MCOTS-C-48-30-QT SynQor Worldwide Headquarters, MCOTS-C-48-30-QT Datasheet

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MCOTS-C-48-30-QT

Manufacturer Part Number
MCOTS-C-48-30-QT
Description
High Reliability Dc-dc Converter
Manufacturer
SynQor Worldwide Headquarters
Datasheet
Product # MCOTS-C-48-30-QT
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
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.
Continuous Input
• High efficiency, 91% at full rated load current
• Operating input voltage range: 34-75V
• Fixed frequency switching provides predictable EMI
• No minimum load requirement
• Industry standard quarter-brick pin-out configuration
• Size:
• Total weight: 3.02 oz. (85.7 g)
• Flanged baseplate version available
• On/Off control referenced to input return
• Remote sense for the output voltage
• Output voltage trim range of +10%, -20%
Operational Features
Control Features
Mechanical Features
34-75V
ensures
1.54” x 2.39” x 0.50”
(39.0 x 60.6 x 12.7 mm)
M
ILITARY
survivability
Phone 1-888-567-9596
Transient Input
34-100V
Full Power Operation: -55°C to +100°C
COTS DC/DC C
in
demanding
www.synqor.com
Output
30V
• AS9100 and ISO 9001:2008 certified facility
• Qualification consistent with MIL-STD-883
• Available with S-Grade or M-Grade screening
• Temperature cycling per MIL-STD-883, Method 1010,
• Burn-In at 100C baseplate temperature
• Final visual inspection per MIL-STD-2008
• Full component traceability
• 2250V, 30 MΩ input-to-output isolation
• Certified 60950-1 requirement for basic insulation
• Input under-voltage lockout
• Output current limit and short circuit protection
• Active back bias limit
• Output over-voltage protection
• Thermal shutdown
Condition B, 10 cycles
(see Standards and Qualifications page)
Designed and Manufactured in the USA
Safety Features
Screening/Qualification
Protection Features
Output
5A
Mil-COTS
Doc.# 005-0005423 Rev. B
ONVERTER
92% @ 2.5A / 91% @ 5A
MCOTS-C-48-30-QT
Single Output
Quarter-brick
Efficiency
04/23/10
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MCOTS-C-48-30-QT Summary of contents

Page 1

... Total weight: 3.02 oz. (85.7 g) • Flanged baseplate version available Control Features • On/Off control referenced to input return • Remote sense for the output voltage • Output voltage trim range of +10%, -20% Product # MCOTS-C-48-30-QT Phone 1-888-567-9596 COTS DC/DC C 34-100V 30V Output Full Power Operation: -55°C to +100°C ...

Page 2

... Technical Specification BLOCK DIAGRAM 1 POSITIVE INPUT 3 INPUT RETURN UVLO OVSD 2 ON/OFF TYPICAL CONNECTION DIAGRAM External V in Input Filter Product # MCOTS-C-48-30-QT Phone 1-888-567-9596 REGULATION STAGE CURRENT SENSE T1 GATE DRIVERS CURRENT LIMIT PRIMARY CONTROL V in(+) Electrolytic Capacitor ON/OFF V in www.synqor.com MCOTS-C-48-30-QT Output: 30V Current: 5 ...

Page 3

... Technical Specification MCOTS-C-48-30-QT ELECTRICAL CHARACTERISTICS °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 ABSOLUTE MAXIMUM RATINGS Input Voltage Non-Operating Operating Operating Transient Protection ...

Page 4

... Technical Specification MCOTS-C-48-30-QT ELECTRICAL CHARACTERISTICS °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 DYNAMIC CHARACTERISTICS Turn-On Transient Turn-On Time Start-Up Inhibit Time ...

Page 5

... Base Plate Temperature (°C) Figure 5: Maximum output current vs. base plate temperature (nominal input voltage). Product # MCOTS-C-48-30-QT Phone 1-888-567-9596 100 Vin 48 Vin 65 75 Vin 60 -55ºC ...

