Product # MCOTS-C-48-28-HZ Phone 1-888-567-9596 www.synqor.com Doc.# 005-0006247 Rev. A 04/22/2016
Page 1
MCOTS-C-48-28-HZ
Single Output
Half-brick
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.
Full Power Operation: -55°C to +100°C
MILITARY COTS DC-DC CONVERTER
Designed and Manufactured in the USA
34-75 V 34-100 V 28 V 21.5 A 95%@10.75 A/94%@21.5 A
Continuous Input Transient Input Output Output Efciency
Protection Features
• Input under-voltage lockout
• Output current limit and short circuit protection
• Active back bias limit
• Auto-recovery output over-voltage protection
• Thermal shutdown
Screening/Qualification
• AS9100 and ISO 9001 certied facility
• Qualied 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 100 °C baseplate temperature
• Final visual inspection per MIL-STD-883, Method 2009
• Full component traceability
Operational Features
•
High efciency, 94% at full rated load current
•
Operating input voltage range: 34-75 V
• Fixed frequency switching provides predictable EMI
• No minimum load requirement
Control Features
• On/Off control referenced to input return
• Remote sense for the output voltage
• Wide output voltage trim range of +10%, -50%
• Optional: Active current share for parallel applications
Safety Features
• 2250V, 30 MΩ input-to-output isolation
• Certied 60950-1 requirement for basic insulation
(see Standards and Qualications page)
Mechanical Features
• Industry standard half-brick pin-out
• Size: 2.49” x 2.39” x 0.51”
(63.1 x 60.6 x 13.0 mm)
• Total weight: 5.2 oz. (146 g)
• Flanged baseplate version available
Specification Compliance
MCOTS series converters (with an MCOTS lter) 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)
MCOTS-C-48-28-HZ-N-M
DC-DC CONVERTER
48 V
IN
28 V
OUT
@ 21.5 A
Technical Specification
Product # MCOTS-C-48-28-HZ Phone 1-888-567-9596 www.synqor.com
Doc.# 005-0006247 Rev. A 04/22/2016
Page 2
MCOTS-C-48-28-HZ
Output:
28 V
Current:
21.5 A
BLOCK DIAGRAM
TYPICAL CONNECTION DIAGRAM
Vin
External
Input
Filter
Trim
Vin(+)
I
load
C
load
Vout(+)
R
trim-up
or
R
trim-down
Vsense(+)
ON/OFF
Vin(
_
) Vout(
_
)
Vsense(
_
)
Electrolytic
Capacitor
SENSE(-)
REGULATION STAGE
9
5
UVLO
SECONDARY
CONTROL
GATE CONTROL
PRIMARY
CONTROL
Vin(+)
IN RTN
ON/OFF
7
8
6
1
4
2
Vout(+)
OUT RTN
TRIM
SENSE(+)
GATE DRIVERS
ISOLATION BARRIER
CURRENT
LIMIT
CURRENT
SENSE
DATA COUPLING
ISOLATION STAGE
3
B
Share (-) (Full Feature Option)
Share (+) (Full Feature Option)
OPTO-ISOLATION