MCOTS-C-28-15-QT-N-S

MCOTS-C-28-15-QT Single Output Quarter Brick MILITARY COTS DC/DC CONVERTER 16-40V Continuous Input 16-50V Transient Input 15V Output 8A Output ad pu bl va ic n at ce io d n 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 91% @ 4A / 89% @ 8A Efficiency Mil-COTS 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, 89% at full rated load current • Operating input voltage range: 16-40 V • Fixed frequency switching provides predictable EMI • No minimum load requirement Mechanical Features Protection 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) • Input under-voltage lockout • Output current limit and short circuit protection • Active back bias limit • Output over-voltage protection • Thermal shutdown 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 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 Product # MCOTS-C-28-15-QT www.synqor.com Doc.# 005-0005276 Rev. 1 06/16/09 Page 1 MCOTS-C-28-15-QT Output: 15V Current: 8A Technical Specification BLOCK DIAGRAM ad pu bl va ic n at ce io d n TYPICAL CONNECTION DIAGRAM Vin External Input Filter Vin(+) Vout(+) Electrolytic Vsense(+) Trim Rtrim-up ON/OFF or Vsense(_) Vout(_) Rtrim-down Cload Iload Vin(_) Product # MCOTS-C-28-15-QT Phone 1-888-567-9596 www.synqor.com Doc.# 005-0005276 Rev. 1 06/16/09 Page 2 MCOTS-C-28-15-QT Output: 15V Current: 8A Technical Specification MCOTS-C-28-15-QT ELECTRICAL CHRACTERISTICS 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 during Load Current Transient Step Change in Output Current (0.1 A/µs) Settling Time Output Voltage Trim Range Output Voltage Remote Sense Range Output Over-Voltage Protection DYNAMIC CHARACTERISTICS Turn-On Transient Turn-On Time Start-Up Inhibit Time Output Voltage Overshoot EFFICIENCY 100% Load 50% Load Ta = 25 °C, airflow rate = 300 LFM, Vin = 28Vdc unless otherwise noted; full operating temperature range is -40 °C to +100 °C baseplate temperature with appropriate power derating. Specifications subject to change without notice. Parameter Min. Typ. Max. 60 40 50 Units V V V Notes & Conditions ad pu bl va ic n at ce io d n -40 -55 -2 16 2250 2250 2250 100 125 18 40 V dc V dc V dc °C °C V V Baseplate temperature 28 15.1 14.2 15.4 14.5 0.9 100 1.0\6.6 115 2 0.45 400 15 15.7 14.8 11.174 140 4 TBD V V V µF µH\µF A mA mA V mA A V 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 14.85 15.15 -225 14.625 0 ±0.1 ±0.1 ±0.3 ±0.3 225 15.375 70 20 8 10.4 % % mV V 0 8.8 35 8 9.6 9 0.3 TBD 800 100 1000 mV mV A A V A mA µF mV µs % % V ms ms % % % 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) -20 17.55 18.3 9 230 0 10 10 19.05 200 250 Full load, Vout=90% nom. -40 °C to +125 °C; Figure F Maximum Output Capacitance 88.6 91.1 See Figure 1 for efficiency curve See Figure 1 for efficiency curve Product # MCOTS-C-28-15-QT Phone 1-888-567-9596 www.synqor.com Doc.# 005-0005276 Rev. 1 06/16/09 Continuous Continuous 1 s transient, square wave 50% to 75% to 50% Iout max To within 1% Vout nom Across Pins 8&4; Common Figures 3-5; see Note 2 Across Pins 8&4 Over full temp range Page 3 MCOTS-C-28-15-QT Output: 15V Current: 8A Technical Specification MCOTS-C-28-15-QT ELECTRICAL CHRACTERISTICS (cont.) Ta = 25 °C, airflow rate = 300 LFM, Vin = 28Vdc unless otherwise noted; full operating temperature range is -40 °C to +100 °C baseplate temperature with appropriate power derating. Specifications subject to change without notice. ISOLATION CHARACTERISTICS Isolation Voltage (dielectric strength) See Absolute Maximum Ratings Isolation Resistance 30 MΩ Isolation Capacitance (input to output) 1000 pF See Note 1 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: Higher values of isolation capacitance can be added external to the module. ad pu bl va ic n at ce io d n Product # MCOTS-C-28-15-QT Phone 1-888-567-9596 www.synqor.com Doc.