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Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 CMMM Series 2:1 Input Voltage Ranges 18~30 Watt, Single Output Chassis Mount DC/DC Converter Rev A

FEATURES

  • Soft Start
  • Output Trim
  • Single Output
  • 1500VDC Isolation
  • Efficiency up to 89%
  • Remote On/Off Control
  • CSA60950-1 Safety Approval
  • 2:1 Wide Input Voltage Range
  • Complies with EN55022 Class A
  • Call Factory for More Output Power Options
  • Short Circuit, Over Voltage, and Over Temperature Protected
  • Chassis Mount Options: Open Frame, U Channel, and Enclosed Types Available

DESCRIPTION

The CMMM series of chassis mount DC/DC converters offer up to 30 watts of output power. These converters operate over input voltage ranges of 9-18VDC, 18-36VDC, and 36-75VDC. This series also provides regulated single output voltages of 3.3, 5, 12, and 15VDC. Other features include remote on/off control, output trim function, and efficiencies up to 89%. All models are over voltage, over temperature and short circuit protected. The EN55022 Class A conducted noise compliance minimizes design time, cost, and eliminates the need for external filter components. These converters are best suited for data communicat ion equipment, mobile battery driven equipment, distributed power systems, telecommunications equipment, mixed analog/digital subsystems, process/machine control equipment, computer peripheral systems, and industrial robot systems. Chassis mounts come in open frame, U channel, and enclosed types. SPECIFICATIONS: CMMM Series All specifications are based on 25°C, Nominal Input Voltage, and Maximum Output Current unless otherwise noted. We reserve the right to change specifications based on technological advances. SPECIFICATION TEST CONDITIONS Min Nom Max Unit INPUT (Vin) Input Voltage Range 12V nominal input models 9 12 18 VDC 24V nominal input models 18 24 36 VDC 48V nominal input models 36 48 75 VDC Start Voltage 12V nominal input models 8.6 8.8 9 VDC 24V nominal input models 17 17.5 18 VDC 48V nominal input models 34 35 36 VDC Under Voltage Shutdown 12V nominal input models 8.1 8.3 8.5 VDC 24V nominal input models 16 16.5 17 VDC 48V nominal input models 32 33 34 VDC Reverse Polarity Input Current All models 2 A Short Circuit Input Power 4500 mW Input Surge Voltage 12V nominal input models -0.7 25 VDC 24V nominal input models -0.7 50 VDC 48V nominal input models -0.7 100 VDC OUTPUT (Vo) Output Voltage See Table Output Voltage Accuracy ±0.5 ±1.0 % Output Trim ±10 % Load Regulation Io = 10% to 100% ±0.1 ±0.5 % Line Regulation Vin = min. to max. ±0.1 ±0.3 % Output Power 30 W Output Current Range See Table Ripple & Noise (20MHz) 55 80 mVpk-pk Ripple & Noise (20MHz) Over Line, Over Load, and Over Temperature 100 mVpk-pk Ripple & Noise (20MHz) 10 mVrms Transient Recovery Time 25% load step change 150 300 μs Transient Response Deviation ±2 ±4 % REMOTE ON/OFF Supply On 2.5 to 100VDC or Open Circuit Supply Off -1 1 VDC Standby Input Current 2 5 mA Control Input Current (On) Vin – RC = 5.0V 5 μA Control Input Current (Off) Vin – RC = 0V -100 μA Control Common Referenced to negative input PROTECTION Over Power Protection 110 160 % Short Circuit Protection Continuous Over Voltage Protection See Table Over Temperature Protection Case Temperature, automatic 107 112 117 °C

Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 CMMM Series 2:1 Input Voltage Ranges 18~30 Watt, Single Output Chassis Mount DC/DC Converter Rev A SPECIFICATION TEST CONDITIONS Min Nom Max Unit GENERAL Efficiency See Table Switching Frequency 290 330 360 KHz Isolation Voltage Rated 60 seconds 1500 VDC Isolation Voltage Test Flash Test for 1 second 1650 VDC Isolation Resistance 500VDC 1000 MΩ Isolation Capacitance 100KHz, 1V 1200 1500 pF Internal Power Dissipation 5,500 mW ENVIRONMENTAL Operating Temperature (Ambient) -40 +50 °C Operating Temperature (Case) -40 +105 °C Storage Temperature -50 +125 °C Lead Temperature 1.5mm from case for 10 seconds 260 °C Humidity 95 % Cooling Free air convection RFI Six-sided shielding, metal case Temperature Coefficient ±0.01 ±0.02 %/°C MTBF MIL-HDBK-217F @ 25°C, Ground Benign 1000 Khours Conducted EMI EN55022 Class A PHYSICAL Weight Approximately 7oz Dimensions (L x W x H) 4.00 x 2.25 x 0.81 inches Case Material of DC/DC converter Metal with non-conductive baseplate Flammability UL94V-0 MODEL SELECTION TABLE Model Number Input Voltage Output Voltage Output Current Input Current Reflected Ripple Current Efficiency (Typ) Over Voltage Protection Maximum Capacitive Load Min Max No Load Max Load CMMM12S3.3-5500

