25A

MCOTS-N-28V-60-QT
Single Output
Quarter-brick
Military COTS Non-Isolated DC‑DC Converters
9-60 V
0 - 60 V
25 A
Non-
Quarter-brick
Continuous Input
Output
Current
Isolated
DC-DC Converter
The MCOTS NiQor® Quarter-brick dc-dc converter is
a non-isolated buck-boost regulator, which employs
synchronous rectification to achieve extremely high
conversion efficiency. The High Input Voltage MCOTS
NiQor Brick family of converters can be used in traditional
DPA (distributed power architecture) systems or provide
a regulated output voltage from a battery source or other
variable voltage source. The MCOTS NiQor Brick family
can be configured to Buck the input voltage down to a
lower voltage or Boost the input voltage up to a higher
voltage using a single external resistor.
QT
-60- 25A
- 2 8 V V UT @
N
0 O
TS
M C O 0 V IN 0 - 6
9-6
Operational Features
•
•
•
•
•
•
•
High efficiency, 96% at full rated load current
Delivers up to 25 A of output current
Input Voltage Range: 9-60 Vdc
Output Voltage Range: 0 - 60 V (negative output is possible)
Extensive on-board input and output filtering
No minimum load requirement means no preload resistors required
Adjustable current limit with current monitor
Protection Features
• Input under-voltage lockout protects the converter at low input
voltage conditions
• Over-current shutdown protects converter from excessive
load current or short circuits
• Input/output over-voltage protection protects load and regulator
from damaging voltages
• Thermal shutdown protects converter from abnormal
environmental conditions
Designed and manufactured in the USA.
Control Features
•
•
•
•
On/Off control
Output voltage trim permits custom voltages
Settable current limit
Output voltage trim range of 0V - 60V
Mechanical Features
• Industry standard pin-out configuration
• Standard size: 1.54" x 2.39" x 0.515"
39.01 x 60.6 x 13.08 mm
• Total weight: Encased - 3.5 oz. (100 g)
Screening/Qualification
• AS9100 and ISO 9001 certified facility
• Qualified to MIL-STD-810
• Available with S-Grade or M-Grade screening
• Pre-cap inspection per IPC-A-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-883, Method 2009
• Full component traceability
Product # MCOTS-N-28V-60-QT
Phone 1-888-567-9596
www.synqor.com
Contents
Page No.
Technical Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Application Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Standard Mechanical Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Flanged Mechanical Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Qualifications & Screening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Doc.# 005-0006750 Rev. C
06/15/2016
Page 1
MCOTS-N-28V-60-QT
Output: 0 - 60V
Current: 25A
MCOTS-N-28V-60-QT Electrical Characteristics
Ta = 25 °C, airflow rate = 300 LFM, Vin = 28 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
Vout
Min.
All
All
All
All
-1
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Non-Operating
Operating
Storage Temperature
Voltage at ON/OFF input pin
Voltage at Vset and Iset Pins
Isolation between heatsink/case and all pins
RECOMMENDED OPERATING CONDITIONS
Input Voltage Range
Input Fuse Rating
Input Current
External Input Capacitance
Output Voltage
Output Current
INPUT CHARACTERISTICS
Input Under-Voltage Lockout
Turn-On Voltage Threshold
Turn-Off Voltage Threshold
Lockout Hysteresis
Input Current Limit
No-Load Input Current
“
“
Disabled Input Current
Input Filter Components Value (C\L\C)
OUTPUT CHARACTERISTICS
Output Voltage Range
Operating Output Current Range
Output Voltage Regulation
Load Regulation
Total Output Voltage Range
Output Voltage Ripple and Noise (pk-pk/28Vin)
“
“
Output DC Over Current limit
External Output Capacitance
Output Filter Components
Reverse Current
DYNAMIC CHARACTERISTICS
Output Voltage during Current Transient
For a Step Change in Output Current
Settling Time
For a Step Change in Output Current
Settling Time
Turn on Transient
Startup delay
Rise Rate
Output Voltage Overshoot
Product # MCOTS-N-28V-60-QT
Phone 1-888-567-9596
-65
0
-0.2
All
All
9
All
All
All
100
0
0
All
All
All
All
12
24
48
All
All
9.2
5.1
All
All
0
0
All
All
12
24
48
All
All
All
All
Typ.
