CMSP & CMSPW Series
50, 66, 75, and 100 Watts
Half Brick, Single Output
Rev. A
DC/DC Converter on a Chassis Mount
FEATURES
● CE Mark
● 100% Burn In
● Isolated and Regulated
● Wide Input Voltage Ranges
● Fixed Operating Switching Frequency
● Short Circuit and Over Voltage Protected
● Input and Output Filtering Integral to Supply
● UL1950, cUL950, TUV EN60950 File E155800
● 50, 66, 75, and 100 Watt Output Rating from Same Package
DESCRIPTION
The CMSP & CMSPW series consists of single output half brick DC/DC converters on a chassis mount that offer up to 100 watts of
output power in an industry standard package and footprint. It is intended to provide power and isolation for pc board and chassis
mount applications requiring high power density. Some features include wide input voltage ranges, positive or negative remote
on/off, remote sense, output trim, short circuit protection, and over voltage protection. Being encapsulated, these supplies have
improved thermal dissipation and protection for ruggedized environments. All models are 100% burned-in.
SPECIFICATIONS: CMSP & CMSPW Series
All specifications apply @ 25°C ambient unless otherwise noted
INPUT SPECIFICATIONS
PROTECTION SPECIFICATIONS
Short Circuit Protection................................................................continuous
Over Voltage Protection ............... Approximately 120% Vout, self-resetting
Current Limiting Inception............................................ Approximately 125%
Thermal Overload......................................+110°C baseplate, self-resetting
Input Voltage Range
CMSP.....................24VDC nominal input........................ 18 - 36 VDC
48VDC nominal input........................ 36 - 75 VDC
CMSPW..................48VDC nominal input........................ 18 - 75 VDC
Input Filter........................................................................................ Pi filter
Input Voltage Lockout ................ <16 >38VDC, <34 > 78VDC (See Note 1)
Input Reflected Ripple...................................................................20mAp-p
GENERAL SPECIFICATIONS
Efficiency ....................................................................................85% typical
Switching Frequency (fixed) ...................................................400kHz ±10%
Remote ON/OFF Control (See Note 5)
Standard........................Active High Enable (Positive Remote ON/OFF)
“R” suffix.......................Active Low Enable (Negative Remote ON/OFF)
Isolation Voltage
Input to Output...................................................................1500VDC min.
Input to Case ...............................................................................750VDC
Output to Case.............................................................................750VDC
OUTPUT SPECIFICATIONS
Output Voltage............................................................................. See table
External Output Trim (minimum)........................................................ ±10%
Voltage Tolerance....................................................................... ±1% max.
Output Current ............................................................................. See table
Output Power............................................................................... See table
Line Regulation................................................................................. ±0.1%
Load Regulation ............................................................................... ±0.1%
Minimum load........................................................................ none required
Ripple/Noise (20MHz BW)..........................................................1.5% Vout
Remote Sense ..................................................Up to 0.5V power line drop
Isolation Resistance (Input to Output) ............................................> 100MΩ
ENVIRONMENTAL SPECIFICATIONS
Operating Temperature ..................................... -40°C to +100°C baseplate
Storage Temperature .........................................................-55°C to +125°C
Humidity (non-condensing)..................................................20% to 95% RH
Temperature Coefficient........................................................ 0.01%/°C max
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
Transient Response..........................................................±5.0% deviation,
100μ/sec recovery to within ±1.0%
Due to advances in technology, specifications subject to change without notice
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
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WALL [ WALL INDUSTRIES,INC. ]
