0A - SynQor

MCOTS-C-28-15-QE
Single Output
Quarter-brick
MILITARY COTS DC-DC CONVERTER
16-40V
Continuous Input
16-50V
Transient Input
15V
Output
20A
Output
94% @ 10A / 94% @ 20A
Efficiency
Operation: -55°C to +100°C
The MilQor series of Mil-COTS DC-DC converters brings
SynQor’s field proven high-efficiency synchronous
rectification technology to the Military/Aerospace
industry. SynQor’s ruggedized encased packaging
®
approach ensures survivability in demanding
environments. Compatible with the industry standard
format, these converters operate at a fixed frequency,
and follow conservative component derating guidelines.
They are designed and manufactured to comply with a
wide range of military standards.
E-N-M
-28-15-Q
MCOTS-C NVERTER
O
0A
C
C
-D
V @2
DC
0V) IN 15 OUT
28 (16-4
Safety Features
• 2250V, 30 MΩ input-to-output isolation
• Certified 60950-1 requirement for basic insulation
(see Standards and Qualifications page)
Designed and Manufactured in the USA
Control Features
• On/Off control referenced to input return
• Remote sense for the output voltage
• Wide output voltage trim range of +10%, -50%
Mechanical Features
• Industry standard quarter-brick pin-out
• Size:
1.54” x 2.39” x 0.50”
(39.0 x 60.6 x 12.7 mm)
• Total weight: 3.3oz (93.4g)
• Flanged baseplate version available
Protection Features
•
•
•
•
•
Operational Features
•
•
•
•
High efficiency, 94% at full rated load current
Operating input voltage range: 16-40 V
Fixed frequency switching provides predictable EMI
No minimum load requirement
Screening/Qualification
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-28-15-QE
Phone 1-888-567-9596
Input under-voltage lockout
Output current limit and short circuit protection
Active back bias limit
Auto-recovery output over-voltage protection
Thermal shutdown
•
•
•
•
AS9100 and ISO 9001 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.# 005-0006483 Rev. B
06/10/2015
Page 1
MCOTS-C-28-15-QE
Output: 15V
Current: 20A
Technical Specification
BLOCK DIAGRAM
ISOLATION STAGE
REGULATION STAGE
8
CURRENT
SENSE
1
Vout(+)
Vin(+)
3
4
IN RTN
ISOLATION BARRIER
OUT RTN
GATE DRIVERS
CURRENT
LIMIT
UVLO
GATE CONTROL
6
OPTO-ISOLATION
PRIMARY
CONTROL
TRIM
SECONDARY
CONTROL
7
SENSE(+)
2
5
ON/OFF
SENSE(-)
DATA COUPLING
TYPICAL CONNECTION DIAGRAM
Vin(+)
Vin
External
Input
Filter
Electrolytic
Capacitor
Vout(+)
Vsense(+)
ON/OFF
Trim
Vsense(_)
Vin(_)
Product # MCOTS-C-28-15-QE
Phone 1-888-567-9596
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Rtrim-up
or
Rtrim-down
Cload
Iload
Vout(_)
Doc.# 005-0006483 Rev. B
06/10/2015
Page 2
MCOTS-C-28-15-QE
Output: 15V
Current: 20A
Technical Specification
MCOTS-C-28-15-QE ELECTRICAL CHARACTERISTICS
Tb = 25 °C, Vin = 28dc 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
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 (C1\Lin\C2)
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 (5A/µs)
Settling Time
Output Voltage Trim Range
Output Over-Voltage Protection
EFFICIENCY
100% Load
50% Load
Product # MCOTS-C-28-15-QE
Typ.
-1
-55
-65
-2
Max.
