MCOTS-B-600-31-HT Single Output Half-brick Military COTS DC‑DC Bus Converters 440-700 V 31 V 32 A 4250 Vdc Half-brick Input Output Current Isolation DC-DC Converter The MCOTS-B-600-31-HT bus converter is a nextgeneration, board-mountable, isolated, fixed switching frequency DC/DC converter that uses synchronous rectification to achieve extremely high conversion efficiency. The MCOTS series provides an isolated step down voltage from 540 V to 31 V intermediate bus with no regulation in a standard half-brick module. The MCOTSB-600-31-HT converter is ideal for creating the mid-bus voltage required to drive standard 31 V dc-dc isolated converters. Designed and manufactured in the USA. Operational Features • • • • • Protection Features High efficiency, 94.9% at full rated load current Delivers 32 A full power with minimal derating Operating input voltage range: 440-700 V Fixed frequency switching provides predictable EMI No minimum load requirement • Input under-voltage and over voltage lockout protects against abnormal input voltages • Output current limit and short circuit protection (auto recovery) • Thermal shutdown Mechanical Features • Industry standard half-brick pin-out configuration • Size: 2.39” x 2.49” (60.6 x 63.14 mm), height: 0.512” (13.0 mm) • Total Baseplate weight: 4.8 oz (137 g) Screening/Qualification • AS9100 and ISO 9001:2008 certified facility Control Features • Qualification consistent with MIL-STD-883 • Available with S-Grade or M-Grade screening • On/Off control referenced to input side • Inherent current share (by droop method) for high current and parallel applications. • Clock synchronization (primary referenced) • Pre-cap inspection per IPC-610, Class III • 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 Product # MCOTS-B-600-31-HT Phone 1-888-567-9596 www.synqor.com Doc.# 005-0006395 Rev. A 05/22/2015 Page 1 MCOTS-B-600-31-HT Input:440-700 V Output:31 V Current:32 A Electrical Characteristics MCOTS-B-600-31-HT Electrical Characteristics Ta = 25 °C, airflow rate = 300 LFM, Vin = 540 V dc 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. ABSOLUTE MAXIMUM RATINGS Input Voltage Non-Operating Operating Isolation Voltage Input to Output Input to Baseplate Output to Baseplate 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 Input Over-Voltage Shutdown Turn-On Voltage Threshold Turn-Off Voltage Threshold > 0.1 s Turn-Off Voltage Threshold Maximum Input Current No-Load Input Current Disabled Input Current Input Reflected-Ripple Current Input Terminal-Ripple Current Recommended Input Fuse Recommended External Input Capacitance Input Filter Component Values (L\C) 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 Disabled Maximum Output Capacitance EFFICIENCY 100% Load 50% Load Product # MCOTS-B-600-31-HT Typ. -0.5 V V 4250 2900 2900 100 135 18 Vdc Vdc Vdc °C °C V 700 750 V V 2.9 1 2.3\0.30 V V V V V V V A mA mA mA mA A µF µH\µF 30.3 V 51\15.9 1.9\600 1\300 %\V %\mV %\mV V 540 540 415 370 45 725 735 830 28 3.0 130 250 200 10 24.5 40.4 175 33 0 Phone 1-888-567-9596 Units Notes & Conditions 850 790 -55 -65 -2 440 400 Max. 300 32.5 38 20 20 2,000 94.9 95.3 www.synqor.com mV mV A A V mA µF Continuous See Note 1 Baseplate temperature Continuous Transient, 100 ms, dv/dt < 0.5 V/µs Vin = 440 V RMS through 10 µH inductor RMS, full load Fast blow external fuse recommended Typical ESR 0.1-0.2 Ω Internal values Vin = 540 V; Io = 0 A Over sample, line, load, temperature & life 20 MHz bandwidth; see Note 2 Full load Full load Subject to thermal derating; Vin = 540 V Vin = 540 V Vin = 540 V Negative current drawn from output 31 Vout at 16 A Resistive Load % % Doc.