Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833

02/24/2011

603-778-2300 www.wallindustries.com Fax 603-778-9797

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CMLV Series

Half-Brick

50-150 Watt, Single Output

Chassis Mount DC/DC Converter

Rev D

FEATURES

● Soft Start

● 100% Burn In

● High Reliability

● Remote ON/OFF

● Up to 89% Efficient

● Cost Efficient Solution

● Fast Transient Response

● Fixed Switching Frequency

● Encapsulated for Added Ruggedness

● Short Circuit and Over Current Protected

● Remote Sense Compensation to 10% Vout

DESCRIPTION

The CMLV series consists of high density, low input voltage, isolated converters on a chassis mount with a wide input voltage

range. Low input voltage converters are uncommon in the industry and the CMLV series offers the flexibility of operation with

both 12V and 24V busses. These state-of-the-art converters’ features include fast transient response, short circuit protection,

over current protection, soft start, and many other features that are required for today’s demanding applications.

SPECIFICATIONS: CMLV Series

All specifications apply @ 25°C ambient unless otherwise noted

INPUT SPECIFICATIONS

Input Voltage Range .....................................................10-36VDC

UVLO Turn On at ...................................................... 9.6VDC max

UVLO Turn off at ....................................................... 9.5VDC max

Input Filter ..............................................See Technical Datasheet

No suffix........................................... Open/High=ON, Low=OFF

“R” suffix .......................................... Open/High=OFF, Low=ON

Input Reflected Ripple current..................................... 225mA typ.

Input Surge Voltage ................................. 50VDC max for 100ms

OUTPUT SPECIFICATIONS

Output Voltage ................................................................ see table

Voltage Accuracy ................................................................... ±1%

Output Adjustability .............................................................. ±10%

Output Current ................................................................ see table

Output Power .................................................................. see table

Line Regulation (LL to HL at FL) ......................................... ±0.2%

Load Regulation (20% to 100% load).................................. ±0.2%

Ripple/Noise (20 MHz BW) ................................................... 1.5%

Remote Sense Compensation ............................................... 10%

Transient Response (50% load step) ..................................250ms

PROTECTION SPECIFICATIONS

Current Limit ................................................................... 110-140%

Short Circuit Protection ................................................. Continuous

GENERAL SPECIFICATIONS

Efficiency ............................................................................ To 89%

Switching Frequency ...................................................400KHz typ.

Isolation Voltage

Input to Output ..........................................................1500VDC

Input to Case ..............................................................500VDC

Output to Case............................................................500VDC

Isolation Resistance.......................................................10MΩ min.

ENVIRONMENTAL SPECIFICATIONS

Operating Temperature (case).............................. -40°C ~ +100°C

Storage Temperature............................................. -50°C ~ +125°C

Humidity..............................................................................To 95%

Temperature Coefficient ................................................ ±0.2% / °C

MTBF.................................................................... 2,563,116 hours

PHYSICAL SPECIFICATIONS

Weight ...................................................................... 7.52oz (213g)

Dimensions (L x W x H) ...........................5.70 x 3.40 x 1.34 inches

144.8 x 86.4 x 34 mm

Case Material................................................. thick, aluminum alloy

Due to advances in technology, specifications subject to change without notice

APPLICATIONS

● For use in 12V and 24V Battery Applications

● For use in Intermediate and Distributed

Bus Architectures (IBA)

● Telecommunications Equipment

● Network (LANs/WANs) Equipment

● Next Generation Low Voltage, High

Current Microprocessors and ICs