# 005-0005276 Rev. 1 06/16/09 Page 4 MCOTS-C-28-15-QT Output: 15V Current: 8A Technical Specification 95 90 16 20 18 85 Power Dissipation (W) 14 12 10 8 6 4 2 0 Efficiency (%) ad pu bl va ic n at ce io d n 75 70 65 60 40 Vin 28 Vin 16 Vin 40 Vin 28 Vin 16 Vin 80 0 1 2 3 4 5 6 7 8 0 1 2 3 4 5 6 7 8 Load Current (A) Load Current (A) Figure 1: Efficiency at nominal output voltage vs. load current for minimum, nominal, and maximum input voltage at 25°C. Figure 2: Power dissipation at nominal output voltage vs. load current for minimum, nominal, and maximum input voltage at 25°C. 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 Iout (A) 400 LFM (2.0 m/s) 300 LFM (1.5 m/s) 200 LFM (1.0 m/s) 100 LFM (0.5 m/s) Iout (A) 400 LFM (2.0 m/s) 300 LFM (1.5 m/s) 200 LFM (1.0 m/s) 100 LFM (0.5 m/s) 0 25 40 55 70 85 0 25 40 55 70 85 Ambient Air Temperature (°C) 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 (1V/div), Ch 2: Iout (2A/div). Phone 1-888-567-9596 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). Doc.# 005-0005276 Rev. 1 06/16/09 Product # MCOTS-C-28-15-QT www.synqor.com Page 5 MCOTS-C-28-15-QT Output: 15V Current: 8A Technical Specification 120 Nominal Vout 100 Typical Current Limit Inception Point ad pu bl va ic n at ce io d n Output Voltage (%) 80 Typical Output Voltage at Shutdown 60 40 Vin min 20 Vin nom Vin max 0 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. 100,000.0 Figure 8: Output voltage vs. load current showing typical current limit curves and converter shutdown points. Trim Up Trim Down Trim Resistance (kOhms) 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-28-15-QT Phone 1-888-567-9596 www.synqor.com Doc.# 005-0005276 Rev. 1 06/16/09 Page 6 MCOTS-C-28-15-QT Output: 15V Current: 8A Technical Specification MIL-COTS Qualification Test Name Life Testing Details 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 +85˚C, 85%RH, 1000 hours, 2 minutes on/6 hours off 500 cycles of -40˚C to +100˚C (30 minute dwell at each temperature 15 pins #Tested (# Failed) 15 (0) Consistent with MIL-STD-883F Method Method 1005.8 Consistent with MILSTD-883F Method 5005 ad pu bl va ic n at ce io d n Shock-Vibration Humidity 5 (0) 8 (0) MIL-STD-202, Method 1 Method 1004.7 Temperature Cycling Solderability DMT 10 (0) 15 (0) Method 1010.8 Method 2003 Condition A -65˚C to +110˚C across full lne and load specificatonsin 5˚C steps 7 (0) MIL-COTS Screening Screening Process Description Standard Military (MIL Grade) Baseplate Operating Temperature Storage Temperature Pre-Cap inspection Temperature Cyclling Burn-In -55˚C to +100˚C -65˚C to +135˚C -55˚C to +100˚C -65˚C to +135˚C IPC-610, Class III ● ● Method 1010, Condition B, 10 Cycles 100˚C Baseplate 100% MIL-STD-2008 ● 12 Hours 25˚C 96 Hours Final Electrical Test -55˚C, +25˚C, +100˚C Final Visual Inspection ● ● Product # MCOTS-C-28-15-QT Phone 1-888-567-9596 www.synqor.com Doc.# 005-0005276 Rev. 1 06/16/09 Page 7 MCOTS-C-28-15-QT Output: 15V Current: 8A Technical Specification BASIC OPERATION AND 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 stepup or step-down to achieve the output voltage required. 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. CONTROL FEATURES 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. ad pu bl va ic n at ce io d n 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 These converters 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. [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 Remote Enable Circuit Negative Logic (Permanently Enabled) ON/OFF 5V 50k ON/OFF 50k TTL/ CMOS TTL ON/OFF 100pF Vin(_) Vin(_) Vin(_) Open Collector Enable Circuit Direct Logic Drive Figure A: Various circuits for driving the ON/OFF pin. Phone 1-888-567-9596 Figure B: Internal ON/OFF pin circuitry 06/16/09 Product # MCOTS-C-28-15-QT www.synqor.com Doc.