Units
60
40
50
V
V
V
2250
2250
2250
+100
+135
9
V dc
V dc
V dc
°C
°C
V
16
28
40
V
14.7
13.4
15.2
13.9
1.3
220
15.7
14.4
V
V
V
µF
0.1\0.22\28.3
26.3
250
8
Continuous
Continuous
1s transient, square wave
Baseplate temperature
50V transient for 1s
Typical ESR 0.1-0.2 Ω; Figure 13
Internal values; see Figure D
Vin min; trim up; in current limit
30
A
mA
mA
V
mA
A
15.00
15.15
V
±0.25
±0.25
±0.35
±0.35
260
15.34
%
%
mV
V
260
70
20
26.0
10
mV
mV
A
A
V
A
mA
mF
10
18.9
mV
µs
%
V
50% to 75% to 50% Iout max, 100μF load cap
To within 1% Vout nom
Across Pins 7 & 5; Figure B
Over full temp range
%
%
See Figure 1 for efficiency curve
See Figure 1 for efficiency curve
200
5
2.5
550
14.85
µF\µH\µF
Notes & Conditions
0.25V/µs input transient; See Figure 12
RMS
Fast acting external fuse recommended
See Note 1
-260
14.67
130
35
0
22.0
24.0
6
5
3
500
80
-50
17.5
Phone 1-888-567-9596
18.2
94
94
www.synqor.com
Over sample, line, load, temperature & life
20MHz bandwidth; see Note 2
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)
Doc.# 005-0006483 Rev. B
06/10/2015
Page 3
MCOTS-C-28-15-QE
Output: 15V
Current: 20A
Technical Specification
MCOTS-C-28-15-QE ELECTRICAL CHARACTERISTICS
Tb = 25 °C, Vin = 28dc unless otherwise noted; full operating temperature range is -55 °C to +100 °C baseplate temperature with appropriate power
derating. Specifications subject to change without notice.
Parameter
Min.
Typ.
Max.
Units
Notes & Conditions
DYNAMIC CHARACTERISTICS
Turn-On Transient
Turn-On Time
35
ms
Full load, Vout=90% nom.
Output Voltage Overshoot
2
%
Maximum Output Capacitance
ISOLATION CHARACTERISTICS
Isolation Voltage (dielectric strength)
2250
V
See Absolute Maximum Ratings
Isolation Resistance
30
MΩ
Isolation Capacitance (input to output)
1000
pF
See Note 3
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 Regulation Stage
230
240
250
kHz
Switching Frequency Isolation Stage
115
120
125
kHz
ON/OFF Control
Off-State Voltage
2.4
9.0
V
On-State Voltage
-2.0
0.8
V
ON/OFF Control
Pull-Up Voltage
4.75
5.00
5.25
V
Pull-Up Resistance
20
kΩ
Over-Temperature Shutdown OTP Trip Point
120
°C
Average PCB Temperature
Over-Temperature Shutdown Restart Hysteresis
10
°C
RELIABILITY CHARACTERISTICS
Calculated MTBF per MIL-HDBK-217F
3.4
106 Hrs. Ground Benign, 70°C Tb
Calculated MTBF per MIL-HDBK-217F
0.58
106 Hrs. Ground Mobile, 70°C Tb
Note 1: Line and load regulation is limited by duty cycle quantization and does not indicate a shift in the internal voltage reference.
Note 2: For applications requiring reduced output voltage ripple and noise, consult SynQor applications support (e-mail: [email protected]).
Note 3: Higher values of isolation capacitance can be added external to the module.
STANDARDS COMPLIANCE
Parameter
Notes & Conditions
STANDARDS COMPLIANCE
UL 60950-1/R:2011-12
CAN/CSA-C22.2 No. 60950-1/A1:2011
EN 60950-1/A2:2013
Basic Insulation
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-28-15-QE
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0006483 Rev. B
06/10/2015
Page 4
MCOTS-C-28-15-QE
Output: 15V
Current: 20A
Technical Specification
95
95
90
90
85
85
Efficiency (%)
100
Efficiency (%)
100
80
75
75
70
70
16 Vin
16 Vin
40 Vin
0
2
4
6
8
10
12
14
16
18
28 Vin
65
28 Vin
65
60
80
40 Vin
60
-55ºC
20
25ºC
Figure 2: Efficiency at nominal output voltage and 60% rated power vs.
case temperature for minimum, nominal, and maximum input voltage.