# 005-0006395 Rev. A 05/22/2015 Page 2 MCOTS-B-600-31-HT Input:440-700 V Output:31 V Current:32 A Electrical Characteristics MCOTS-B-600-31-HT Electrical Characteristics (continued) Ta = 25 °C, airflow rate = 300 LFM, Vin = 540 V dc 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. DYNAMIC CHARACTERISTICS Output Voltage during Load Current Transient Step Change in Output Current (0.1 A/µs) Settling Time Turn-On Transient Turn-On Time (with 2 mF output capacitance) Start-Up Inhibit Time Output Voltage Overshoot ISOLATION CHARACTERISTICS Isolation Voltage (dielectric strength) Isolation Resistance Isolation Capacitance (input to output) TEMPERATURE MODEL FOR POWER DERATING CURVES Semiconductor Junction Temperature Board Temperature Transformer Core Temperature Maximum Baseplate Temperature, Tb FEATURE CHARACTERISTICS Switching Frequency (fs) 255 Clock Synchronization 500 ON/OFF Control On-State Voltage -1 Off-State Voltage 2.4 ON/OFF Control Pull-Up Voltage Pull-Up Resistance Over-Temperature Shutdown OTP Trip Point 140 Over-Temperature Shutdown Restart Hysteresis RELIABILITY CHARACTERISTICS Calculated MTBF per MIL-HDBK-217F Calculated MTBF per MIL-HDBK-217F Typ. Max. 650 100 20 250 0 mV µs 50% to 75% to 50% Iout max To within 1% Vout nom 30 ms ms % Half load (resistive), Vout=90% nom; Note 3 -55 °C to +125 °C; Figure F 2 mF load capacitance 4250 V MΩ pF See Absolute Maximum Ratings 125 125 125 100 °C °C °C °C Package rated to 150 °C UL rated max operating temp 130 °C 295 600 kHz kHz fundamental ripple frequency is 2 x fs Logic level high not to exceed 3.3 V 0.8 18 V V 100 N/A 275 Units Notes & Conditions Note 4 Application notes Figure B 5 82.5 150 10 1.63 0.35 V kΩ °C °C Average PCB Temperature 106 Hrs. Ground Benign, 70 °C Tb 106 Hrs. Ground Mobile, 70 °C Tb Note 1: Converter will undergo input over-voltage shutdown. Note 2: For applications requiring reduced output voltage ripple and noise, consult SynQor applications support (e-mail: [email protected]) Note 3: Starting up under full load can result in hic-up operation (shut down). Note 4: Isolation capacitance can be added external to the module (recommended). Product # MCOTS-B-600-31-HT Phone 1-888-567-9596 www.synqor.com Doc.# 005-0006395 Rev. A 05/22/2015 Page 3 MCOTS-B-600-31-HT Input:440-700 V Output:31 V Current:32 A Technical Charts 100 100 95 98 Efficiency (%) 90 Efficiency (%) 85 80 96 94 75 70 Vin = 440 V Vin = 440 V 92 Vin = 550 V 65 Vin = 550 V Vin = 700 V 60 0 10 20 30 Vin = 700 V 40 90 -55 ºC 50 25 ºC Figure 1: Efficiency at nominal output voltage vs. load current for minimum, nominal, and maximum input voltage at 25 °C. Figure 2: Efficiency vs. case temperature for minimum, nominal, and maximum input voltage and 60% rated power. 70 50 60 40 Power Dissipation (W) Power Dissipation (W) 100 ºC Case Temperature (ºC) Load Current (A) 50 40 30 20 Vin = 440 V 20 Vin = 440 V 10 Vin = 550 V 10 30 Vin = 550 V Vin = 700 V Vin = 700 V 0 0 10 20 30 40 0 -55 ºC 50 25 ºC Figure 3: Power dissipation vs. load current for minimum, nominal, and maximum input voltage at TCASE=25 °C. 100 ºC Case Temperature (ºC) Load Current (A) Figure 4: Power dissipation vs. case temperature for minimum, nominal, and maximum input voltage and 60% rated power. 50 1200 40 Output Voltage (V) 1000 Pout (W) 800 600 400 Vin = 440 V 0 20 Vin = 440 V 10 Vin = 550 V 200 30 Vin = 550 V Vin = 700 V Vin = 700 V 50 60 70 80 90 100 0 110 Baseplate Temperature (°C) Figure 5: Maximum output power vs. baseplate temperature for minimum, nominal, and maximum input voltage. Product # MCOTS-B-600-31-HT Phone 1-888-567-9596 0 10 20 30 Load Current (A) 40 50 Figure 6: Output voltage vs. load current, current limit curves for minimum, nominal, and maximum input voltage at TCASE=25 °C. www.synqor.com Doc.