MRW20 SERIES 20 Watts DC/DC Converter Single and Dual Output Rev A FEATURES • • • • • • Ultra-Wide Input Range Railway Certified No Min. Load Requirement Remote On/Off RoHS & REACH Compliant High Efficiency • Over Current, Over Voltage, and Short Circuit Protection • 2 Pin Specifications Available • Heatsink Available • UL/cUL/IEC/EN 62368-1 (60905-1) Safety Approvals & CE Marking DESCRIPTION Standard Size: 2in x 1in x 0.43in (50.8mm x 25.4mm x 11mm) The MRW20 series of DC/DC converters offers up to 20 watts of output power in an ultra-compact 2” x 1” x 0.43” industry standard package. This series consists of single and dual output models with ultra-wide input range, high efficiency, and no minimum load requirements. Each model in this series is RoHS & REACH compliant, has over current, over voltage, and short circuit protection, and has two pin specifications available as well as optional heatsink. This series has UL/cUL/IEC/EN62368-1 (60950-1) safety approvals and CE marking. MODEL SELECTION TABLE Single Output Models Input Voltage Range Output Voltage Output Current MRW20-24S05 MRW20-24S12 24VDC (9~36VDC) MRW20-24S15 MRW20-24S24 MRW20-48S05 MRW20-48S12 48VDC MRW20-48S15 (18~75VDC) MRW20-48S24 MRW20-110S05 MRW20-110S12 110VDC MRW20-110S15 (40~160VDC) MRW20-110S24 5VDC 12VDC 15VDC 24VDC 5VDC 12VDC 15VDC 24VDC 5VDC 12VDC 15VDC 24VDC 4000mA 1670mA 1330mA 833mA 4000mA 1670mA 1330mA 833mA 4000mA 1670mA 1330mA 833mA Model Number(1) Input Current Ripple & Noise No Load Max Load 958mA 50mVp-p 960mA 100mVp-p 25mA 955mA 100mVp-p 957mA 150mVp-p 479mA 50mVp-p 474mA 100mVp-p 15mA 472mA 100mVp-p 473mA 150mVp-p 216mA 50mVp-p 212mA 100mVp-p 10mA 211mA 100mVp-p 211mA 150mVp-p Maximum Capacitive Load Efficiency Over Voltage Protection 6800µF 1200µF 750µF 300µF 6800µF 1200µF 750µF 300µF 6800µF 1200µF 750µF 300µF 87% 87% 87% 87% 87% 88% 88% 88% 84% 86% 86% 86% 6.2VDC 15VDC 18VDC 30VDC 6.2VDC 15VDC 18VDC 30VDC 6.2VDC 15VDC 18VDC 30VDC Output Power 20W 20W 20W MODEL SELECTION TABLE Dual Output Models Input Voltage Range Output Voltage Output Current MRW20-24D12 24VDC (9~36VDC) MRW20-24D15 MRW20-48D12 48VDC (18~75VDC MRW20-48D15 MRW20-110D12 110VDC MRW20-110D15 (40~160VDC) ±12VDC ±15VDC ±12VDC ±15VDC ±12VDC ±15VDC ±833mA ±667mA ±833mA ±667mA ±833mA ±667mA Model Number(1) 5/8/2017 Input Current Maximum Over Voltage Ripple & Noise Efficiency Capacitive Load(2) Protection No Load Max Load 969mA 100mVp-p 600#µF 86% ±15VDC 25mA 969mA 100mVp-p 380#µF 86% ±18VDC 479mA 100mVp-p 600#µF 87% ±15VDC 15mA 479mA 100mVp-p 380#µF 87% ±18VDC 211mA 100mVp-p 600#µF 86% ±15VDC 10mA 212mA 100mVp-p 380#µF 86% ±18VDC Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-778-9797 website: www.wallindustries.com • e-mail: [email protected] Output Power 20W 20W 20W Page 1 of 9 MRW20 SERIES 20 Watts DC/DC Converter Single and Dual Output Rev A SPECIFICATIONS All specifications are based on 25°C, Nominal Input Voltage, Resistive Load, and Rated Output Current unless otherwise noted. We reserve the right to change specifications based on technological advances. SPECIFICATION TEST CONDITIONS Min Typ Max 9 18 40 24 48 110 36 75 160 9 18 40 Unit INPUT SPECIFICATIONS 24V