40
40
35
35
30
30
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.
25
20
15
10
16 Vin
25
20
15
10
28 Vin
5
0
16 Vin
5
28 Vin
40 Vin
0
2
4
6
8
10
12
14
16
18
40 Vin
0
-55ºC
20
25ºC
100ºC
Case Temperature (ºC)
Load Current (A)
Figure 3: Power Dissipation at nominal output voltage vs. load current
for minimum, nominal, and maximum input voltage at TCASE=25°C.
Figure 4: Power Dissipation at nominal output voltage and 60% rated power
vs. case temperature for minimum, nominal, and maximum input voltage.
25
18
15
Output Voltage (V)
20
Iout(A)
100ºC
Case Temperature (ºC)
Load Current (A)
15
10
12
9
6
16 Vin
5
28 Vin
3
40 Vin
0
50
60
70
80
90
100
0
110
Base Plate Temperature (ºC)
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5
10
15
20
25
30
Load Current (A)
Figure 5: Thermal Derating (maximum output current vs. base plate
temperature) at nominal input voltage.
Product # MCOTS-C-28-15-QE
0
Figure 6: Output I-V Characteristics (output voltage vs. load current)
showing typical current limit curves. See Current Limit section in the
Application Notes.
www.synqor.com
Doc.# 005-0006483 Rev. B
06/10/2015
Page 5
MCOTS-C-28-15-QE
Output: 15V
Current: 20A
Technical Specification
Figure 7: Typical Startup Waveform, input voltage pre-applied, ON/OFF Pin
on Ch 2.
Figure 8: Turn-On Transient at full resistive load and zero output capacitance
initiated by Vin. Ch 1: Vout (5V/div). Ch 2: Vin (20V/div).
Figure 9: Input Terminal Current Ripple, iC, at full rated output current and
nominal input voltage with 220µF electrolytic capacitor (1A/div). Bandwidth:
20MHz. See Figure 13.
Figure 10: Output Voltage Ripple, Vout, at nominal input voltage and rated load
current (100 mV/div). Load capacitance: 1µF ceramic capacitor and 100µF
electrolytic capacitor. Bandwidth: 20 MHz. See Figure 13.
Figure 11: Output Voltage Response to Step-Change in Load Current (50%75%-50% of Iout(max); dI/dt = 5 A/µs). Load cap: 1 µF ceramic and 100 µF
electrolytic capacitors. Ch 1: Vout (500mV/div), Ch 2: Iout (10A/div).
Figure 12: Output Voltage Response to Step-Change in Input Voltage (250V/
ms). Load cap: 100 µF electrolytic output capacitance. Ch 1: Vin (2V/div), Ch 2:
Vout (20V/div).
Product # MCOTS-C-28-15-QE
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0006483 Rev. B
06/10/2015
Page 6
MCOTS-C-28-15-QE
Output: 15V
Current: 20A
Technical Specification
Input
Reflected
Ripple
Current
source
impedance
iS
Input
Terminal
Ripple
Current
iC
Output
Voltage
Ripple
DC-DC
Converter
VOUT
VSOURCE
electrolytic
capacitor
ceramic electrolytic
capacitor capacitor
Figure 13: Test Set-up Diagram showing measurement points for Input
Terminal Ripple Current (Figure 9) and Output Voltage Ripple (Figure 10).
Product # MCOTS-C-28-15-QE
Phone 1-888-567-9596
Figure 14: Output Short Load Current (20A/div) as a function of time (20ms/
div) when the converter attempts to turn on into a 10 mΩ short circuit.
www.synqor.com
Doc.# 005-0006483 Rev. B
06/10/2015
Page 7
MCOTS-C-28-15-QE
Output: 15V
Current: 20A
Technical Specification
BASIC OPERATION AND FEATURES
CONTROL FEATURES
This converter series uses a two-stage power conversion topology.