# 005-0006395 Rev. A 05/22/2015 Page 4 MCOTS-B-600-31-HT Input:440-700 V Output:31 V Current:32 A Technical Charts 50 Vin = 440V Vin = 550V Output Voltage (V) 40 Vin = 700V 30 20 10 0 0 10 20 30 40 50 Load Current (A) Figure 7: Output voltage vs. load current, regulation curves for minimum, nominal, and maximum input voltage at TCASE=25 °C. Figure 8: Turn-on transient at no load and zero output capacitance initiated by ENA. Input voltage pre-applied. Ch 1: Vout (10 V/div). Ch 2: ENA (5 V/div). Figure 9: Turn-on transient at half resistive load and 100uF output capacitance initiated by ENA. Input voltage pre-applied. Ch 1: Vout (10 V/div). Ch 2: ENA (5 V/div). Figure 10: Turn-on transient at half resistive load and 2 mF output capacitance initiated by ENA. Input voltage pre-applied. Ch 1: Vout (10 V/div). Ch 2: ENA (5 V/div). Input Reflected Ripple Current source impedance iS Input Terminal Ripple Current iC Output Voltage Ripple DC-DC Converter VOUT VSOURCE electrolytic capacitor Figure 11: Turn-on transient at half resistive load and 100 uF output capacitance initiated by Vin. ENA previously high. Ch 1: Vout (10 V/div). Ch 2: Vin (500 V/div). Product # MCOTS-B-600-31-HT Phone 1-888-567-9596 ceramic electrolytic capacitor capacitor Figure 12: Test set-up diagram showing measurement points for Input Terminal Ripple Current (Figure 16) and Output Voltage Ripple (Figure 17). www.synqor.com Doc.# 005-0006395 Rev. A 05/22/2015 Page 5 MCOTS-B-600-31-HT Input:440-700 V Output:31 V Current:32 A Technical Charts Figure 13: Output voltage response to step-change in load current 50%-75%50% of Iout (max). Load capacitance: 1 uF ceramic and 10 uF 100 mΩ ESR tantalum. Ch1: Vout (2 V/div). Ch 2: Iout (25 A/div). Figure 14: Output voltage response to step-change in load current 10%-100%10% of Iout (max). Load capacitance: 1 uF ceramic and 10 uF 100 mΩ ESR tantalum. Ch1: Vout (2 V/div). Ch 2: Iout (25 A/div). Figure 15: Input reflected ripple current, is, through a 10 µH source inductor, using a 1 uF ceramic input capacitor (50 mA/div). See Figure 12. Figure 16: Input terminal ripple, ic, at full load and nominal input voltage with 10 µH source impedance and 1 µF ceramic capacitor (1 A/div). Bandwidth: 20 MHz. See Figure 12. Figure 17: Output voltage ripple, Vout, at nominal input voltage and full load (100 mV/div). Bandwidth: 20 MHz. Load capacitance: 1 uF ceramic and 10 µF 100 mΩ ESR tantalum capacitor. See Figure 12. Figure 18: Rise of output voltage after the removal of a short circuit across the output terminals. Rshort = 5 mΩ. Ch1: Vout (10 V/div). Ch 2: Iout (50 A/div). Bandwidth: 20 MHz. Product # MCOTS-B-600-31-HT Phone 1-888-567-9596 www.synqor.com Doc.# 005-0006395 Rev. A 05/22/2015 Page 6 MCOTS-B-600-31-HT Input:440-700 V Output:31 V Current:32 A Application Section BASIC OPERATION AND FEATURES CONTROL FEATURES With voltages dropping and currents rising, the economics of an Intermediate Bus Architecture (IBA) are becoming more attractive, especially in systems requiring multiple low voltages. IBA systems separate the role of isolation and voltage scaling from regulation and sensing. The BusQor series bus converter provides isolation and an unregulated voltage step down in one compact module, leaving regulation to simpler, less expensive non-isolated converters. 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(-). In the negative logic version, the ON/OFF signal is active low (meaning that a low turns the converter on). Figure B is a detailed look of the internal ON/OFF circuitry. 