MCOTS-C-28V-12-QT
Single Output
Quarter-brick
9-40V
Continuous Input
M
ILITARY
COTS DC/DC C
ONVERTER
55V
Transient Input
12V
Output
7A
Output
Full Power Operation: -55°C to +100°C
86% @ 3.5A / 89% @ 7A
Efficiency
ad
pu
va
bl
ic n
at ce
io d
n
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
Mil-COTS
M
D CO
C
28 /D TS-
V C C-
IN CO 28
12 N V-
V VE 12
O R -Q
U TE T
T @ R -
N
-M
7.
0A
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.
Designed and Manufactured in the USA
Safety Features
Operational Features
•
•
•
•
High efficiency, 89% at full rated load current
Operating input voltage range: 9-40 V
Fixed frequency switching provides predictable EMI
No minimum load requirement
• 2250V, 30 MΩ input-to-output isolation
• Certified 60950-1 requirement for basic insulation
(see Standards and Qualifications page)
Protection Features
Mechanical Features
• Industry standard quarter-brick pin-out configuration
• Size:
1.54” x 2.39” x 0.50”
(39.0 x 60.6 x 12.7 mm)
• Total weight: 3.02 oz. (85.7 g)
• Flanged baseplate version available
•
•
•
•
•
Input under-voltage lockout
Output current limit and short circuit protection
Active back bias limit
Output over-voltage protection
Thermal shutdown
Screening/Qualification
Control Features
• On/Off control referenced to input return
• Remote sense for the output voltage
• Output voltage trim range of +10%, -20%
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,
Condition B, 10 cycles
• Burn-In at 100C baseplate temperature
• Final visual inspection per MIL-STD-2008
• Full component traceability
•
•
•
•
Product # MCOTS-C-28V-12-QT
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005666 Rev. 1
06/04/10
Page 1
MCOTS-C-28V-12-QT
Output:
12V
Current:
7.0A
Technical Specification
BLOCK DIAGRAM
REGULATION STAGE
1
POSITIVE
INPUT
CURRENT
SENSE
T1
T2
ISOLATION STAGE
8
T2
POSITIVE
OUTPUT
ad
pu
va
bl
ic n
at ce
io d
n
3
INPUT
RETURN
T1
4
GATE DRIVERS
ISOLATION BARRIER
OUTPUT
RETURN
GATE CONTROL
UVLO
OVSD
CURRENT
LIMIT
2
ON/OFF
PRIMARY
CONTROL
OPTO-ISOLATION
6
SECONDARY
CONTROL
TRIM
7
+ SENSE
5
DATA COUPLING
−
SENSE
TYPICAL CONNECTION DIAGRAM
V
in(+)
V
out(+)
V
in
External
Input
Filter
Electrolytic
Capacitor
V
sense(+)
Trim
_
R
trim-up
ON/OFF
or
V
sense( )
V
out(
_
)
R
trim-down
C
load
I
load
V
in(
_
)
Product # MCOTS-C-28V-12-QT
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005666 Rev. 1
06/04/10
Page 2
MCOTS-C-28V-12-QT
Output:
12V
Current:
7.0A
Technical Specification
MCOTS-C-28V-12-QT ELECTRICAL CHARACTERISTICS
Tb = 25 °C, Vin = 28 Vdc 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.
60
40
55
Units
V
V
V
Notes & Conditions
Continuous
Continuous
1 s transient, square wave
ad
pu
va
bl
ic n
at ce
io d
n
2250
2250
2250
100
135
18
40
V dc
V dc
V dc
°C
°C
V
V
Baseplate temperature
55V transient for 1 s; see Note 3
9.8
8.8
13.9
250
5
TBD
V
V
V
µF
µH\µF
A
mA
mA
V
mA
A
V
Typical ESR 0.1-0.2 Ω
Internal values; see Figure E
Vin min; trim up; in current limit
500V/ms; see Figure 12
RMS
Fast acting external fuse recommended
12.12
±0.3
±0.3
180
12.3
100
20
7
9.1
%
%
mV
V
1500
mV
mV
A
A
V
A
mA
µF
mV
µs
%
%
V
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)
50% to 75% to 50% Iout max
To within 1% Vout nom
Across Pins 8&4; Figure C; see Note 2
Across Pins 8&4
Over full temp range
10
10
15.24
%
See Figure 1 for efficiency curve
%
See Figure 1 for efficiency curve
capacitors. For applications requiring reduced output voltage ripple and
Product # MCOTS-C-28V-12-QT
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005666 Rev. 1
06/04/10
Page 3
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
-55
Storage Temperature
-65
Voltage at ON/OFF input pin
-2
INPUT CHARACTERISTICS
Operating Input Voltage Range
9
28
Input Under-Voltage Lockout
Turn-On Voltage Threshold
9.3
9.5
Turn-Off Voltage Threshold
8.3
8.5
Lockout Voltage Hysteresis
1.0
Recommended External Input Capacitance
100
Input Filter Component Values (L\C)
1.0\6.6
Maximum Input Current
No-Load Input Current
200
Disabled Input Current
3
Response to Input Transient
0.35
Input Terminal Ripple Current
300
Recommended Input Fuse
OUTPUT CHARACTERISTICS
Output Voltage Set Point
11.88
12
Output Voltage Regulation
Over Line
±0.1
Over Load
±0.1
Over Temperature
-180
Total Output Voltage Range
11.7
Output Voltage Ripple and Noise
Peak-to-Peak
0
50
RMS
8.5
Operating Output Current Range
0
Output DC Current-Limit Inception
7.7
8.4
Output DC Current-Limit Shutdown Voltage
5.7
Back-Drive Current Limit while Enabled
0.7
Back-Drive Current Limit while Disabled
1
Maximum Output Capacitance
Output Voltage during Load Current Transient
Step Change in Output Current (0.1 A/µs)
450
Settling Time
100
Output Voltage Trim Range
-20
Output Voltage Remote Sense Range
Output Over-Voltage Protection
14.04
14.64
EFFICIENCY
100% Load
89
50% Load
86
Note 1: Output is terminated with 1 µF ceramic and 15 µF low-ESR tantalum
noise, consult SynQor applications support (e-mail: mqnbofae@synqor.com)
Note 2: Trim-up range is limited below 10% at low line and full load.