Max.
Units
80
60
125
5.5
3.5
V
V
°C
V
V
Continuous
Continuous
60
40
25
V
A
A
µF
V
A
Turn on at 10V
Fast blow external fuse recommended
60
25
9.5
5.5
4.0
10
5.9
28.0
115
115
210
0.8
10 \ 0.33 \ 40
60
25
-2%*Vout*Iout/Imax
±100mV ±2%*Vout + Load Reg
100
800
500
28.0
100
40 \ 0.33 \ 13
1
Note 1
No isolation guaranteed
Input current max equals output rated current
ESR > 50 mΩ See Note 2
Input voltage dependent
V
V
V
A
mA
mA
mA
mA
µF\µH\µF
V
A
Set by Vset resistor
Between Output pins, over sample, line, load, temp. & life.
mV
mV
mV
A
µF
µF\µH\µF
µA
28 Vin Full Load; 100uF; 20 MHz b.w.
“
“
Effective on input, output condition
ESR > 1 mΩ
(0.1 A/µs); 50%-75%-50% Iout max
To within 1.5% Vout nom.
(0.1 A/µs); 50%-75%-50% Iout max
To within 1.5% Vout nom.
12
12
48
48
1200
400
1600
800
mV
All
All
All
2
3.1
0
ms
V/ms
V
www.synqor.com
Notes & Conditions
us
mV
us
Disabled
Resistive load
“
“
Doc.# 005-0006750 Rev. C
06/15/2016
Page 2
MCOTS-N-28V-60-QT
Output: 0 - 60V
Current: 25A
MCOTS-N-28V-60-QT Electrical Characteristics (continued)
Ta = 25 °C, airflow rate = 300 LFM, Vin = 28 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
Vout
EFFICIENCY
100% Load; 24 Vin
100% Load; 48 Vin
100% Load; 12 Vin
50% Load; 24 Vin
50% Load; 48 Vin
50% Load; 12 Vin
FEATURE CHARACTERISTICS
Switching Frequency
On/Off, Negative (N) Logic
Off-State Threshold Voltage
On-State Threshold Voltage
Threshold Hysteresis
Pin Pull-Up Voltage
Pin Pull-Up Resistance
Min.
12
24
48
12
24
48
All
Typ.
Max.
94
96
92
95
96
93
240
Units
%
%
%
%
%
%
250
260
KHz
1.4
1.1
0.3
3.3
10
1.5
V
V
V
V
kΩ
See REMOTE ON/OFF: in CONTROL FEATURES
All
All
All
All
All
1.0
See OUTPUT VOLTAGE SETPOINT: in CONTROL
FEATURES
Output Voltage Setpoint
Pin Pull-Up Voltage
Pin Pull-Up Resistance
Output Voltage Setpoint Range
All
All
All
Output Over-Voltage Shutdown
All
2.5
10.9
0
60
65
V
kΩ
V
V
Fixed - Does not vary with output
setpoint
See OUTPUT CURRENT SETPOINT: in CONTROL
FEATURES
Output Current Setpoint
Pin Pull-Up Voltage
Pin Pull-Up Resistance
Output Current Setpoint Range
Input/Output Current Limit
Ishare/Imon
Pin Voltage at No Load
Pin Voltage at Full Load (Imax)
Pin Output Resistance
Over-Temperature Shutdown
Over-Temperature Shutdown Restart Hysteresis
RELIABILITY CHARACTERISTICS
Calculated MTBF (TR-NWT-000332; Telcordia)
Calculated MTBF (MIL-HDBK-217F; MIL-217)
Field Demonstrated MTBF
TEMP LIMITS FOR POWER DERATING
Semiconductor Junction Temperature
Board Temperature
Baseplate Temperature
Note 1: All control signals are referenced to Vout- pin.
