANDOFFS SEE NOTE 1 (4 PLCS) NOTES 1.400 [35.56] PIN DESIGNATIONS 1) THREADED: APPLIED TORQUE PER M3 SCREW 4in-lb RECOMMENDED (5in-lb LIMIT). NONTHREADED: DIA 0.125" (3.18mm) 2) BASEPLATE FLATNESS TOLERANCE IS 0.004" (.10mm) TIR FOR SURFACE. 3) PINS 1-3 AND 5-7 ARE 0.040" (1.02mm) DIA. WITH 0.080" (2.03mm) DIA. STANDOFFS. 4) PINS 4 AND 8 ARE 0.080" (2.03mm) DIA. WITH 0.125" (3.18mm) DIA STANDOFFS 5) ALL PINS: MATERIAL: COPPER ALLOY FINISH: MATTE TIN OVER NICKEL PLATE 6) WEIGHT: 4.7 oz (134 g) 7) ALL DIMENSIONS IN INCHES (mm) TOLERANCES: X.XXIN +/-0.02 (X.Xmm +/-0.5mm) X.XXXIN +/-0.010 (X.XXmm +/-0.25mm) Product # MCOTS-C-48-24-HP 2 Phone 1-888-567-9596 www.synqor.com Pin 1 2 Name Vin(+) ON/OFF 3 4 5 6 7 8 IN RTN OUT RTN SENSE(–) TRIM SENSE(+) Vout(+) Function Positive input voltage TTL input to turn converter on and off, referenced to Vin(–), with internal pull up. Input return Output return Negative remote sense1 Output voltage trim2 Positive remote sense3 Positive output voltage Notes: 1) SENSE(–) should be connected to Vout(–) either remotely or at the converter. 2) Leave TRIM pin open for nominal output voltage. 3) SENSE(+) should be connected to Vout(+) either remotely or at the converter. Doc.# 005-0005424 Rev. E 09/02/14 Page 12 MCOTS-C-48-24-HP Output: 24V Current: 10.5A Flanged Mechanical Drawing SEATING PLANE HEIGHT 0.495±0.025 [ 12.57±0.63 ] 3.150 [80.01] 2.950 [74.93] 2.486 [63.14] PIN EXTENSION 0.180 [4.57] 1.000 [25.40] 0.700 [17.78] 4 5 6 8 7 TOP VIEW 1.300 [33.02] 0.010 [0.25] 1.900 [48.26] 1.866 [47.40] 0.31 [7.9] 2.386 [60.60] 2 3 1 1 0.775±0.020 [ 19.69±0.50 ] .130 [3.30] SEE NOTE 1 (6 PLCS) FLANGE THICKNESS 0.125 [3.18] NOTES 1.400 [35.56] PIN DESIGNATIONS 1) APPLIED TORQUE PER M3 OR 4-40 SCREW 4in-lb RECOMMENDED (5in-lb LIMIT) 2) BASEPLATE FLATNESS TOLERANCE IS 0.010" (.25mm) TIR FOR SURFACE. 3) PINS 1-3 AND 5-7 ARE 0.040" (1.02mm) DIA. WITH 0.080" (2.03mm) DIA. 4) PINS 4 AND 8 ARE 0.080" (2.03mm) DIA. WITH 0.125" (3.18mm) DIA STANDOFFS 5) ALL PINS: MATERIAL: COPPER ALLOY FINISH: MATTE TIN OVER NICKEL PLATE 6) WEIGHT: 4.9 oz. (140 g) 7) ALL DIMENSIONS IN INCHES (mm) TOLERANCES: X.XXIN +/-0.02 (X.Xmm +/-0.5mm) X.XXXIN +/-0.010 (X.XXmm +/-0.25mm) Product # MCOTS-C-48-24-HP 0.400 [10.16] Phone 1-888-567-9596 Pin 1 2 Name Vin(+) ON/OFF 3 4 5 6 7 8 IN RTN OUT RTN SENSE(–) TRIM SENSE(+) Vout(+) Function Positive input voltage TTL input to turn converter on and off, referenced to Vin(–), with internal pull up. Input return Output return Negative remote sense1 Output voltage trim2 Positive remote sense3 Positive output voltage Notes: 1) SENSE(–) should be connected to Vout(–) either remotely or at the converter. 2) Leave TRIM pin open for nominal output voltage. 3) SENSE(+) should be connected to Vout(+) either remotely or at the converter. www.synqor.com Doc.# 005-0005424 Rev. E 09/02/14 Page 13 MCOTS-C-48-24-HP Output: 24V Current: 10.5A Qualifications & Screening Mil-COTS Qualification Test Name # Tested Consistent with MIL(# Failed) STD-883F Method Details Life Testing Shock-Vibration Visual, mechanical and electrical testing before, during and after 1000 hour burn-in @ full load Visual, mechanical and electrical testing before, during and after shock and vibration tests Humidity +85˚C, 95% RH, 1000 hours, 2 minutes on / 6 hours off Temperature Cycling 500 cycles of -55˚C to +100˚C (30 minute dwell at each temperature) Solderability 15 pins DMT -65˚C to +110˚C across full line and load specifications in 5˚C steps