5V In Figure A below, the BusQor module provides the isolation stage of the IBA system. The isolated bus then distributes power to the non-isolated buck regulators to generate the required voltage levels at the points of load. In this case, the bucks are represented with SynQor’s NiQor series of nonisolated DC-DC converters. In many applications requiring multiple low voltage outputs, significant savings can be achieved in board space and overall system costs. When designing an IBA system with bus converters, the designer can select from a variety of bus voltages. While there is no universally ideal bus voltage, most designs employ one of the following: 31 V, 28 V, 24 V, 12 V, 9.6 V, or 6 V. Higher bus voltages can lead to lower efficiency for the buck regulators but are more efficient for the bus converter and provide lower board level distribution current. Lower bus voltages offer the opposite trade offs. SynQor’s BusQor modules act as a true dc transformer. The output voltage is proportional to the input voltage, with a specified “turns ratio” or voltage ratio, plus minor drop from the internal resistive losses in the module. When used in IBA systems, the output variation of the BusQor must be in accordance with the input voltage range of the non-isolated converters being employed. The BusQor architecture is very scalable, meaning multiple bus converters can be connected directly in parallel to allow current sharing for higher power applications. 82.5K PIN2 PIN3 ON/OFF 10K TO ENABLE CIRCUITRY IN RTN Figure B: Internal ON/OFF pin circuitry SYNCHRONIZATION: The MCOTS converter’s switching frequency can be synchronized to an external frequency source that is in the 500 kHz to 600 kHz range. A pulse train at the desired frequency should be applied to the CLK SYNC pin (pin 3) with respect to the INPUT RETURN (pin 4). This pulse train should have a duty cycle in the 20% to 80% range. Its low value should be below 0.8 V to be guaranteed to be interpreted as a logic low, and its high value should be above 2.0 V to be guaranteed to be interpreted as a logic high. The transition time between the two states should be less than 300 ns. If the MCOTS converter is not to be synchronized, the CLK SYNC pin should be left open circuit. The converter will then operate in its free-running mode at a frequency of approximately 550 kHz (twice the switching frequency). If, due to a fault, the CLK SYNC pin is held in either a logic low or logic high state continuously, or the CLK SYNC frequency is outside the 500-600 kHz range, the MCOTS converter will revert to its free-running frequency. 15.0 V 540 Vdc 440-700 Vdc Front End BusQor Converter 31 Vdc 12.0 V 7.5 V 5.0 V 3.3 V Typical User Board Converters Loads Figure A: Example of Intermediate Bus Architecture using isolated or nonisolated converters. Product # MCOTS-B-600-31-HT Phone 1-888-567-9596 Figure C: Equivalent circuit looking into the CLK SYNC pin with respect to the IN RTN (input return) pin. www.synqor.com Doc.# 005-0006395 Rev. A 05/22/2015 Page 7 MCOTS-B-600-31-HT Input:440-700 V Output:31 V Current:32 A Application Section PROTECTION FEATURES 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”. 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 specification 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. Also see Figure F. Input Over-Voltage Shutdown: The converter also has a two stage over-voltage feature that limits the converter's duty cycle for 100 ms before shutdown and a higher second level with no delay before shutdown if the input voltage is too high (See the Input Over-Voltage Shutdown section in the Electrical Characteristics Table for specific voltage levels). It also has a hysteresis and time delay to ensure proper operation. Output Current Limit: The output of the BusQor module is electronically protected against output overloads. When an overload current greater than the “DC Current-Limit Inception” specification is drawn from the output, the output shuts down to zero volt in a period of 1 ms typical (see Figure D). The shutdown period lasts for a typical period of 250 ms (Figure E) after which the BusQor tries to power up again (10 ms). If the overload persists, the output voltage will go through repeated cycles of shutdown and restart with a duty cycle of 4% (On) and 96% (Off) respectively. Output Current 38 A 32.5 A Output Voltage 30.5 V 0V 1 ms Time Figure D: Output Overload