Input Models 48V Input Models 110V Input Models 24V Input Models Start-Up Threshold Voltage 48V Input Models 110V Input Models 24V Input Models Under Voltage Shutdown 48V Input Models 110V Input Models 24V Input Models Input Surge Voltage (100ms. Max.) 48V Input Models 110V Input Models Input Filter All Models OUTPUT SPECIFICATIONS Output Voltage Voltage Accuracy Line Regulation Vin=Min to Max @Full Load Input Voltage Range Load Regulation Io=0% to 100% Voltage Balance Output Power Output Current Minimum Load Maximum Capacitive Load Dual Outputs, Balanced Loads Ripple & Noise (20MHz BW) Transient Recovery Time(3) Transient Response Deviation Trim Up/Down Range Start-Up Time Temperature Coefficient REMOTE ON/OFF CONTROL Converter On Converter Off Control Input Current (On) Control Input Current (Off) Control Common Standby Input Current PROTECTION Short Circuit Protection Over Load Protection Over Voltage Protection GENERAL SPECIFICATIONS Typ. Efficiency Switching Frequency 5V Model 12V, 15V, ±12V, ±15V Models 24V Model 25% Load Step Change 25% Load Step Change % of Nominal Output Voltage All Models Case Material Base Material Potting Material Insulated Frame Material 5/8/2017 Single Output Dual Output Measured with a 10µF/25V MLCC Measured with a 4.7µF/50V MLCC VDC I/O, Reinforced Isolation Input/Output to Case %Vnom. % % % See Table See Table No Minimum Load Requirement See Table 50 100 mVp-p 150 300 µsec ±3 ±5 % ±10 % 50 mS ±0.02 %/ºC 3.5V~12V or Open Circuit 0V~1.2V or Short Circuit 0.5 -0.5 Referenced to Negative Input 2.5 mA mA Hiccup Mode 0.7Hz typ. 150 See Table % See Table 320 Standard Case, “A” Pinning (-A Suffix) Heatsink (-H Suffix) Dimensions (L x W x H) 50 100 170 Internal Pi Type ±1.0 ±0.2 ±0.5 ±1.0 ±2.0 @Max Load. 500VDC 100KHzm 1V VDC See Table Automatic Recovery Hiccup Isolation Resistance Isolation Capacitance PHYSICAL SPECIFICATIONS Weight Pin Material RFI -0.7 -0.7 -0.7 Nominal Vin Rated for 60 Seconds VDC 7.5 16 37 Vctrl=5.0V Vctrl=0V Isolation Voltage VDC 3000 1500 1000 mA KHz VACrns 1500 MΩ pF 1.43oz (40.5g) 2in x 1in x 0.43in (50.8mm x 25.4mm x 11mm) 2in x 1.22in x 0.71in (50.8mm x 31mm x 18mm) Red Copper, Powder Coating FR4 PCB (flammability to UL 94V-0 rated) Epoxy (flammability to UL 94V-0 rated) Non-Conductive Black Plastic (Flammability to UL 94V-0 rated) Tinned Copper Six-Sided Shielded, Metal Case Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-778-9797 website: www.wallindustries.com • e-mail: [email protected] Page 2 of 9 MRW20 SERIES 20 Watts DC/DC Converter Single and Dual Output Rev A SPECIFICATIONS All specifications are based on 25°C, Nominal Input Voltage, Resistive Load, and Rated Output Current unless otherwise noted. We reserve the right to change specifications based on technological advances. SPECIFICATION TEST CONDITIONS Min Typ Max Unit ENVIRONMENTAL SPECIFICATIONS Min. Operating Temperature(4) Natural Convection, Nominal Vin, Load 100% Inom MRW20-48S12, MRW20-48S15, MRW20-48S24 MRW20-24S05, MRW20-24S12, MRW20-24S215, MRW20-24S24, MRW20-48S05, MRW20-48D12, MRW20-48D15 MRW20-24D12, MRW20-24D15, MRW20-110S12, MRW20-110S15, MRW20-110S24, MRW20-110D12, MRW20-110D15 MRW20-110S05 