Note 2: Input capacitance and ESR of input capacitance
Product # MCOTS-N-28V-60-QT
Notes & Conditions
Phone 1-888-567-9596
All
All
All
All
2.5
10
0
26
28
25
30
V
kΩ
A
A
See OUTPUT CURRENT SHARE: in CONTROL FEATURES
All
All
All
All
All
0.2
2.2
2.5
115
15
All
All
All
3.0
2.9
All
All
All
V
V
kΩ
°C
°C
Average PCB Temperature
106 Hrs. 70 °C Tbaseplate
106 Hrs. 70 °C Tbaseplate
106 Hrs. See our website for details
125
125
100
°C
°C
°C
Package rated to 150 °C
UL rated max operating temp 130 °C
dictated by input stability requirements.
www.synqor.com
Doc.# 005-0006750 Rev. C
06/15/2016
Page 3
MCOTS-N-28V-60-QT
Output: 0 - 60V
Current: 25A
Technical Charts
30
100
25
20
Pdiss. (W)
Efficiency (%)
95
90
48Vin 24Vout
10
24Vin 12Vout
85
15
48Vin 24Vout
24Vin 12Vout
48Vin 12Vout
24Vin 48Vout
12Vin 24Vout
12Vin 48Vout
48Vin 12Vout
24Vin 48Vout
5
12Vin 24Vout
12Vin 48Vout
80
0
5
10
15
20
25
0
0
5
10
Load Current (A)
Figure 1: Efficiency at different output voltages vs. load current for different
input voltages at 25°C.
Derated Output Current (A)
25
Tb=100 C;
Vout=12 V
15
iC
Tb=100 C;
Vout=24 V
Tb=80 C;
Vout=48 V
5
50
MCOTS
DC-DC
Converter
VOUT
VSOURCE
Tb=100 C;
Vout=48 V
30
40
Input Voltage (V)
Output
Voltage
Ripple
Input
Terminal
Ripple
Current
iS
Tb=80 C;
Vout=24 V
10
20
25
source
impedance
Tb=80 C;
Vout=12 V
20
10
20
Figure 2: Power dissipation at different output voltages vs. load current for
different input voltages at 25°C.
Input
Reflected
Ripple
Current
30
0
15
Load Current (A)
60
electrolytic
capacitor
tantalum
capacitor
Figure 3: Maximum output power derating curve with a controlled baseplate
temperature of 80°C and 100°C vs. Input voltage.
Figure 4: Test set-up diagram showing measurement points for Input Terminal
Ripple Current (Fig 5) and Output Voltage Ripple (Fig 6).
Figure 5: Input Terminal Ripple Current at 28V input and rated load current
(100mA/div). Load capacitance: 100uF electrolytic cap. Bandwidth: 20MHz,
(5uS/div). See Figure 4
Figure 6: Output Voltage Ripple at 28V input and rated load current (500mV/
div). Load capacitance: 100uF electrolytic cap. Bandwidth: 20MHz, (2uS/div).
See Figure 4.
Product # MCOTS-N-28V-60-QT
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0006750 Rev. C
06/15/2016
Page 4
MCOTS-N-28V-60-QT
Output: 0 - 60V
Current: 25A
Technical Charts
Figure 7: Turn-on transient at 28V input; full load (10ms/div). Top Traces: Vout
(10V/div). Bottom Trace: ON/OFF input (5V/div)
Figure 8: Turn-on transient at 28V input; zero load (5ms/div). Top Traces: Vout
(10V/div). Bottom Trace: ON/OFF input (5V/div)
2.50
Vset voltage (V)
2.00
1.50
1.00
0.50
0.00
0
10
20
30
40
50
60
Output Voltage Setpoint (V)
Figure 9: Vset pin voltage vs. Output Voltage Setpoint.
Figure 10: Output Voltage vs. Vset pin voltage dynamics; 28Vin, 10A out (2mS/
div). Top trace: Vset pin voltage (300mV/div). Bottom trace: Output Voltage (2V/
div).
2.5
Iset Pin Voltage (V)
2.0
1.5
1.0
0.5
0.0
0
5
10
15
20
25
Output Current Setpoint (A)
Figure 11: Iset pin voltage vs. Output Current Limit Setpoint.