# 005-0005276 Rev. 1 Page 8 MCOTS-C-28-15-QT Output: 15V Current: 8A Technical Specification 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. 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 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” 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 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 CurrentLimit Shutdown Voltage, the converter turns off. ad pu bl va ic n at ce io d n Rtrim-down = 511 - 10.22 (kW) ∆% () where ∆% = Vnominal – Vdesired x 100% Vnominal 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+∆%) 1.225∆% _ 511 _ 10.22 ∆% ) (kW) The converter then enters a “hiccup mode” where it repeatedly turns on and off at a 5 Hz (nominal) frequency with a 5% duty cycle until the short circuit condition is removed. This prevents excessive heating of the converter or the load board. 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. 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. It is not necessary for the user to add capacitance at the Trim pin. The node is internally bypassed to eliminate noise. 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. 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. Product # MCOTS-C-28-15-QT Phone 1-888-567-9596 www.synqor.com Doc.# 005-0005276 Rev. 1 06/16/09 Page 9 MCOTS-C-28-15-QT Output: 15V Current: 8A Technical Specification APPLICATION CONSIDERATIONS Input System Instability: This condition can occur because Application Circuits: Figure C provides a typical circuit diagram any dc-dc converter appears incrementally as a negative which details the input filtering and voltage trimming. 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. ad pu bl va ic n at ce io d n Vin(+) Vout(+) Vin External Input Filter Electrolytic Capacitor Vsense(+) Trim Rtrim-up ON/OFF or Vsense(_) Vout(_) Rtrim-down Cload Iload Vin(_) Figure C: Typical application circuit (negative logic unit, permanently enabled). Input Filtering and External Capacitance: Figure D provides a diagram showing the internal input filter components. This filter dramatically reduces input terminal ripple current, which otherwise could exceed the rating of an 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. Lin Vin(+) C1 C2 Regulation Stage Isolation Stage Vin(_) Figure D: Internal Input Filter Diagram (component values listed on the specifications page). Product # MCOTS-C-28-15-QT Phone 1-888-567-9596 www.synqor.com Doc.# 005-0005276 Rev. 1 06/16/09 Page 10 MCOTS-C-28-15-QT Output: 15V Current: 8A Technical Specification 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 Shutdown • Over Temperature Shutdown • Current Limit • Short Circuit Protection 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 base-plate temperature, TB, is 100 ºC. As long as the user’s thermal system keeps TB < 100 ºC, the converter can deliver its full rated power. 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, RTHBA, 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 the be used to determine the maximum power the converter can dissipate for a given thermal condition if its base-plate is to be no higher than 100 ºC. ad pu bl va ic n at ce io d n • Output Over-Voltage Protection • Turned off by the ON/OFF input Vin Under-Voltage Lockout TurnOn Threshold Figure E shows three turn-on scenarios, where a Startup Inhibit 100 ºC - TA max Period is initiated at t0, t1, and t2: Pdiss = RTHBA Before time t0, when the input voltage is below the UVL threshold, the unit is disabled by the Input Under-Voltage Lockout feature. This value of power dissipation can then be used in conjunction When the input voltage rises above the UVL threshold, the Input with the data shown in Figure 2 to determine the maximum load Under-Voltage Lockout is released, and a Startup Inhibit Period is current (and power) that the converter can deliver in the given initiated. At the end of this delay, the ON/OFF pin is evaluated, thermal condition. and since it is active, the unit turns on. For convenience, power derating curves for an encased converter At time t1, the unit is disabled by the ON/OFF pin, and it cannot without a heatsink and with a typical heatsink are provided for each output voltage. be enabled again until the Startup Inhibit Period has elapsed. ON/OFF (neg logic) ON OFF ON OFF ON Vout (typical start-up inhibit period) 200ms 9ms (typical turn on time) 200ms 200ms t0 t1 t2 t Figure E: Startup Inhibit Period (turn-on time not to scale) Product # MCOTS-C-28-15-QT Phone 1-888-567-9596 www.synqor.com Doc.# 005-0005276 Rev. 1 06/16/09 Page 11 MCOTS-C-28-15-QT Output: 15V Current: 8A Technical Specification Mechanical Drawing Top View 1.536 ±0.020 (39.01 ±0.5) 0.600 (15.24) 0.450 (11.43) 0.300 (7.62) 0.150 (3.81) 0.253±0.020 (6.4±0.5) Side View 0.500±0.025 (12.7±0.63) Overall Height 0.18±0.010 (4.57±0.25) ad pu bl va ic n at ce io d n 0.263±0.020 (6.68±0.5) 87654 2.386 ± 0.020 (60.6± 0.5) 2.00 (50.8) 1.86 (47.2) M3 Threaded Inserts 4 Places See Notes 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) NOTES PIN DESIGNATIONS Function Positive input voltage 1) M3 screws used to bolt unit’s baseplate to other surfaces (such as a heatsink) must not exceed 0.100" (2.54 mm) depth below the surface of the baseplate. 2) Applied torque per screw should not exceed 6in-lb. (0.7 Nm). Pin 1 2 3 Name Vin(+) ON/OFF Vin(–) 3) Baseplate flatness tolerance is 0.004" (.10mm) TIR for surface. TTL input to turn converter on and off, referenced to Vin(–), with internal pull up. Negative input voltage Negative output voltage Negative remote sense1 Output voltage trim2 Positive remote sense3 Positive output voltage 4) Pins 1-3, 5-7 are 0.040” (1.02mm) diameter, with 0.080” (2.03mm) diameter standoff shoulders. 4 5 7 8 Vout(–) TRIM 5) Pins 4 and 8 are 0.062” (1.57 mm) diameter with 0.100" (2.54 mm) diameter standoff shoulders. 6) All Pins: Material - Copper Alloy- Finish (RoHS 6/6) - Matte Tin over Nickel plate 7) Undimensioned components are shown for visual reference only. 8) Weight: 3.02 oz. (85.7 g) typical 9) All dimensions in inches (mm) Tolerances: x.xx +/-0.02 in. (x.x +/-0.5mm) x.xxx +/-0.010 in. (x.xx +/-0.25mm) SENSE(–) 6 SENSE(+) Vout(+) Notes: 1) SENSE(–) should be connected to Vout(–) either remotely or at the converter. Leave TRIM pin open for nominal output voltage. 2) 10) Workmanship: Meets or exceeds IPC-A-610C Class II 3) 11) Recommended pin length is 0.03” (0.76mm) greater than the PCB thickness. Phone 1-888-567-9596 SENSE(+) should be connected to Vout(+) either remotely or at the converter. Doc.# 005-0005276 Rev. 1 06/16/09 Product # MCOTS-C-28-15-QT www.synqor.com Page 12 MCOTS-C-28-15-QT Output: 15V Current: 8A Technical Specification Ordering Information/ Part Numbering Family Product Input Voltage Output Voltage 1R2: 1.2V 1R5: 1.5V 1R8: 1.8V 2R5: 2.5V 3R3: 3.3V 05: 5V 07: 7V 12: 12V 15: 15V 24: 24V 28: 28V 40: 40V 48: 48V P: Passive T: Active Package FT: Full Brick HP: Half Brick Peta HZ: Half Brick Zeta QT: Quarter Brick EG: Eighth Brick SM: Sixteenth Brick Heatsink Option Screening Level ad pu bl va ic n at ce io d n MCOTS C: Converter F: Filter 28: 16-40V 48: 34-75V 270: 155-400V N: Normal F: Flanged S: Standard M: M-Grade Example MCOTS-C-28-15-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 rohs@synqor.com. 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: 978-849-0600 888-567-9596 978-849-0602 mqnbofae@synqor.com www.synqor.com 155 Swanson Road Boxborough, MA 01719 USA 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. Product # MCOTS-C-28-15-QT Phone 1-888-567-9596 www.synqor.com Doc.# 005-0005276 Rev. 1 06/16/09 Page 13