protection diagram (not to scale) Product # MCOTS-B-600-31-HT Phone 1-888-567-9596 Output Current 50 A peak Output Voltage <31 V 0V 250 ms 10 ms Time Figure E: Output Short Circuit and Auto-Resetting protection diagram (not to scale) The BusQor module returns (auto resetting) to normal operation once the overload is removed. The BusQor is designed to survive in this mode indefinitely without damage and without human intervention. Output Short Circuit Protection: When the output of the BusQor module is shorted, a peak current of typically 50 A will flow into the short circuit for a period not greater than 1 ms (typically 200 uS). The output of the BusQor will shutdown to zero for ~ 250 mS (Figure E). At the end of the shutdown period the BusQor module tries to power up again. If the short circuit persists, the output voltage will go through repeated cycles of shutdown and restart with a duty cycle of 4% (On) and 96% (Off) respectively. The BusQor module returns (auto resetting) to normal operation once the short circuit is removed. The BusQor is designed to survive in this mode indefinitely without damage and without human intervention. In the Auto resetting mode, also referred to as “Hiccup” mode, the power drawn from the 540 V input is about ~10 Watts, most of which is dissipated into the external fault. It is important that copper traces and pads from the output circuit be designed to withstand the short term peaks, although the average current into the fault may be as low as 0.04 A typical. See Figure 18 for appropriate waveform. 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. www.synqor.com Doc.# 005-0006395 Rev. A 05/22/2015 Page 8 MCOTS-B-600-31-HT Input:440-700 V Output:31 V Current:32 A Application Section APPLICATION CONSIDERATIONS Start-Up Inhibit Period: Figure F details the Start-Up Inhibit Period for the BusQor module. At time t0, when Vin is applied with On/Off pin asserted (enabled), the BusQor output begins to build up. Before time t1, 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 UnderVoltage Lockout is released, and a typical Initial Startup Inhibit Period of 70 ms is initiated. The output builds up to 90% of the nominal value of 31.0 V in a period of 20 ms typical (50% load). At time t2, when the On/Off pin is de-asserted (disabled), the BusQor output instantly drops to 0 V. Fall time from 31.0 V to 0 V is dependent on output capacitance and any parasitic trace inductance in the output load circuit. At time t3, when the On/Off pin is re-asserted (enabled), the BusQor module output begins to build up after the inhibit period of 250 ms typical has elapsed. Refer to the Control Features section of the data sheet for details on enabling and disabling methods for Bus Qor modules. Thermal Derating Test Setup The curves showing the derating of output current and power as a function of the base plate temperature temperature, are taken with the oven setup shown in Fig. G. The converter module is soldered to a carrier PCB that is mounted horizontally within an oven. The carrier PCB is a four layer 4 oz PCB. A large aluminum heatsink (thermal grease is applied between the base plate and the heatsink interface to minimize the thermal impedance) is attached to the baseplate to keep the baseplate temperature constant during thermal testing. A small hole is drilled through the heatsink in order to attach a thermocouple to the baseplate of the DTU. Additional thermocouples are attached to the hottest components before base plating to monitor the internal temperature of all of the critical components during testing. The oven temperature is controlled so as to keep the base plate temperature to the desired value. The base plate temperature is kept at 100 oC or below for all conditions. If the temperature of an internal component exceeds 125 oC, the output current (power level) is reduced so as to keep the temperature of all internal components below 125 oC. Vin Heat Sink UVLO Thermocouple DUT On/Off Test PCB (N logic) OFF ON t0 t1 t2 t t3 Vout Thermal Chamber Figure G: Thermal chamber setup for derating curves. Initial Start-up Inhibit Start-up Inhibit Time Start-Up Figure F: Power Up/Down Diagram (not to scale) showing Start-Up Inhibit Period Product # MCOTS-B-600-31-HT Phone 1-888-567-9596 www.synqor.com Doc.