Product # MCOTS-N-28V-60-QT
Phone 1-888-567-9596
Figure 12: Characteristics of MCOTS HVNQ Family. MCOTS-N-28V-60-HG
shownOutput Current vs Iset pin voltage dynamics; 28Vin 10Vout (5uS/div). Top
Trace: Output Current (2A/div). Bottom Trace: Iset pin voltage (200mV/div).
www.synqor.com
Doc.# 005-0006750 Rev. C
06/15/2016
Page 5
MCOTS-N-28V-60-QT
Output: 0 - 60V
Current: 25A
Technical Charts
3.0
2.5
Ishare (V)
2.0
1.5
1.0
0.5
0.0
0
5
10
15
20
25
30
Output Current (A)
Figure 13: Ishare/Imon pin Voltage vs. Output Load Current.
Figure 14: Output voltage response for 28V input; 12V, 24V, 48V, 60V output to
step change in load current (50%-75%-50% of Iout max; di/dt=0.1A/uS). Load
cap: 100uF electrolytic cap, Vout (1V/div); (2mS/div)
STANDARDS COMPLIANCE
Parameter
Notes & Conditions
STANDARDS COMPLIANCE
UL 60950-1:2007/A2:2014
EN 60950-1:2006/A2:2013
CAN/CSA-C22.2 No. 60950-1:2007/A2:2014
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-N-28V-60-QT
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0006750 Rev. C
06/15/2016
Page 6
MCOTS-N-28V-60-QT
Output: 0 - 60V
Current: 25A
Application Section
BASIC OPERATION AND FEATURES
This converter consists of integrated buck and boost
converters, both controlled simultaneously by a digital
controller. It automatically changes operating mode (buck
mode or boost) when the line voltage or output set point
changes. Very high efficiency is maintained over wide input
and output ranges by shifting operational modes and use of
synchronous rectifiers.
The converter runs at a fixed frequency with a predictable
EMI performance.
This quarter-brick converter uses the industry standard
footprint and pin-out configuration. A typical V-I
characteristic, with Vsetpoint=50V and Isetpoint=18A,
when operating from Vin=30V, is shown in Figure A.
Vin1+
+Vin
+Vout
On/Off
HVNQ
DC-DC
Converter
-Vout
-Vin
VoutVin2+
+Vin
+Vout
On/Off
On/Off
Vout2+
HVNQ
DC-DC
Converter
-Vout
-Vin
Figure B:
70
Vo=Vmax
Vin=60V
60
Vin=50V
50
Output Voltage (V)
Vout1+
Increase
Vsetpoint
40
Vin=40V
Increasing
Vin
Vin=30V
30
Vin=20V
20
Vin=10V
10
Increase
Isetpoint
0
0
5
10
15
Output Current (A)
20
25
30
OUTPUT VOLTAGE SETPOINT: The output voltage can
be programmed to any voltage between 0 V dc and Vmax
by connecting one resistor between the Vset pin (6) and
Vout- (4); See Figure C. For a desired output voltage, the
value of the resistor should be:
Figure A
Rvset(Vset) =
CONTROL FEATURES
[(
11830 x Vmax
Vset + 0.058 x Vmax
)
-10912
]
(Ω)
REMOTE ON/OFF: Only Negative On/Off logic is available
in the converter series: logic high at the input turns the
converter Off while a logic low turns in On. Timing of this
is shown in Figures 7, 8. A high level can be driven to any
voltage between 1.5V and 3.3V, or simply left floating as the
unit contains an internal 25KΩ pull-up to 5.0V. The pin can
be pulled low (to Vout-) by an optocoupler, an open-source/
drain transistor or wired permanently to Vout-. To provide
noise immunity the input has 0.3V of hysteresis.
Multiple units that have a common Vout- connection can be
controlled by the same On/Off signal, but it is recommended
that a small schottky diode be added to each input as shown
in Figure B.
Product # MCOTS-N-28V-60-QT
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0006750 Rev. C
06/15/2016
Page 7
MCOTS-N-28V-60-QT
Output: 0 - 60V
Current: 25A
1
Vin+
Cin
2
3
+Vout
+Vin
On/Off
HVNQ
DC-DC
Converter
Imon
Vset
Imon
Output
7
-Vout
Vout+
Cout
6
5
Iset
-Vin
8
Rvset
RIset
4
Vout-
Vin-
Figure C
Alternatively, the Vset pin can be driven from an external
voltage source: Undriven, this pin floats at 2.5V which
sets the output to 0V. See Figure 10 for the large scale
dynamics of this input.
