CMDM Series
15 Watt, Single Output
2:1 Wide Input Voltage Range
Chassis Mount DC/DC Converter
Rev C
FEATURES
● 15 Watts Output Power
APPLICATIONS
● Measurement
● Output Current up to 4A
● Wireless Network
● Telecom/Datacom
● Industry Control System
● Semiconductor Equipment
● High Efficiency up to 88%
● Fixed Switching Frequency
● Six-Sided Continuous Shield
● 2:1 Wide Input Voltage Range
● ISO9001 Certified Manufacturing Facilities
● Call Factory for More Output Power Options
● Compliant to RoHS EU Directive 2002/95/EC
● Options: Positive Logic and Negative Logic Remote ON/OFF
● Chassis Mount Options: Open Frame, U Channel, and Enclosed Types Available
SPECIFICATIONS: CMDM Series
All specifications apply @ 25°C ambient unless otherwise noted
INPUT SPECIFICATIONS
GENERAL SPECIFICATIONS
Input Voltage Range.............12V nominal input ...................... 9 - 18 VDC
24V nominal input .................... 18 - 36 VDC
Efficiency ..................................................................................... see table
Switching Frequency............................................................... 500KHz typ.
Isolation Voltage (Input to Output)........................................1600VDC min.
Isolation Resistance............................................................. 109 ohms min.
Isolation Capacitance...............................................................300pF max.
48V nominal input .................... 36 - 75 VDC
Input Surge Voltage (100ms max) ....... 12V input..........................36 VDC
24V input..........................50 VDC
48V input........................100 VDC
Input Reflected Ripple Current (Note 2).......................................20mAp-p
Start Up Time (nominal Vin and constant resistive load).............20ms typ.
ENVIRONMENTAL SPECIFICATIONS
Operating Temperature............................... -40°C ~ +85°C (with derating)
Storage Temperature.........................................................-55°C ~ +105°C
Maximum Case Temperature............................................................100°C
Relative Humidity.................................................................5% to 95% RH
Remote ON/OFF (Option) (Note 7)
(Positive Logic)...............DC-DC ON............ Open or 3.5V < Vr < 12V
DC-DC OFF ............ Short or 0V < Vr < 1.2V
(Negative Logic) .............DC-DC ON.............. Short or 0V < Vr < 1.2V
DC-DC OFF .......... Open or 3.5V < Vr < 12V
Input Current of Remote Control Pin (nominal Vin)........... -0.5mA ~ +1mA
Remote Off State Input Current (nominal Vin) ..................................20mA
Thermal Impedance (Note 8)
Natural Convection............................................................12°C / Watt
Natural Convection with Heat-Sink ....................................10°C / Watt
OUTPUT SPECIFICATIONS
Thermal Shock................................................................... MIL-STD-810F
Vibration................................10~55Hz, 10G, 30 minutes along X, Y, and Z
MTBF (See Note 1).........................................................2.041 x 106 hours
Output Voltage............................................................................see table
Voltage Accuracy (nominal Vin and full load)......................................±1%
Output Current ............................................................................see table
Output Power...................................................................... 15 watts max.
Line Regulation (LL to HL at FL)......................................................±0.5%
Load Regulation (min load to full load) ............................................±0.5%
Minimum Load (See Note 6) .......................................................see table
Ripple/Noise (20 MHz BW)......................................................... 50mVp-p
Temperature Coefficient.................................................±0.02% / °C max.
Transient Response Recovery Time (25% load step)...................... 250us
PHYSICAL SPECIFICATIONS
Potting material of the DC/DC Converter..........................Epoxy (UL94-V0)
Shielding of the DC/DC Converter.................................................six-sided
Weight ...........................................................................Approximately 6oz
Dimensions..................................................4(L) x 2.2(W) x 0.81(H) inches
SAFETY & EMC
Approvals and Standards..............IEC60950-1, UL60950-1 (See Note 10),
EN60950-1
PROTECTION SPECIFICATIONS
EMI ...........................EN55022 .................................................... Class A
Over Voltage Protection .................3.3V output..................................3.9V
Air ± 8KV
Contact ± 6KV
ESD................... EN61000-4-2……..
…….Perf. Criteria B
(zener diode clamp)
5V output..................................6.2V
12V output...................................15V
15V output...................................18V
Radiated Immunity.....EN61000-4-3 ...................... 10V/m Perf. Criteria A
Fast Transient............EN61000-4-4 ........................±2KV Perf. Criteria B
Surge ........................EN61000-4-5 ........................±1KV Perf. Criteria B
Conducted Immunity ..EN61000-4-6 ....................10 Vrms Perf. Criteria A
Over Load Protection (% of full load at nominal input) ............. 150% max.
Short Circuit Protection. ................................. Hiccup, automatic recovery
Due to advances in technology, specifications subject to change without notice
Wall Industries, Inc. • Tel: 603-778-2300 • Toll Free: 888-597-9255 •
website: www.wallindustries.com • e-mail: sales@wallindustries.com
5/15/2019
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