Storage Temperature Thermal Impedance Case Temperature Operating Humidity Lead Temperature Cooling Test Dry Heat Damp Heat Shock & Vibration Test MTBF (Calculated) SAFETY CHARACTERISTICS Safety Approvals General EMC Specifications EMI EMS 69 Non-Condensing 1.5mm from case for 10Sec MIL-HDBK-217F@25ºC Full Load, Ground Benign Unit 76 -40 ºC 66 73 59 -50 12.1 9.8 9.2 5.4 7.8 4.5 5.2 3.0 Natural Convection without Heatsink Natural Convection with Heatsink 100LFM Convection without Heatsink 100LFM Convection with Heatsink 200LFM Convection without Heatsink 200LFM Convection with Heatsink 400LFM Convection without Heatsink 400LFM Convection without Heatsink Max w/out Max. with Heatsink Heatsink 72 78 68 +125 ºC ºC/W +105 ºC 95 %RH 260 ºC Compliance to IEC/EN60068-2-1 Compliance to IEC/EN60068-2-2 Compliance to IEC/EN60068-2-30 Compliance to IEC/EN61373 665.100 Hours UL/cUL 60950-1 Recognition (UL Certificate), IEC/EN 60950-1 (CB-Report) EN 50155, IEC 60571 UL/cUL 62368-1 Recognition (UL Certificate), IEC/EN 62368-1 (CB Report) Compliance with EN 50121-3-2 Railway Applications Conduction EN55032, EN55022, FCC Part 15 EN55024 ESD EN61000-4-2 Air ±8kV, Contact ±6kV Radiated Immunity EN61000-4-3 10V/3 Fast Transient EN61000-4-4 ±2kV Surge EN61000-4-5 ±2kV Conducted Immunity EN61000-4-6 10Vrms PFMF EN61000-4-8 3A/M Class A A A A A A A NOTES 1. To indicate “A” type pinning, add –A suffix to model number. Ex. MRW20-24S05-A To indicate heatsink, add –H suffix to model number. Ex. MRW20-24S05-H To indicate both “A” type pinning and Heatsink, add –AH to model number. Ex. MRW20-24S05-AH 2. # for each output 3. Transient recovery time is measured to within 1% error band for a step change in output load of 75% to 100%. 4. Natural Convection is about 20LFM but is not equal to still air (0LFM). 5. To meet EN61000-4-4 & EN61000-4-5 an external capacitor across the input pins is required. Suggested Capacitors: 24V Input Models: CHEMI-CON KY Series 390µF/63V 48V Input Models: CHEMI-CON KY Series 330µF/100V 110V Input Models: CHEMI-CON KXJ Series 390µF/200V 6. Other input and output voltages may be available, please contact factory. 7. It is recommended to protect the converter by a slow blow fuse in the input supply line. *Due to advances in technology, specifications subject to change without notice. 5/8/2017 Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-778-9797 website: www.wallindustries.com • e-mail: [email protected] Page 3 of 9 Rev A MRW20 SERIES 20 Watts DC/DC Converter Single and Dual Output DERATING CURVES MRW20-48S12, MRW20-48S15, MRW20-48S24 Derating Curve without Heatsink MRW20-48S12, MRW20-48S15, MRW20-48S24 Derating Curve with Heatsink MRW20-24S05, MRW20-24S12, MRW20-24S15, MRW20-24S24, MRW20-48S05, MRW20-48D12, MRW20-48D15 Derating Curve without Heatsink MRW20-24S05, MRW20-24S12, MRW20-24S15, MRW20-24S24, MRW20-48S05, MRW20-48D12, MRW20-48D15 Derating Curve with Heatsink MRW20-24D12, MRW20-24D15, MRW20-110S12, MRW20-110S15, MRW20-110S24, MRW20-110D12, MRW20-110D15 Derating Curve without Heatsink MRW20-24D12, MRW20-24D15, MRW20-110S12, MRW20-110S15, MRW20-110S24, MRW20-110D12, MRW20-110D15 Derating Curve with Heatsink