Vvset(Vset) = 2.366 – 2.316
(
Vset
Vmax
)
(V)
See Figure 9
where:
Vset = desired output voltage setpoint
Vmax = maximum rated output voltage (60V)
OUTPUT CURRENT SETPOINT: The maximum output
current (effectively the current limit) can be reduced to
any value between 0 and Imax by connecting one resistor
between the Iset pin (5) and Vout- (4); see Figure C. The
value of the resistor should be:
RIset(Iset) =
[(
0.0469 Imax + Iset
1.153 Imax - Iset
)
*10200 -10
]
(Ω)
Alternatively, the Iset pin can be driven from an external
voltage source:
Viset(Iset) =
( 0.0953+2.085 * Iset/Imax )
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 Turn-On 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.
Output Current Shutdown: To provide protection in an
output short condition, the unit is equipped with internal
short circuit protection. When the short-circuit protection
is triggered, the converter shuts down and then waits an
inhibit time (~100ms), after which it tries to turn on again.
If the short condition remains, the current limit circuit will
limit the output current. The unit will return to normal
operation once the fault condition is removed.
Internal Over-Voltage Protection: To fully protect
from excessive output voltage, the unit contains an output
over-voltage shutdown that is fixed at ~110% of Vmax. If
this limit is reached, the converter shuts down and then
waits an inhibit time (~100ms), after which it restsarts.
Over-Temperature Shutdown: Two sensors in the
module monitor the temperature of both the buck and boost
sections. When the temperature at either sensor exceeds
the Over Temperature Shutdown value, the converter is
disabled. It will restart normally when it then cools by the
amount of the Over-Temperature Shutdown Hysteresis.
V
where:
Iset = desired output current setpoint
Imax = maximum rated output current (25A)
Undriven, the Iset pin floats to 2.5V which sets the current
limit at its nominal value of 115%*Imax. See Figure 12 for
the large signal dynamics of this control.
Product # MCOTS-N-28V-60-QT
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0006750 Rev. C
06/15/2016
Page 8
MCOTS-N-28V-60-QT
Output: 0 - 60V
Current: 25A
APPLICATION CONSIDERATIONS
Cin2
Input filtering: These modules should be connected to a
low-impedance source. A highly inductive source can affect
the stability of the module. An input capacitor must be
placed adjacent to the input pins of the module to minimize
input ripple voltage and ensure stability. See SynQor’s
application note titled Input System Stability for guidance
on selecting appropriate input filter elements.
http://www.synqor.com/documents/appnotes/appnt_System_Instability.pdf
Output capacitance: An output capacitor of at least
100uF with an ESR of ~50mOhms is recommended to damp
the resonance of the output filter. More capacitance can be
added to improve dynamic response to load variation; there
is not upper limit on the value of the output capacitance.
Very large output capacitors may slow the converter’s start
up time due to the current required to charge them being
limited by current limit or Isetpoint.
Vin+
+Vin
Cin1
On/Off
+Vout
HVNQ
DC-DC
Converter
-Vin
Vin-,Vout+
Cout
Vset
Rvset
-Vout
Vout-
Figure D: Negative output setup
Note that all control signals are referenced to Vout-.
Current limit: Available current is limited by maximum
output current in buck mode (Vin>Vout), and by maximum
input current in boost mode (Vin<Vout).
for Vin >Vout
Ilimit = 1.12 x Imax (Amps)
for Vin < Vout
where Imax = Maximum rated output current
(
Ilimit = 1.12 x Imax
Vin
Vout
)
(Amps)
Generating Negative output voltage (inversion):
The circuit shown in Figure D can be used to generate a
negative output voltage from a positive input.
