CMZFW Series
30 Watt Single Output
Rev. B
Chassis Mount DC/DC Converter
4:1 Ultra Wide Input Voltage Range
FEATURES
● Output Current up to 8A
● High Efficiency up to 88%
● Fixed Switching Frequency
● Six-Sided Continuous Shield
● 4:1 Wide Input Voltage Range
● International Safety Standard Approval
● Call Factory for More Output Power Options
● Chassis Mount Options: Open Frame, U Channel, and Enclosed Types Available
SPECIFICATIONS: CMZFW Series
All specifications apply @ 25°C ambient unless otherwise noted
INPUT SPECIFICATIONS
GENERAL SPECIFICATIONS
Efficiency ........................................................................................see table
Switching Frequency .................................................................300KHz typ.
Input Voltage Range .................... 24V nominal input................ 10-40VDC
48V nominal input................ 18-75VDC
Under Voltage Lockout
Isolation Voltage
24VDC input........................... DC-DC ON.................................10VDC
DC-DC OFF...............................16VDC
Input to Output...................................................................1600VDC min.
Input to Case .....................................................................1600VDC min.
Output to Case...................................................................1600VDC min.
48VDC input........................... DC-DC ON.................................18VDC
DC-DC OFF...............................16VDC
Isolation Resistance ...............................................................109 ohms min.
Isolation Capacitance .............................................................. 1000pF max.
ENVIRONMENTAL SPECIFICATIONS
Input Voltage Variation ................ dv/dt................................... 5V/ms max.
(Complies with ETS300 132 part 4.4)
Input Surge Voltage (100ms max) ........... 24V input .......................50VDC
48V input .....................100VDC
Operating Temperature ................................ -40°C to +85°C (with derating)
Storage Temperature ..........................................................-55°C ~ +105°C
Maximum Case Temperature........................................................... +100°C
Relative Humidity (non-condensing) .....................................5% to 95% RH
Temperature Coefficient................................................... ±0.02% / °C max.
Input Reflected Ripple Current (nominal Vin and full load)...........20mAp-p
Start Up Time (nominal Vin and constant resistive load)
Power Up................................................................................10ms typ.
Remote ON/OFF ....................................................................10ms typ.
Remote ON/OFF (See Note 1)
Thermal Impedance (See Note 3)
(Positive Logic)............... DC-DC ON................Open or 3V < Vr < 12V
Natural Convection.............................................................10°C / Watt
DC-DC OFF.............Short or 0V < Vr < 1.2V
Natural Convection with Heat-Sink....................................8.24°C/Watt
Remote Off Input Current (nominal Vin) ..............................................3mA
OUTPUT SPECIFICATIONS
Thermal Shock .................................................................... MIL-STD-810D
Vibration ................................10~55Hz, 10G, 30 minutes along X, Y, and Z
MTBF (See Note 2) .............................................................. 1.315 x 106 hrs
PHYSICAL SPECIFICATIONS
Potting material of the DC/DC Converter ..........................Epoxy (UL94-V0)
Shielding of the DC/DC Converter............................................... six – sided
Weight ............................................................................Approximately 7oz.
Dimensions............................................ 4.00(L) x 2.25(W) x 0.81(H) inches
SAFETY & EMC
Output Voltage..............................................................................see table
Voltage Accuracy (nominal Vin and full load) ...................................... ±1%
Voltage Adjustability........................................................................... ±10%
Output Current ..............................................................................see table
Output Power........................................................................ 30 watts max.
Line Regulation (LL to HL at FL)...................................................... ±0.5%
Load Regulation (10% to 100% FL)................................................. ±0.5%
Minimum Load ...................................................................................... 0%
Approvals and Standards .................. IEC60950-1, UL60950-1, EN60950-1
Conducted Emissions.................EN55022......................................Class A
Radiated Emissions....................EN55022......................................Class A
ESD ............................................EN61000-4-2.....................Perf. Criteria B
Radiated Immunity...................... EN61000-4-3 ....................Perf. Criteria A
Fast Transient............................. EN61000-4-4 ................... Perf. Criteria B
Surge.......................................... EN61000-4-5. ...................Perf. Criteria B
Ripple/Noise (20 MHz BW)...........................................................see table
(measured with a 104pF/50V MLCC)
Transient Response Recovery Time (25% load step change).......... 250us
PROTECTION SPECIFICATIONS
Over Voltage Protection....................................1.5V Output ...............3.9V
Zener diode clamp
1.8V Output ...............3.9V
2.5V Output ...............3.9V
3.3V Output ...............3.9V
5V Output ..................6.2V
12V Output .................15V
15V Output .................18V
Conducted Immunity
EN61000-4-6.....................Perf. Criteria A
Over Load Protection (% of full load at nominal input).............. 150% max.
Short Circuit Protection....................................Hiccup, automatic recovery
Over Temperature Protection .................................................... 115°C typ.
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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