# 005-0006395 Rev. A 05/22/2015 Page 9 MCOTS-B-600-31-HT Input:440-700 V Output:31 V Current:32 A Application Section 540 Vin 20.0% 15.0% Deviation from 50/50 Sharing (%) Current Sharing: MCOTS BusQor modules are designed to operate in parallel without the use of any external current share circuitry. A typical (recommended) circuit for paralleling two BusQor modules is shown in Figure I. An output capacitor is recommended across each module and located close to the converter for optimum filtering and noise control performance. Dedicated input inductors are recommended but are considered optional. Input capacitors must be located close to the converter module. PCB layout in the input circuit should be such that high frequency ripple currents of each module is restricted to a loop formed by the input capacitors and the input terminals of the BusQor module. See Figure I for details on PCB layout. Contact SynQor application engineering for further assistance on PCB trace design. The current share performance of two paralleled modules is illustrated in the graph in Figure H. In this graph the percent deviation from ideal sharing (50%) is plotted for each module versus the total output load current at 540 Vin. Two MCOTS 600 Bus Qor’s will share within 10% at higher loads. The current share accuracy is affected by changes in the gate drive timing as a function of load. The gate drive timing is adjusted as a function of load to better optimize the product efficiency over line and load (performance). 10.0% 5.0% 0.0% -5.0% -10.0% Module 1 -15.0% Module 2 -20.0% 5 10 15 20 25 30 35 40 45 Total Load Current (A) Figure H: Typical current share performance of 2 paralleled modules BusQor module CM EMI filter (Not shown in Figure H) Bulk Cap BusQor module Input LC filters Figure I: Recommended physical implementation of two Bus Qor's in parallel. Product # MCOTS-B-600-31-HT Phone 1-888-567-9596 www.synqor.com Doc.# 005-0006395 Rev. A 05/22/2015 Page 10 MCOTS-B-600-31-HT Input:440-700 V Output:31 V Current:32 A Encased Mechanical Diagram SEATING PLANE HEIGHT 0.512±0.005 [13.00±0.12] 2.486 [63.14] 2.000 [50.80] PIN EXTENSION 0.163 [4.14] 1.400 [35.56] 5 TOP VIEW 6 0.004 [0.10] 1.900 2.386 [48.26][60.60] 0.01 [0.3] 1.900 [48.26] 4 1 0.30 [7.6] 3 2 1 0.400 0.600 [10.16] THRU HOLE STANDOFFS SEE NOTE 1 (4 PLCS) 1.400 [35.56] NOTES PIN DESIGNATIONS 1) THREADED:APPLIED TORQUE PER M3 SCREW 4 in-lb RECOMMENDED (5 in-lb LIMIT). NONTHREADED: DIA 0.125" (3.18 mm) 2) BASEPLATE FLATNESS TOLERANCE IS 0.004" (.10 mm) TIR FOR SURFACE. 3) PINS 1-4 ARE 0.040" (1.02 mm) DIA. WITH 0.080" (2.03 mm) DIA. STANDOFFS. 4) PINS 5 AND 6 ARE 0.080" (2.03 mm) DIA. WITH 0.125" (3.18mm) DIA STANDOFFS 5) ALL PINS: MATERIAL: COPPER ALLOY FINISH: MATTE TIN OVER NICKEL PLATE 6) WEIGHT: 4.8 oz (137 g) 7) ALL DIMENSIONS IN INCHES(mm) TOLERANCES: X.XX IN +/-0.02 (X.X mm +/-0.5 mm) Pin 1 2 3 4 5 6 Name Function Vin(+) Positive input voltage TTL input to turn converter on and off, ON/OFF referenced to Vin(–), with internal pull up. Clock Clock synchronization Sync Vin(–) Negative input voltage Vout(–) Negative output voltage Vout(+) Positive output voltage X.XXX IN +/-0.010 (X.XX mm +/-0.25 mm) Product # MCOTS-B-600-31-HT Phone 1-888-567-9596 www.synqor.com Doc.