The first stage 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 stepdown to achieve the low 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(-).
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
significantly less energy than Schottky diodes, enabling the
converter to achieve high efficiency.
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. To further withstand harsh environments and
thermally demanding applications, the converter is available totally
encased. See Ordering Information page for available thermal
design options.
SynQor quarter-brick converters use the industry standard footprint
and pin-out.
ON/OFF
Remote Enable Circuit
ON/OFF
Open Collector Enable Circuit
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.
Rtrim-down =
where
ON/OFF
Direct Logic Drive
(
511%
– 10.22
Δ%
) kΩ
Vnominal – Vdesired
× 100%
Vnominal
To increase the output voltage, the user should connect a resistor
between Pin 6 (TRIM) and Pin 7 (SENSE(+) input). For a desired
increase of the nominal output voltage, the value of the resistor
should be:
Δ% =
Vin(_)
Vin(_)
Pin 7 should connect to Vout(+) and Pin 5 should connect to Vout() at the point on the board where regulation is desired. If these
connections are not made, the converter will deliver an output
voltage that is slightly higher than its specified value.
To decrease the output voltage, the user should connect a resistor
between Pin 6 (TRIM) and Pin 5 (SENSE(-) input). For a desired
decrease of the nominal output voltage, the value of the resistor
should be:
Negative Logic
(Permanently
Enabled)
5V
ON/OFF
TTL/
CMOS
REMOTE SENSE Pins 7(+) and 5(-): The SENSE(+) and
SENSE(-) inputs correct for voltage drops along the conductors that
connect the converter’s output pins to the load.
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. SynQor uses industry
standard trim equations.
Vin(_)
Vin(_)
In negative logic versions, the ON/OFF signal is active low (meaning
that a low voltage turns the converter on). In positive logic versions,
the ON/OFF input is active high (meaning that a high voltage turns
the converter on). Fig A details possible circuits for driving the ON/
OFF pin. See last page for available enable logics.
Rtrim-up = 5.11
Figure A: Various Circuits for Driving the ON/OFF Pin.
[
|
(
|
Vnominal
– 2 ) × Vdesired + Vnominal
1.225
Vdesired – Vnominal
] kΩ
The Trim Graph in Figure B shows 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.
Product # MCOTS-C-28-15-QE
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0006483 Rev. B
06/10/2015
Page 8
MCOTS-C-28-15-QE
Output: 15V
Current: 20A
Technical Specification
It is not necessary for the user to add capacitance at the TRIM pin.
The node is internally filtered to eliminate noise.
100,000.0
Trim Resistance (kOhms)
10,000.0
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.
1,000.0
100.0
10.0
1.0
0.1
0.0
0
5
10
15
20
25
% increase Vout
30
35
40
45
50
% decrease Vout
Figure B: Trim Graph.
PROTECTION FEATURES
Input Under-Voltage Lockout (UVLO): The converter is
designed to turn off when the input voltage is too low, helping to
avoid an input system instability problem, which is described in
more detail in the application note titled “Input System Instability”
on the SynQor website. When the input is rising, it must exceed the
typical “Turn-On Voltage Threshold”* before the converter will turn
on. Once the converter is on, the input must fall below the typical
"Turn-Off Voltage Threshold"* before the converter will turn off.
Output Current Limit (OCP): If the output current exceeds
the “Output DC Current Limit Inception” value*, then a fast linear
current limit controller will reduce the output voltage to maintain
a constant output current. If as a result, the output voltage falls
below the “Output DC Current Limit Shutdown Voltage”* for more
than 50 ms, then the unit will enter into hiccup mode, with a 500
ms off-time. The unit will then automatically attempt to restart.