Altitude 70,000 feet (21 km), see Note 15 (0) 5 (0) 8 (0) 10 (0) 15 (0) 7 (0) 2 (0) Consistent with MIL-STD883F Method 5005 Method 1005.8 MIL-STD-202, Methods 201A & 213B Method 1004.7 Method 1010.8 Condition A Method 2003 Note: A conductive cooling design is generally needed for high altitude applications because of naturally poor convective cooling at rare atmospheres. Mil-COTS DC-DC Converter and Filter Screening Screening Process Description S-Grade M-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 ● ● Pre-Cap Inspection IPC-610, Class III Temperature Cycling Method 1010, Condition B, 10 Cycles Burn-In 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 ● Mil-COTS MIL-STD-810G Qualification Testing MIL-STD-810G Test Fungus Altitude Method 508.6 Description Table 508.6-I 500.5 - Procedure I Storage: 70,000ft. / 2 Hr. duration 500.5 - Procedure II Operating; 70,000ft. / 2 Hr. duration; Ambient Temperature Rapid Decompression 500.5 - Procedure III Storage: 8,000ft. to 40,000ft. Acceleration 513.6 - Procedure II Operating - 15g's Salt Fog 509.5 Storage 501.5 - Procedure I Storage: 135°C / 3 hrs 501.5 - Procedure II Operating: 100°C / 3 hrs 502.5 - Procedure I Storage: -65C / 4 hrs 502.5 - Procedure II Operating: -55C / 3 hrs Temperature Shock 503.5 - Procedure I - C Storage: -65C to 135C; 12 cycles Rain 506.5 - Procedure I Wind Blown Rain Immersion 512.5 - Procedure I Non-Operating Humidity 507.5 - Procedure II Aggravated cycle @ 95% RH (Figure 507.5-7 aggravated temp - humidity cycle, 15 cycles) Random Vibration 514.6 - Procedure I 10-2000 Hz, PSD level of 1.5 g2/Hz(54.6grms), duration = 1 hr/axis 516.6 - Procedure I 20g's peak, 11ms, Functional Shock (Operating no load) (saw tooth) 516.6 - Procedure VI 514.6 - Category 14 510.5 - Procedure I Bench Handling Shock Rotary wing aircraft - helicopter, 4hrs/axis, 20g's (sine sweep from 10 - 500HZ) Blowing Dust 510.5 - Procedure II Blowing Sand High Temperature Low Temperature Shock Sinusoidal vibration Sand and Dust Product # MCOTS-C-48-24-HP Phone 1-888-567-9596 www.synqor.com Doc.# 005-0005424 Rev. E 09/02/14 Page 14 MCOTS-C-48-24-HP Output: 24V Current: 10.5A Ordering Information Ordering Information/ Part Numbering Example MCOTS-C-48-24-HP-N-S Not all combinations make valid part numbers, please contact SynQor for availability. Family MCOTS Product Input Voltage 28: 16-40V 48: 34-75V C: Converter Output Voltage 1R8: 3R3: 05: 8R4: 12: 15: 1.8V 3.3V 5.0V 8.4V 12V 15V 19R1: 19.1V 24: 28: 40: 48: Package Thermal Design Screening Level HP: Half Brick Peta N: Normal Threaded D: Normal Non-Threaded F: Flanged S: S-Grade M: M-Grade 24V 28V 40V 48V Options [ ]: Standard Feature APPLICATION NOTES PATENTS A variety of application notes and technical white papers can be downloaded in PDF format from our website. SynQor holds the following U.S. patents, one or more of which apply to each product listed in this document. Additional patent applications may be pending or filed in the future. Contact SynQor for further information and to order: Phone: Toll Free: Fax: E-mail: Web: Address: Product # MCOTS-C-48-24-HP 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 5,999,417 6,222,742 6,545,890 6,577,109 6,594,159 6,731,520 6,894,468 6,896,526 6,927,987 7,050,309 7,072,190 7,085,146 7,119,524 7,269,034 7,272,021 7,272,023 7,558,083 7,564,702 7,765,687 7,787,261 8,023,290 8,149,597 8,493,751 8,644,027 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.# 005-0005424 Rev. E 09/02/14 Page 15