Note 3: Start-up guaranteed above 9.8V, but will operate down to 9V.
MCOTS-C-28V-12-QT
Output:
12V
Current:
7.0A
Technical Specification
MCOTS-C-28V-12-QT ELECTRICAL CHARACTERISTICS
Tb = 25 °C, Vin = 28 Vdc 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
ms
ms
%
Notes & Conditions
Full load, Vout=90% nom.
See Figure F
Maximum Output Capacitance
ad
pu
va
bl
ic n
at ce
io d
n
See Absolute Maximum Ratings
See Note 1
MΩ
pF
°C
°C
°C
°C
Package rated to 150 °C
UL rated max operating temp 130 °C
kHz
V
For both input and isolation stage
Application notes Figures A & B
V
kΩ
°C
°C
Average PCB Temperature
10
6
Hrs.
10
6
Hrs.
Ground Benign, 70°C Tb
Ground Mobile, 70°C Tb
DYNAMIC CHARACTERISTICS
Turn-On Transient
Turn-On Time
9
Start-Up Inhibit Time
200
230
250
Output Voltage Overshoot
0
ISOLATION CHARACTERISTICS
Isolation Voltage (dielectric strength)
Isolation Resistance
30
Isolation Capacitance (input to output)
1000
TEMPERATURE LIMITS FOR POWER DERATING CURVES
Semiconductor Junction Temperature
125
Board Temperature
125
Transformer Temperature
125
Maximum Baseplate Temperature, Tb
100
FEATURE CHARACTERISTICS
Switching Frequency
250
270
290
ON/OFF Control
Off-State Voltage
2.4
1.8
On-State Voltage
-2
0.8
ON/OFF Control
Pull-Up Voltage
5
Pull-Up Resistance
50
Over-Temperature Shutdown OTP Trip Point
125
Over-Temperature Shutdown Restart Hysteresis
10
RELIABILITY CHARACTERISTICS
Calculated MTBF per MIL-HDBK-217F
3.4
Calculated MTBF per MIL-HDBK-217F
0.58
Note 1: Higher values of isolation capacitance can be added external to the module.
STANDARDS COMPLIANCE
Parameter
Notes & Conditions
STANDARDS COMPLIANCE
UL 60950-1:2003
Basic Insulation
CAN/CSA-C22.2 No. 60950-1:2003
EN60950-1:2001
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-28V-12-QT
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005666 Rev. 1
06/04/10
Page 4
MCOTS-C-28V-12-QT
Output:
12V
Current:
7.0A
Technical Specification
100
95
90
100
95
90
ad
pu
va
bl
ic n
at ce
io d
n
80
75
70
65
60
80
75
70
65
12 Vin
28 Vin
40 Vin
12 Vin
28 Vin
40 Vin
0
1
2
3
4
Load Current (A)
5
6
7
60
-55ºC
25ºC
100ºC
Case Temperature (ºC)
Figure 1:
Efficiency at nominal output voltage vs. load current for
minimum, nominal, and maximum input voltage at 25
°
C.
15
Efficiency (%)
85
Figure 2:
Efficiency at nominal output voltage and 60% rated power vs.
case temperature for minimum, nominal, and maximum input voltage.
15
Efficiency (%)
85
12
12
Power Dissipation (W)
Power Dissipation (W)
9
9
6
6
3
12 Vin
28 Vin
40 Vin
3
12 Vin
28 Vin
40 Vin
0
0
1
2
3
4
Load Current (A)
5
6
7
0
-55ºC
25ºC
Case Temperature (ºC)
100ºC
Figure 3:
Power dissipation at nominal output voltage vs. load current
for minimum, nominal, and maximum input voltage at T
CASE
=25
°
C.
Figure 4:
Power dissipation at nominal output voltage and 60% rated
power vs. case temperature for minimum, nominal, and maximum input
voltage.
18
15
12
9
6
3
0
8
7
6
5
4
3
2
1
0
Output Voltage (V)
Iout (A)
12 Vin
28 Vin
40 Vin
2
50
60
70
80
90
100
110
Base Plate Temperature (°C)
0
4
6
Load Current (A)
8
10
12
Figure 5:
Maximum output current vs. base plate temperature (nominal input
voltage).
Figure 6:
Output voltage vs. load current showing typical current limit
curves. See Current Limit section in the Application Notes.
Product # MCOTS-C-28V-12-QT
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005666 Rev. 1
06/04/10
Page 5
京公网安备 11010802033920号
EEWORLD