Back-Drive Current Limit: If there is negative output current
of a magnitude larger than the “Back-Drive Current Limit while
Enabled” specification*, then a fast back-drive limit controller will
increase the output voltage to maintain a constant output current.
If this results in the output voltage exceeding the “Output OverVoltage Protection” threshold*, then the unit will shut down.
Output Over-Voltage Limit (OVP): 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 500 ms the converter will automatically restart.
Over-Temperature Shutdown (OTP): A thermistor 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 “OverTemperature 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”*.
Startup Inhibit Period: The Startup Inhibit Period ensures that
the converter will remain off for approximately 500 ms when it is
shut down due to a fault. This generates a 2 Hz “hiccup mode,”
preventing the converter from overheating. There are multiple ways
the converter can be shut down, initiating a Startup Inhibit Period:
•
•
•
•
Output Over-Voltage Protection
Current Limit
Short Circuit Protection
Disabling via ON/OFF input
* See Electrical Characteristics section.
Product # MCOTS-C-28-15-QE
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0006483 Rev. B
06/10/2015
Page 9
MCOTS-C-28-15-QE
Output: 15V
Current: 20A
Technical Specification
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: A typical circuit diagram, Figure C below
details the input filtering and voltage trimming.
Input Filtering and External Input Capacitance: Figure
D below shows 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 of the Electrical Specifications. More
detailed information is available in the application note titled “EMI
Characteristics” on the SynQor website.
Output Filtering and External Output Capacitance: The
internal output filter components are shown in Figure D below. This
filter dramatically reduces output voltage ripple. Some minimum
external output capacitance is required, as specified in the Output
Characteristics area of the Electrical Characteristics section. No
damage will occur without this capacitor connected, but peak
output voltage ripple will be much higher.
Thermal Considerations: For baseplated and encased versions,
the max operating baseplate temperature, TB, is 100 ºC. Refer to
the Thermal Derating Curves in the Technical Figures section 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, RTHBA, of the chosen heatsink
between the baseplate 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.
Pdiss
max
Vin
100 ºC - TA
RTHBA
This value of maximum power dissipation can then be used in
conjunction with the data shown in the Power Dissipation Curves
in the Technical Figures section to determine the maximum load
current (and power) that the converter can deliver in the given
thermal condition.
For convenience, Thermal Derating Curves are provided in the
Technical Figures section.
Vin(+)
Vout(+)
Vsense(+)
Electrolytic
Capacitor
External
Input
Filter
=
ON/OFF
Trim
Vsense(_)
Vin(_)
Rtrim-up
or
Rtrim-down
Cload
Iload
Vout(_)
Figure C: Typical Application Circuit (negative logic unit, permanently enabled).
Lin
Vin(+)
Vout(+)
C1
C2
Regulation
Stage
Current
Sense
Isolation
Stage
Vin(_)
Vout(-)
Figure D: Internal Input and Output Filter Diagram (component values listed
in Electrical Characteristics section).
Product # MCOTS-C-28-15-QE
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www.synqor.com
Doc.# 005-0006483 Rev. B
06/10/2015
Page 10
MCOTS-C-28-15-QE
Output: 15V
Current: 20A
Technical Specification
Mechanical Drawing – Normal Thermal Design Option
1.536 [39.01]
1.030 [26.16]
0.450 [11.43]
SEATING
PLANE HEIGHT
0.500 0.025
[12.7
0.63]
PIN EXTENSION
0.180
[4.57]
0.150 [3.81]
4
5
6
7
8
TOP VIEW
1.860 2.386
[47.24] [60.60]
2.000
[50.80]
0.004 [0.10]
0.08
[2.0]
3
1
0.215
[5.46
0.020
0.50]
2)
3)
4)
5)
6)
7)
PIN DESIGNATIONS
APPLIED TORQUE PER M3 SCREW 4in-lb RECOMMENDED (5in-lb
LIMIT) SCREW SHOULD NOT EXCEED 0.100" (2.54mm) DEPTH
BELOW THE SURFACE OF THE BASEPLATE.