MRW20-110S05 Derating Curve without Heatsink MRW20-110S05 Derating Curve with Heatsink 5/8/2017 Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-778-9797 website: www.wallindustries.com • e-mail: [email protected] Page 4 of 9 MRW20 SERIES 20 Watts DC/DC Converter Single and Dual Output Rev A MECHANICAL DRAWINGS Standard Package Pin 1 2 3 4 5 6 Pin Connections Single Output Dual Output +Vin +Vin -Vin -Vin Remote On/Off Remote On/Off +Vout +Vout Trim Common -Vout -Vout Notes: All dimensions in mm (inches) Tolerance: X.X±0.75 (X.XX±0.03) X.XX±0.25 (X.XXX±0.01) Pin Diameter Ø 1.0±0.05 (0.04±0.002) “A” Pinning Option (-A Suffix) Pin 1 2 3 4 5 6 Pin Connections Single Output Dual Output +Vin +Vin -Vin -Vin Remote On/Off Remote On/Off +Vout +Vout -Vout Common Trim -Vout Notes: All dimensions in mm (inches) Tolerance: X.X±0.75 (X.XX±0.03) X.XX±0.25 (X.XXX±0.01) Pin diameter Ø 1.0±0.05 (0.04±0.002) 5/8/2017 Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-778-9797 website: www.wallindustries.com • e-mail: [email protected] Page 5 of 9 Rev A Heatsink Option (-H Suffix) MRW20 SERIES 20 Watts DC/DC Converter Single and Dual Output Physical Characteristics Heatsink Material: Aluminum Finish: Black Anodized Coating Weight: 0.32oz (9g) “A” Pinning Option with Heatsink 5/8/2017 Advantages of Heatsink: 1. Improve heat dissipation and increase stability/reliability of DC/DC converter at high operating temperatures. 2. To increase operating temperature of the DC/DC converter, please refer to derating curve. Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-778-9797 website: www.wallindustries.com • e-mail: [email protected] Page 6 of 9 MRW20 SERIES 20 Watts DC/DC Converter Single and Dual Output Rev A EXTERNAL OUTPUT TRIMMING Output can be externally trimmed by using method shown below: 5V Models Trim Down Vout= Rd= 1 Vox0.99 156.81 2 Vox0.98 70.69 3 Vox0.97 41.99 4 Vox0.96 27.64 5 Vox0.95 19.03 6 Vox0.94 13.29 7 Vox0.93 9.18 8 Vox0.92 6.11 9 Vox0.91 3.72 10 Vox0.90 1.80 % Volts KOhms Trim Up Vout= Rd= 1 Vox1.01 119.77 2 Vox1.02 53.70 3 Vox1.03 31.67 4 Vox1.04 20.66 5 Vox1.05 14.05 6 Vox1.06 9.65 7 Vox1.07 6.50 8 Vox1.08 4.14 9 Vox1.09 2.31 10 Vox1.10 0.84 % Volts KOhms Trim Down Vout= Rd= 1 Vox0.99 419.81 2 Vox0.98 187.68 3 Vox0.97 110.30 4 Vox0.96 71.61 5 Vox0.95 48.40 6 Vox0.94 32.93 7 Vox0.93 21.87 8 Vox0.92 13.58 9 Vox0.91 7.13 10 Vox0.90 1.98 % Volts KOhms Trim Up Vout= Rd= 1 Vox1.01 344.74 2 Vox1.02 154.37 3 Vox1.03 90.92 4 Vox1.04 59.19 5 Vox1.05 40.15 6 Vox1.06 27.46 7 Vox1.07 18.39 8 Vox1.08 11.59 9 Vox1.09 6.31 10 Vox1.10 2.07 % Volts KOhms Trim Down Vout= Rd= 1 Vox0.99 602.92 2 Vox0.98 269.91 3 Vox0.97 158.91 4 Vox0.96 103.41 5 Vox0.95 70.10 6 Vox0.94 47.90 7 Vox0.93 32.05 8 Vox0.92 20.15 9 Vox0.91 10.90 10 Vox0.90 3.50 % Volts KOhms Trim Up Vout= Rd= 1 Vox1.01 482.88 2 Vox1.02 215.89 3 Vox1.03 126.89 4 Vox1.04 82.40 5 Vox1.05 55.70 6 Vox1.06 37.90 7 Vox1.07 25.18 8 Vox1.08 15.65 9 Vox1.09 8.23 10 Vox1.10 2.30 % Volts KOhms Trim Down Vout= Rd= 1 Vox0.99 598.97 2 Vox0.98 267.93 3 Vox0.97 157.59 4 Vox0.96 102.42 5 Vox0.95 69.31 6 Vox0.94 47.25 7 Vox0.93 31.48 8 Vox0.92 19.66 9 Vox0.91 10.46 10 Vox0.90 3.11 % Volts