Crane Aerospace & Electronics Power Solutions
MOR Single and Dual DC/DC Converters
28 VOLT INPUT – 120 WATT
FEATURES
• –55° to +125°C operation
• 16 to 40 VDC input
• Fully isolated
• Magnetic feedback
• Fixed frequency 550 kHz typical
• Topology – Single Ended Forward
• Will withstand transients of up to 50 V for
up to 120 msec.
MODELS
VDC OUTPUT
SINGLES
DUALS
3.3
5
• Output trim 60% to 110%
• Input and output side inhibit
• Remote sense
3.3
5
6.3
9.5
12
15
6.3
9.5
12
• Synchronization
15
• Parallel up to 5 units
• Output short circuit protection
3
• Up to 80 W/in , 87% efficiency
DESCRIPTION
(PWM) current mode control design and switches at 550 kHz,
nominal. The converters also provide short circuit protection by
restricting the current to 125% of the full load output current. All
models offer two inhibits, one referenced to input common and one
referenced to output common. A remote sense function is available
on single output models.
With up to 120 watts of output power, the MOR Series™ of DC/DC
converters operates from a standard 28 volt bus and offers a wide
input range of 16 to 40 VDC. Full operation over the military temper-
ature range, –55°C to +125°C, makes the MOR Series an ideal
choice for military, aerospace, space, and other high reliability appli-
cations. In compliance with MIL-STD-704D, the converters will with-
stand transients of up to 50 volts for up to 120 milliseconds. Use
Interpoint’s FME28-461 EMI filter to pass MIL-STD-461C, CE03
requirements.
Using the trim function, the MOR Series can provide any output from
2 to 33 VDC. For example, trimming the two 15 volt outputs of the
15 dual (MOR2815D) to 14 volts, and then stacking the outputs will
provide a 28 volt output.
The MOR Series converters incorporate a single-ended forward
topology which uses a constant frequency Pulse Width Modulator
Crane Aerospace & Electronics, Interpoint Corp.
PO Box 97005 • Redmond WA 98073-9705
425.882.3100 • electronics@craneae.com
www.craneae.com
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