12 VDC

(9 ~ 18 VDC)

3.3 VDC 400 mA 5500 mA

81% 3.9 VDC 470 μF CMMM12S5-5000 5 VDC 350 mA 5000 mA 2480 mA 84% 6.8 VDC 470 μF CMMM12S12-2500 12 VDC 166 mA 2500 mA 2841 mA 88% 15 VDC 470 μF CMMM12S15-2000 15 VDC 133 mA 2000 mA 2841 mA 88% 18 VDC 470 μF CMMM24S3.3-5500

24 VDC

(18 ~ 36 VDC)

3.3 VDC 300 mA 5500 mA

82% 3.9 VDC 470 μF CMMM24S5-5000 5 VDC 300 mA 5000 mA 1225 mA 85% 6.8 VDC 470 μF CMMM24S12-2500 12 VDC 300 mA 2500 mA 1404 mA 89% 15 VDC 470 μF CMMM24S15-2000 15 VDC 125 mA 2000 mA 1404 mA 89% 18 VDC 470 μF CMMM48S3.3-5500

48 VDC

(36 ~ 75 VDC) 82% 3.9 VDC 470 μF CMMM48S5-5000 5 VDC 300 mA 5000 mA 613 mA 85% 6.8 VDC 470 μF CMMM48S12-2500 12 VDC 300 mA 2500 mA 702 mA 89% 15 VDC 470 μF CMMM48S15-2000 15 VDC 125 mA 2000 mA 702 mA 89% 18 VDC 470 μF NOTES 1. Transient recovery time is measured to within 1% error band for a step change in output load of 75% to 100%. 2. The CMMM series requires a minimum output loading to maintain specified regulations. Operation under no- load conditions will not damage these devices, however they may not meet all listed specifications. 3. Other input and output voltages may be available, please contact factory. 4. Heat-sink is optional, please consult factory for ordering details. 5. Chassis Mount Options: No suffix for open frame, “U” suffix for U Channel, and “E” suffix for Enclosed type. 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 CMMM Series 2:1 Input Voltage Ranges 18~30 Watt, Single Output Chassis Mount DC/DC Converter Rev A BLOCK DIAGRAM INPUT VOLTAGE TRANSIENT RATING Vin ( VDC ) 10uS 150 140 130 120 110 100 100uS 1mS 10mS 100mS 48VDC Input Models 24VDC Input Models 12VDC Input Models DERATING CURVES & EFFICIENCY GRAPHS Efficiency vs Input Voltage (Single Output) Efficiency vs Output Load Input Voltage (V) NomLow High50 100Efficiency (%) Load Current (%) 10060402010 80 100Efficiency (%) Derating Curve without Heatsink Derating Curve with Heatsink Output Power (%) 100 -40 50 60 80 100 1109070 400LFM 200LFM100LFM Natural convection Output Power (%) 100 -40 50 60 80 100 1109070 400LFM 200LFM 100LFM Natural convection Ambient Temperature (°C) Ambient Temperature (°C) Single Output +Vo PWM Isolation Ref.Amp LC Filter+Vin -Vin -Vo On/Off Trim OVP OTP OVP

Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 CMMM Series 2:1 Input Voltage Ranges 18~30 Watt, Single Output Chassis Mount DC/DC Converter Rev A MECHANICAL DRAWINGS Unit: inches [mm] + Vin-VinCNTL-OutTRM+ Out 4.00 [101.6] .81 [20.6] 2.25 [57.2] 3.66 [93.0] 1.13 [28.6] .17 [4.3] LABEL .16 [4.06] 2X MODEL NAME DESIGN & FEATURE CONSIDERATONS

Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 CMMM Series 2:1 Input Voltage Ranges 18~30 Watt, Single Output Chassis Mount DC/DC Converter Rev A Remote On/Off Positive logic remote on/off turns the module on during a logic high voltage on the remote on/off pin, and turns the module off during a logic low. To turn the power module on and off, the user must supply a switch to control the voltage between the on/off terminal and the -Vin terminal. The switch can be an open collector or equivalent. A logic low is -1V to 1.0V. A logic high is 2.5V to 100V. The maximum sink current at the on/off terminal (pin 4) during a logic low is -100μA. The maximum allowable leakage current of the switch at the on/off terminal (pin 4) during a logic high (2.5 to 100V) is 5μA. Output Voltage Trim Output voltage trim allows the user to increase or decrease the output voltage set point of a module. The output voltage can be adjusted by placing an external resistor (R) between the Trim and +Vout or –Vout terminals. By adjusting R, the output voltage can be changed by ±10% of the nominal output voltage. +Out -Out +Vin -Vin Trim Up Enable Trim Trim Down 10K Trim Up/Down A 10K, 1 or 10 turn trimpot is usually specified for continuous trimming. Trim pin may be safely left floating if it is not being used. Connecting the external resistor (Rup) between the Trim and –Vout pins increases the output voltage to set the point as defined in the following equation: Rup = (33 x Vout) - (30 x Vadj) Vadj - Vout Connecting the external resistor (Rdown) between the Trim and +Vout pins decreases the output voltage set poi nt as defined in the following equation: Rdown = (36.667 x Vadj) - (33 x Vout) Vout - Vadj Vout: Nominal Output Voltage Vadj: Adjusted Output Voltage Units VDC / KΩ Over Current Protection To provide protection in a fault (output overload) condition, the unit is equipped with internal current limiting circuitry a nd can endure current limiting for an unlimited duration. At the point of current-limit inception, the unit shifts from voltage control to current control. The unit operates normally once the output current is brought back into its specified range. Over Voltage Protection The output over voltage clamp consists of control circuitry that is dependent on the primary regulation loop that monitors the voltage on the output terminals. The control loop of the clamp has a higher voltage set point than the primary loop. This provides a redundant voltage control that reduces the risk of an output over voltage. The OV P level can be found in the protection specifications. Input Source Impedance

Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 CMMM Series 2:1 Input Voltage Ranges 18~30 Watt, Single Output Chassis Mount DC/DC Converter Rev A The power module should be connected to a low ac-impedance input source. Highly inductive source impedances can affect the stability of the power module. In applications where power is supplied over long lines and output loading is high, it may be necessary to use a capacitor at the input to ensure startup. A capacitor mounted close to the power module helps ensure stability of the unit, it is recommended to use a good quality low Equivalent Series Resistance (ESR < 1.0Ω at 100KHz) capacitor of a 33μF for the 12V input models and a 10μF for the 24V and 48V input models. +Out -Out +Vin -Vin DC / DC Converter LoadDC Power Source Cin Maximum Capacitive Load The CMMM Series has a limitation of maximum connected capacitance at the output. The power module may be operated in current limiting mode during start-up, affecting the ramp-up and the startup time. For optimum performance we recommend 330μF maximum capacitive load for 12V and 15V outputs and 10,000μF capacitive load for 3.3V and 5V outputs. The maximum capacitance can be found in the Output Voltage / Current Rating Chart. TEST CONFIGURATIONS Input Reflected-Ripple Current Test Setup Input reflected-ripple current is measured with an inductor Lin (4.7μH) and Cin (220μF, ESR < 1.0Ω at 100KHz) to simulate source impedance. +Out -Out +Vin -Vin DC / DC Converter Load Battery + Lin+ Cin To Oscilloscope Current Probe Capacitor Cin offsets possible battery impedance. Current ripple is measured at the input terminals of the module. Measurement bandwidth is 0 ~ 500KHz. Peak-to-Peak Output Noise Measurement Test Use a Cout 1.0μF ceramic capacitor. Scope measurement should be made by using a BNC socket; measurement bandwidth is 0 ~ 20MHz. Position the load between 50mm and 75mm from the DC/DC Converter. +Out -Out +Vin -Vin Single Output DC / DC Converter Resistive LoadScope Copper Strip Cout +Out -Out +Vin -Vin Dual Output DC / DC Converter Resistive Load Scope Copper Strip Cout Com. ScopeCout Output Ripple Reduction

Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 CMMM Series 2:1 Input Voltage Ranges 18~30 Watt, Single Output Chassis Mount DC/DC Converter Rev A A good quality low ESR capacitor placed as close as possible across the load will give the best ripple and noise performance. To reduce output ripple, it is recommended to use 4.7μF capacitors at the output. +Out -Out +Vin -Vin Load DC Power Source Cout Single Output DC / DC Converter +Out -Out +Vin -Vin Load DC Power Source CoutCom. Dual Output DC / DC Converter Thermal Considerations Many conditions affect the thermal performance of the power module, such as orientation, airflow over the modul e, and board spacing. To avoid exceeding the maximum temperature rating of the components inside the power module, the case temperature must be kept below 105°C. The derating curves are determined from measurements obtained in an experimental apparatus. DUT Position of air velocity probe and thermocouple 50mm / 2in Air Flow 15mm / 0.6in COMPANY INFORMATION: Wall Industries, Inc. has created custom and modified units for over 50 years. Our in-house research and development engineers will provide a solution that exceeds your performance requirements on t ime and on budget. Our ISO9001-2008 certification is just one example of our commitment to producing a high quality, well documented product for our customers. Our past projects demonstrate our commitment to you, our customer. Wall Industries, Inc. has a reputation for working closely with its customers to ensure each solution meets or exceeds form, fit and function requirements. We will continue to provide ongoing support for your project above and beyond the design and production phases. Give us a call today to discuss your future projects. Contact Wall Industries for further information: Phone: (603)778-2300 Toll Free: (888)587-9255 E-mail: sales@wallindustries.com Web: www.wallindustries.com Address: 5 Watson Brook Rd. Exeter, NH 03833