KOhms Trim Up Vout= Rd= 1 Vox1.01 486.83 2 Vox1.02 217.87 3 Vox1.03 128.21 4 Vox1.04 83.38 5 Vox1.05 56.49 6 Vox1.06 38.56 7 Vox1.07 25.75 8 Vox1.08 16.14 9 Vox1.09 8.67 10 Vox1.10 2.69 % Volts KOhms 12V Models 15V Models 24V Models 5/8/2017 Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-778-9797 website: www.wallindustries.com • e-mail: [email protected] Page 7 of 9 Rev A MRW20 SERIES 20 Watts DC/DC Converter Single and Dual Output TEST SETUP Peak-to-Peak Output Noise Measurement Test Use a 1µF ceramic capacitor and a 10µF tantalum 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. TECHNICAL NOTES Remote On/Off Positive logic remote on/off turns the module on during a logic high voltage on the remote on/off pin, and 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 0V to 1.2V. A logic high is 3.5V to 12V. The maximum sink current at the on/off terminal (Pin 3) during a logic low is -100µA. Overload Protection To provide hiccup mode protection in a fault (output overload) condition, the unit is equipped with internal current limiting circuitry and can endure overload for an unlimited duration. Overvoltage Protection The output overvoltage clamp consists of control circuitry, which is independent of 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 output overvoltage. The OVP level can be found in data sheet. Input Source Impedance 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. 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 4.7µF for the 24V input devices, a 2.2µF for the 48V devices and a 1µF for the 110V devices. Output Ripple Reduction A good quality low ESR capacitor placed as close as practicable 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. Maximum Capacitive Load This series has 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. The maximum capacitance can be found in the data sheet. Thermal Considerations Many conditions affect the thermal performance of the power module, such as orientation, airflow over the module, and board spacing. To avoid exceeding the maximum temperature rating of the components inside the power module, the case temperature must be kept below 105ºC. The derating curves are determined from the measurements obtained in a test setup. 5/8/2017 Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-778-9797 website: www.wallindustries.com • e-mail: [email protected] Page 8 of 9 MRW20 SERIES 20 Watts DC/DC Converter Single and Dual Output Rev A MODEL NUMBER SETUP MRW 20 Series Name Output Power - 24 S 05 Input Voltage Output Quantity Ouptut Voltage 24: 9~36VDC S: Single 05: 5VDC 48: 18~75VDC 12: 12VDC 110: 40~160VDC 15: 15VDC - A H Pinning Option Heatsink A: A Pinning H: Heatsink AH: A Pinning w/ Heatsink 24: 24VDC D: Dual 12: ±12VDC 15: ±15VDC 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-time 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: Toll Free: Fax: E-mail: Web: Address: 5/8/2017 (603)778-2300 (888)597-9255 (603)778-9797 [email protected] www.wallindustries.com 37 Industrial Drive Exeter, NH 03833 Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-778-9797 website: www.wallindustries.com • e-mail: [email protected] Page 9 of 9