MOR Single and Dual DC/DC Converters

Crane Aerospace & Electronics Power Solutions

Crane Aerospace & Electronics, Interpoint Corp.

PO Box 97005 • Redmond WA 98073-9705

425.882.3100 • electronics@craneae.com

www.craneae.com

Page 1 of 21

Rev G - 20060418

28 VOLT INPUT – 120 WATT

DESCRIPTION

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.

The MOR Series converters incorporate a single-ended forward

topology which uses a constant frequency Pulse Width Modulator

(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.

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.

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.

• Output trim 60% to 110%

• Input and output side inhibit

• Remote sense

• Synchronization

• Parallel up to 5 units

• Output short circuit protection

MODELS

SINGLES

3.3

5

6.3

9.5

12

15

DUALS

±3.3

±5

±6.3

±9.5

±12

±15