# 005-0006395 Rev. A 05/22/2015 Page 11 MCOTS-B-600-31-HT Input:440-700 V Output:31 V Current:32 A Flanged Encased Mechanical Diagram 3.150 [80.01] 2.950 [74.93] PIN EXTENSION 0.180 [4.57] SEATING PLANE HEIGHT 0.495 0.025 [12.57 0.63] 2.486 [63.14] 1.400 [35.56] 6 5 TOP VIEW 0.010 [0.25] 1.300 [33.02] 1.866 [47.40] 1.900 [48.26] 2.386 [60.60] 4 1 0.31 [7.9] 0.775 0.020 [19.69 0.50] 2 1 FLANGE THICKNESS 0.125 [3.18] .130 [3.30] SEE NOTE 1 (6 PLCS) 0.400 [10.16] 0.600 [15.24] 1.400 [35.56] NOTES PIN DESIGNATIONS 1) APPLIED TORQUE PER M3 OR 4-40 SCREW 4 in-lb RECOMMENDED (5 in-lb LIMIT) 2) BASEPLATE FLATNESS TOLERANCE IS 0.01" (.25 mm) TIR FOR SURFACE. 3) PINS 1-4 ARE 0.040" (1.02 mm) DIA. WITH 0.080" (2.03 mm) DIA. STANDOFFS 4) PINS 5 AND 6 ARE 0.080" (2.03 mm) DIA. WITH 0.125" (3.18mm) DIA STANDOFFS 5) ALL PINS: MATERIAL: COPPER ALLOY FINISH: MATTE TIN OVER NICKEL PLATE 6) WEIGHT: 5.0 oz (143 g) 7) ALL DIMENSIONS IN INCHES(mm) TOLERANCES: X.XX IN +/-0.02 (X.X mm +/-0.5 mm) X.XXX IN +/-0.010 (X.XX mm +/-0.25 mm) Product # MCOTS-B-600-31-HT 3 Phone 1-888-567-9596 Pin 1 2 3 4 5 6 www.synqor.com Name Function Vin(+) Positive input voltage TTL input to turn converter on and off, ON/OFF referenced to Vin(–), with internal pull up. Clock Clock synchronization Sync Vin(–) Negative input voltage Vout(–) Negative output voltage Vout(+) Positive output voltage Doc.# 005-0006395 Rev. A 05/22/2015 Page 12 MCOTS-B-600-31-HT Input:440-700 V Output:31 V Current:32 A Qualifications & Screening Mil-COTS Qualification Life Testing Visual, mechanical and electrical testing before, during and after 1000 hour burn-in @ full load # Tested (# Failed) 15 (0) Shock-Vibration Visual, mechanical and electrical testing before, during and after shock and vibration tests 5 (0) Test Name Details Consistent with MIL-STD-883F Consistent with MIL-STD-883F Method 1005.8 MIL-STD-202, Methods 201A & 213B 8 Method 1004.7 (0) 10 500 cycles of -55 ˚C to +100 ˚C (30 minute Temperature Cycling dwell at each temperature Method 1010.8 Condition A (0) 15 15 pins Solderability Method 2003 (0) 7 -65 ˚C to +110 ˚C across full line and load DMT specifications in 5 ˚C steps (0) 2 70,000 feet (21 km), see Note Altitude (0) Note: A conductive cooling design is generally needed for high altitude applications because of naturally poor convective cooling at rare atmospheres. +85 ˚C, 85% RH, 1000 hours, 2 minutes on/6 hours off Humidity Mil-COTS DC/DC Converter and Filter Screening Screening 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 Temperature Cycling 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-B-600-31-HT ● Phone 1-888-567-9596 www.synqor.com Doc.# 005-0006395 Rev. A 05/22/2015 Page 13 MCOTS-B-600-31-HT Input:440-700 V Output:31 V Current:32 A Ordering Information/ Part Numbering Example: MCOTS-B-600-31-HT Not all combinations make valid part numbers, please contact SynQor for availability. See product summary page for details. Family MCOTS Product B: Bus Converter Input Voltage 600: 440-700V Output Voltage Package 31: 31V HT: Half Brick Tera Thermal Design Screening Level Options N: Normal Threaded S: S-Grade Standard D: Normal Non[ ]: M: M-Grade Feature Threaded F: Flanged Application Notes A variety of application notes and technical white papers can be downloaded in pdf format from our website. Contact SynQor for further information and to order: Phone: Toll Free: Fax: E-mail: Web: Address: Product # MCOTS-B-600-31-HT 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 PATENTS SynQor holds numerous U.S. patents, one or more of which apply to most of its power converter products. Any that apply to the product(s) listed in this document are identified by markings on the product(s) or on internal components of the product(s) in accordance with U.S. patent laws. SynQor’s patents include the following: 5,999,417 6,222,742 6,545,890 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. www.synqor.com Doc.# 005-0006395 Rev. A 05/22/2015 Page 14