Page 6

... 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 Vout (2V/div Iout (2.5A/div). Product # MCOTS-C-48-30-QT Phone 1-888-567-9596 Figure 8: Turn-on transient at full resistive load and zero output capacitance initiated by Vin. ON/OFF Pin previously low Vout (50V/div Vin (10V/div) ...

Page 7

... DC/DC C Converter V SOURCE 100 µF, 0.2Ω ESR electrolytic 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-48-30-QT Phone 1-888-567-9596 0 -10 -20 -30 -40 -50 -60 48Vin -70 75Vin -80 34Vin ...

Page 8

... Vin( _ Open Collector Enable Circuit Figure A: Various circuits for driving the ON/OFF pin. Product # MCOTS-C-48-30-QT Phone 1-888-567-9596 CONTROL FEATURES REMOTE ON/OFF (Pin 2): The ON/OFF input, Pin 2, permits the user to control when the converter off. This input is referenced to the return terminal of the input bus, Vin(-). ...

Page 9

... Increase in Vout Figure C: Trim graph for trim-up, trim down. Product # MCOTS-C-48-30-QT Phone 1-888-567-9596 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 V specifications, the maximum variation of the dc value both trimming and remote load voltage drops, should not be greater than that specified for the output voltage trim range ...

Page 10

... The recommended external input capacitance V in(+) V in Product # MCOTS-C-48-30-QT Phone 1-888-567-9596 Application Circuits: Figure D provides a typical circuit diagram which details the input filtering and voltage trimming in(+) out(+) Electrolytic ...

Page 11

... Figure F: Startup Inhibit Period (turn-on time not to scale) Product # MCOTS-C-48-30-QT Phone 1-888-567-9596 When the ON/OFF pin goes high after t Period has elapsed, and the output turns on within the typical Turn-On Time. Thermal Considerations: The maximum operating base- plate temperature 100 º ...

Page 12

... Weight: 3.02 oz. (85.7 g) typical 8) All dimensions in inches (mm) Tolerances: x.xx +/-0.02 in. (x.x +/-0.5mm) x.xxx +/-0.010 in. (x.xx +/-0.25mm) 9) Workmanship: Meets or exceeds IPC-A610 Class II 10) Recommended pin length is 0.03” (0.76mm) greater than the PCB thickness. Product # MCOTS-C-48-30-QT Phone 1-888-567-9596 0.253±0.020 (6.4±0. 0.263±0.020 (6.68±0.5) Top View 1.86 (47 ...

Page 13

... A thermal interface material is required to assure proper heat transfer from the flanged baseplate to the cooling surface. Thermal grease, conductive pads, compounds, and other similar products are available from many heatsink manufacturers. Product # MCOTS-C-48-30-QT Phone 1-888-567-9596 .01 [0.2] OVERALL HEIGHT .500 ±.025 [12.7 ± ...

Page 14

... Note: A conductive cooling design is generally needed for high altitude applications because of naturally poor convective cooling at rare atmospheres. Screening Baseplate Operating Temperature Storage Temperature Pre-Cap Inspection Temperature Cycling Burn-In Final Electrical Test Final Visual Inspection Product # MCOTS-C-48-30-QT Phone 1-888-567-9596 Mil-COTS Qualification # Tested Details (# Failed) 15 (0) 5 (0) ...

Page 15

... Contact SynQor for further information: Phone: 978-849-0600 Toll Free: 888-567-9596 Fax: 978-849-0602 E-mail: mqnbofae@synqor.com Web: www.synqor.com Address: 155 Swanson Road Boxborough, MA 01719 USA Product # MCOTS-C-48-30-QT Phone 1-888-567-9596 Ordering Information/ Part Numbering Example MCOTS-C-48-30-QT-N-S Output Package Voltage 1R8: 1.8V 3R3: 3.3V 05: 5V 07: 7V ...

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