CMJRW Series Rev. B 10 Watt Single Output Chassis Mount DC/DC Converter 4:1 Ultra Wide Input Voltage Range FEATURES ● High Efficiency up to 86% ● Fixed Switching Frequency ● Six-Sided Continuous Shield UL TUV ● 4:1 Wide Input Voltage Range CB ● International Safety Standard Approval CE MARK ● Call Factory for More Output Power Options ● Options: Add suffix “-I” for Extended Operating Temperature Range ● Chassis Mount Options: Open Frame, U Channel, and Enclosed Types Available SPECIFICATIONS: CMJRW Series All specifications apply @ 25°C ambient unless otherwise noted INPUT SPECIFICATIONS GENERAL SPECIFICATIONS Input Voltage Range ............ 24V nominal input ........................ 9 - 36VDC 48V nominal input ...................... 18 - 75VDC Efficiency ........................................................................................see table Input Surge Voltage (100ms max) ....... 24V input ...........................50VDC 48V input .........................100VDC Input Reflected Ripple Current......................................................30mAp-p (nominal Vin and full load) Switching Frequency .................................................................300KHz typ. Isolation Voltage (Input to Output)......................................... 1600VDC min. 9 Isolation Resistance ...............................................................10 ohms min. Isolation Capacitance ................................................................ 300pF max. Start Up Time (nominal Vin and constant resistive load) .............20ms typ. ENVIRONMENTAL SPECIFICATIONS Remote ON/OFF (Option) (See Note 2) (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 Operating Temperature (See derating curves) Standard ............................................... -25°C ~ +85°C (with derating) “I” (See Note 4) ...................................... -40°C ~ +85°C (with derating) Remote Off Input Current (nominal Vin) ............................................20mA Maximum Case Temperature ............................................................. 100°C OUTPUT SPECIFICATIONS Relative Humidity...................................................................5% to 95% RH Output Voltage ..............................................................................see table Voltage Accuracy (nominal Vin and full load) ...................................... ±1% Thermal Impedance (See Note 5) Natural Convection ............................................................. 12°C / Watt Natural Convection with Heat-Sink..................................... 10°C / Watt Output Current ..............................................................................see table Thermal Shock .................................................................... MIL-STD-810D Output Power ........................................................................ 10 watts max. Vibration ................................10~55Hz, 10G, 30 minutes along X, Y, and Z Line Regulation (LL to HL at FL)....................................................... ±0.2% MTBF (See Note 3) .......................................................... 1.976 x 10 hours Load Regulation (10% - 100 % FL).................................................. ±0.5% PHYSICAL SPECIFICATIONS Minimum Load (See Note 1) ..............................................10% of full load Ripple/Noise (20 MHz BW) ...........................................................50mVp-p Temperature Coefficient ................................................. ±0.02% / °C max. Transient Response Recovery Time (25% load step) .......................250us PROTECTION SPECIFICATIONS Over Voltage Protection................. 3.3V output ..................................3.9V (zener diode clamp) 5V output ....................................6.2V 12V output ....................................15V 15V output ....................................18V Storage Temperature .......................................................... -55°C ~ +105°C 6 Potting material of the DC/DC Converter ..........................Epoxy (UL94-V0) Shielding of the DC/DC Converter.................................................. six-sided Weight .............................................................................Approximately 6oz Dimensions............................................ 4.00(L) x 2.25(W) x 0.81(H) inches SAFETY & EMC Approvals and Standards .................. IEC60950-1, UL60950-1, EN60950-1 Conducted Emissions.........EN55022 .............................................. Class A Over Load Protection (% of full load at nominal input).............. 150% max. Radiated Emissions............EN55022 .............................................. Class A EN55022 .............................................. Class B Short Circuit Protection. ...................................Hiccup, automatic recovery 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 Conducted Immunity...........EN61000-4-6.............................Perf. Criteria A 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 CMJRW Series 10 Watt Single Output Chassis Mount DC/DC Converter 4:1 Ultra Wide Input Voltage Range Rev. B OUTPUT VOLTAGE / CURRENT RATING CHART Model Number Input Range CMJRW24S33-2500 Output Input Current (6) Efficiency (7) Ripple & Noise Capacitor (8) Load max Output Voltage Output Current 3.3 VDC 2500mA 50mVp-p 465mA 78% 6800µF CMJRW24S5-2000 24 VDC 5 VDC 2000mA 50mVp-p 548mA 80% 4700µF CMJRW24S12-830 (9 – 36 VDC) 12 VDC 830mA 50mVp-p 519mA 84% 690µF CMJRW24S15-660 15 VDC 670mA 50mVp-p 544mA 81% 470µF CMJRW48S33-2500 3.3 VDC 2500mA 50mVp-p 239mA 76% 6800µF CMJRW48S5-2000 48 VDC 5 VDC 2000mA 50mVp-p 270mA 81% 4700µF CMJRW48S12-830 (18 – 75 VDC) 12 VDC 830mA 50mVp-p 259mA 84% 690µF 15 VDC 670mA 50mVp-p 262mA 84% 470µF CMJRW48S15-660 NOTES 1. The CMJRW Series requires a minimum 10% loading on the output to maintain specified regulation. Operation under no-load condition will not damage these devices, however, they may not meet all listed specifications. 2. The ON/OFF control pin voltage is referenced to –Vin. To order positive logic On/Off control add the suffix “-P” (Ex: CMJRW24S5-2000-P). To order negative logic On/Off control add the suffix “-R” (Ex: CMJRW24S5-2000-R). 3. BELLCORE TR-NWT-000332. Case 1: 50% Stress, Temperature at 40ºC. (Ground fixed and controlled environment). 4. “I” Version is more efficient; therefore, it can be operated over a more extensive temperature range than the standard version. Please add the suffix “-I” for industrial grade temperature range models. 5. Heat sink is optional, please consult factory for ordering details. 6. Maximum value at nominal input voltage and full load of standard type. 7. Typical value at nominal input voltage and no load. 8. Tested at minimum Vin and constant resistive load. 9. Chassis Mount Options: No suffix for open frame, “U” suffix for U Channel, and “E” suffix for Enclosed type. DERATING CURVE Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 CMJRW Series 10 Watt Single Output Chassis Mount DC/DC Converter 4:1 Ultra Wide Input Voltage Range Rev. B MECHANICAL DRAWING Unit: inches [mm] TRM + Out -Out -Vin CNTL + Vin 4.00 [101.6] MODEL NAME LABEL 2.25 [57.2] .17 [4.3] 1.13 [28.6] 3.66 [93.0] .16 [4.06] 2X Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 .81 [20.6]