Product # MCOTS-N-28V-60-QT
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0006750 Rev. C
06/15/2016
Page 9
MCOTS-N-28V-60-QT
Output: 0 - 60V
Current: 25A
Standard Mechanical Diagram
TOP VIEW
SIDE VIEW
1.536 .020
[39.01 0.5]
.810 [20.57]
.600 [15.24]
.450 [11.43]
.263 .020
[6.7 0.5]
.300 [7.62]
.150 [3.81]
.515 .025
[13.08
0.63]
OVERALL HEIGHT
8 7 6 5 4
2.386
[60.6
.020
0.5]
1.86
[47.2]
2.00
[50.8]
M3 THREADED INSERTS
2 PLACES
SEE NOTES 1 & 2
1
2
3
.468
.183
[4.65
.020 [11.89
0.5]
.020
.010
[0.51 0.25]
BOTTOMSIDE CLEARANCE
.300[7.62]
.020
0.5]
.600[15.24]
NOTES
1) Applied torque per screw should not exceed 6in lb (.7Nm)
2) Screw depth is not to exceed 0.100” (2.54mm) below the surface of
the baseplate
3) Baseplate flatness tolerance is 0.004” (.10mm) TIR for surface
4) Pins 1-3 and 5-7 are 0.040” (1.02mm) dia. with 0.080” (2.03mm) dia.
standoff shoulders
5) Pins 4 and 8 are 0.062” (1.57mm) dia. with .100” (2.54mm) dia.
standoff shoulders
6) Undimensioned components are shown for visual reference only
7) All pins: Material: Copper Alloy, Finish: Matte Tin over Nickel Plate
8) All dimensions in inches[mm]. Tolerances:
X.XXIN +/-0.02 (X.Xmm +/-0.5mm)
X.XXXIN +/-0.010 (X.XXmm +/-0.25mm)
9) Weight: 3.5 oz. (100 g)
10) Workmanship: Meets or exceeds IPC-A-610 Class II
Product # MCOTS-N-28V-60-QT
.145
[3.68]
Phone 1-888-567-9596
www.synqor.com
Pin
1
2
3
4
5
6
7
8
Label
+Vin
On/Off
-Vin
-Vout
Iset
Vset
Imon
+Vout
PIN DESIGNATIONS
Function
Positive Supply Input
Input to enable/disable the converter, TTL
Negative Supply Input, internally connected to Pin 4
Negative Power Output, internally connected to Pin 3
Input to set the maximum output current.
Input to set the maximum output voltage.
Imon
Positive Power Output
Doc.# 005-0006750 Rev. C
06/15/2016
Page 10
MCOTS-N-28V-60-QT
Output: 0 - 60V
Current: 25A
Flanged Mechanical Diagram
2.200 [55.88]
2.000 [50.80]
1.536 [39.01]
PIN EXTENSION
0.180 [4.6]
0.450 [11.4]
0.150 [3.8]
SEATING PLANE HEIGHT
.515 .025
[13.1 0.71]
0.010 [0.25]
4 5 6 7 8
TOP VIEW
2.386
[60.60]
2.000
[50.8]
1.300
[33.02]
0.36
[9.1]
2.066
[52.48]
3
1
0.70
[17.8]
1
FLANGE THICKNESS
0.125 [3.2]
.130 [3.30]
SEE NOTE 1
(6 PLCS)
1) APPLIED TORQUE PER M3 OR 4-40 SCREW SHOULD NOT EXCEED
6in-lb (0.7Nm).
2) BASEPLATE FLATNESS TOLERANCE IS 0.010” (.25mm)
TIR FOR SURFACE.
3) PINS 1-3 and 5-7 ARE 0.040” (1.02mm) DIA. WITH 0.080”
(2.03mm) DIA. STANDOFFS.
4) PINS 4 AND 8 ARE 0.062” (1.57mm) DIA. WITH 0.100” (2.54mm)
DIA STANDOFFS
5) ALL PINS: MATERIAL: COPPER ALLOY
FINISH: MATTE TIN OVER NICKEL PLATE
6) WEIGHT: 3.78 oz. (107 g) TYPICAL
7) ALL DIMENSIONS IN INCHES(mm)
8) TOLERANCES: X.XXIN +/-0.02 (X.Xmm +/-0.5mm)
X.XXXIN +/-0.010 (X.XXmm +/-0.25mm)
Phone 1-888-567-9596
0.300 [7.6]
BOTTOMSIDE CLEARANCE
.010 .010 [0.51 0.25]
NOTES
Product # MCOTS-N-28V-60-QT
2
www.synqor.com
Pin
1
2
3
4
5
6
7
8
0.600 [15.2]
Label
+Vin
On/Off
-Vin
-Vout
Iset
Vset
Imon
+Vout
PIN DESIGNATIONS
Function
Positive Supply Input
Input to enable/disable the converter, TTL
Negative Supply Input, internally connected to Pin 4
Negative Power Output, internally connected to Pin 3
Input to set the maximum output current.