BASEPLATE FLATNESS TOLERANCE IS 0.004" (.10mm)
TIR FOR SURFACE.
PINS 1-3. 5-7 ARE 0.040" (1.02mm) DIA. WITH 0.080"
(2.03mm) DIA. STANDOFFS.
PINS 4 AND 8 ARE 0.062" (1.57mm) DIA. WITH 0.100"
(2.54mm) DIA STANDOFFS
ALL PINS: MATERIAL: COPPER ALLOY
FINISH: MATTE TIN OVER NICKEL PLATE
WEIGHT: 3.3 oz. (93.4 g)
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-28-15-QE
1
0.300 [7.62]
0.600 [15.24]
THREADED INSERT
SEE NOTE 1
(4 PLCS)
NOTES
1)
2
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.# 005-0006483 Rev. B
06/10/2015
Page 11
MCOTS-C-28-15-QE
Output: 15V
Current: 20A
Technical Specification
Mechanical Drawing – Flanged Thermal Design Option
2.200 [55.88]
2.000 [50.80]
1.536 [39.01]
0.450 [11.4]
PIN
EXTENSION
0.180
[4.6]
SEATING
PLANE HEIGHT
.500±.025
[12.7±0.63]
0.150 [3.8]
4 5 6 7 8
0.010 [0.25]
TOP VIEW
2.386
[60.60]
1.300
[33.02]
0.36
[9.1]
2.000
[50.8]
2.066
[52.48]
3
2
1
1
0.70
[17.8]
NOTES
1)
2)
3)
4)
5)
6)
7)
0.600 [15.2]
PIN DESIGNATIONS - CONVERTER
APPLIED TORQUE PER M3 OR 4-40 SCREW 4in-lb RECOMMENDED
(5in-lb LIMIT)
BASEPLATE FLATNESS TOLERANCE IS 0.010" (.25mm) TIR FOR
SURFACE.
PINS 1-3. 5-7 ARE 0.040" (1.02mm) DIA. WITH 0.080"
(2.03mm) DIA. STANDOFFS.
PINS 4 AND 8 ARE 0.062" (1.57mm) DIA. WITH 0.100" (2.54mm)
DIA STANDOFFS
ALL PINS: MATERIAL: COPPER ALLOY
FINISH: MATTE TIN OVER NICKEL PLATE
WEIGHT: 3.5 oz (101.1 g)
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-28-15-QE
0.300 [7.6]
FLANGE
THICKNESS
0.125
[3.2]
.130 [3.30]
SEE NOTE 1
(6 PLCS)
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.# 005-0006483 Rev. B
06/10/2015
Page 12
MCOTS-C-28-15-QE
Output: 15V
Current: 20A
Technical Specification
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
Method
Description
Fungus
508.6
Table 508.6-I
500.5 - Procedure I
Storage: 70,000ft. / 2 Hr. duration
Altitude
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-28-15-QE
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0006483 Rev. B
06/10/2015
Page 13
MCOTS-C-28-15-QE
Output: 15V
Current: 20A
Technical Specification
Ordering Information/ Part Numbering
Example MCOTS-C-28-15-QE-N-M
Not all combinations make valid part numbers, please contact SynQor for availability. See product summary page for details.
Family
MCOTS
Product
C: Converter
Input
Voltage
28: 16-40V
Output
Voltage
05:
12:
15:
28:
50:
5V
12V
15V
28V
50V
Package
QE:
Heatsink Option
QuarterBrick
Exa
N: Normal
Threaded
F: Flanged
Screening
Level
Options
S: S-Grade
Standard
[ ]:
M: M-Grade
Feature
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-C-28-15-QE
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.# 005-0006483 Rev. B
06/10/2015
Page 14