Input to set the maximum output voltage.
Imon
Positive Power Output
Doc.# 005-0006750 Rev. C
06/15/2016
Page 11
MCOTS-N-28V-60-QT
Output: 0 - 60V
Current: 25A
Qualifications & Screening
Mil-COTS Qualification
Test Name
Life Testing
Shock-Vibration
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
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
# Tested
Consistent with
(# Failed) MIL-STD-883F Method
15
Method 1005.8
(0)
5
MIL-STD-202,
(0)
Methods 201A & 213B
8
Method 1004.7
(0)
10
Method 1010.8, Condition A
(0)
15
Method 2003
(0)
7
(0)
2
(0)
Note: A conductive cooling design is generally needed for high altitude applications because of naturally poor convective
cooling at rare atmospheres.
Mil-COTS Converter and Filter Screening
Screening
Baseplate Operating Temperature
Storage Temperature
Pre-Cap Inspection
Temperature Cycling
Burn-In
Final Electrical Test
Final Visual Inspection
MIL-STD-810G Test
Fungus
Method
508.6
Process Description
IPC-A-610, Class III
MIL-STD-883F, Method 1010, Condition B, 10 Cycles
100 ˚C Baseplate
100%
MIL-STD-883F, Method 2009
S-Grade
-55 ˚C to +100 ˚C
-65 ˚C to +135 ˚C
●
12 Hours
25 ˚C
●
M-Grade
-55 ˚C to +100 ˚C
-65 ˚C to +135 ˚C
●
●
96 Hours
-55 ˚C, +25 ˚C, +100 ˚C
●
Mil-COTS MIL-STD-810G Qualification Testing
Description
Table 508.6-I
500.5 - Procedure I
Storage: 70,000 ft / 2 hr duration
500.5 - Procedure II
Operating: 70,000 ft / 2 hr duration; Ambient Temperature
Rapid Decompression
500.5 - Procedure III
Storage: 8,000 ft to 40,000 ft
Acceleration
513.6 - Procedure II
Operating: 15 g
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: -65 °C / 4 hrs
502.5 - Procedure II
Operating: -55 °C / 3 hrs
Temperature Shock
503.5 - Procedure I - C
Storage: -65 °C to 135 °C; 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 (54.6 grms), duration = 1 hr/axis
516.6 - Procedure I
20 g peak, 11 ms, 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, 4 hrs/axis, 20 g (sine sweep from 10 - 500 Hz)
Blowing Dust
510.5 - Procedure II
Blowing Sand
Altitude
High Temperature
Low Temperature
Shock
Sinusoidal vibration
Sand and Dust
Product # MCOTS-N-28V-60-QT
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0006750 Rev. C
06/15/2016
Page 12
MCOTS-N-28V-60-QT
Output: 0 - 60V
Current: 25A
Ordering Information/ Part Numbering
Example: MCOTS-N-28V-60-QT
Not all combinations make valid part numbers, please contact SynQor for availability. See product summary page for details.
Family
Product
MCOTS
N: Non-Isolated
Input Voltage
Output
Voltage
28V: 9-60V
28VE: 9-90V
60:0-60V
90:0-90V
Package
QT:
Quarter Brick
Tera
Screening
Level
Thermal Design
N:Normal Threaded
F:Flanged
S: S-Grade
M: M-Grade
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-N-28V-60-QT
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
www.synqor.com
PATENTS
SynQor holds numerous U.S. patents, one or more of which apply to most of its power conversion
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
6,894,468
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
9,143,042
WARRANTY
SynQor offers a two (2) year limited warranty. Complete warranty information
is listed on our website or is available upon request from SynQor.
Doc.# 005-0006750 Rev. C
06/15/2016
Page 13
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