DCMRH20 SERIES 20 Watts Medical DC/DC Converter Single and Dual Outputs Rev A FEATURES • • • • • • Wide 2:1 Input Voltage Range Fully Regulated Output Voltage Low Leakage Current No Minimum Load Requirement I/O Isolation of 4200VAC 3 Year Warranty • RoHS & REACH Compliant • Over Load, Over Voltage, and Short Circuit Protection • ANSI/AAMI ES60601-1, CAN/CSA-C22.2 No. 60601-1 and IEC/EN 60601-1 3rd Edition 2xMOPP Safety Standards DESCRIPTION The DCMRH20 series of medical DC/DC converters offers up to 20 watts of output power in a very compact 2” x 1” x 0.47” package. This series consists of fully regulated single and dual output models with a wide 2:1 input voltage range. Each model in this series features low leakage current, no minimum load requirement, I/O isolation of 4200VAC, as well as protection against over load, over voltage, and short circuit conditions. This series is RoHS and REACH compliant and it also has ANSI/AAMI ES60601-1, CAN/CSA-C22.2 No. 60601-1 and IEC/EN 60601-1 3rd edition 2xMOPP safety standards. Size: 2in x 1in x 0.47in (50.8mm x 25.4mm x 12mm) MODEL SELECTION TABLE Single Output Models Model Number DCMRH20-12S05 DCMRH20-12S051 DCMRH20-12S12 DCMRH20-12S15 DCMRH20-12S24 DCMRH20-24S05 DCMRH20-24S051 DCMRH20-24S12 DCMRH20-24S15 DCMRH20-24S24 DCMRH20-48S05 DCMRH20-48S051 DCMRH20-48S12 DCMRH20-48S15 DCMRH20-48S24 Input Voltage Range 12VDC (9~18VDC) 24VDC (18~36VDC) 48VDC (36~75VDC) Output Voltage Output Current 5VDC 5.1VDC 12VDC 15VDC 24VDC 5VDC 5.1VDC 12VDC 15VDC 24VDC 5VDC 5.1VDC 12VDC 15VDC 24VDC 4000mA 4000mA 1670mA 1333mA 840mA 4000mA 4000mA 1670mA 1333mA 840mA 4000mA 4000mA 1670mA 1333mA 840mA Input Current No Load Max. Load 1938mA 1977mA 20mA 1876mA 1893mA 1888mA 947mA 966mA 15mA 938mA 936mA 933mA 473mA 483mA 10mA 469mA 463mA 472mA Ripple & Noise Maximum Capacitive Load Efficiency 50mVp-p 50mVp-p 100mVp-p 100mVp-p 150mVp-p 50mVp-p 50mVp-p 100mVp-p 100mVp-p 150mVp-p 50mVp-p 50mVp-p 100mVp-p 100mVp-p 150mVp-p 6800µF 6800µF 1160µF 750µF 295µF 6800µF 6800µF 1160µF 750µF 295µF 6800µF 6800µF 1160µF 750µF 295µF 86% 86% 89% 88% 89% 88% 88% 89% 89% 90% 88% 88% 89% 90% 89% Ripple & Noise Maximum Capacitive Load(1) Efficiency 100mVp-p 100mVp-p 100mVp-p 100mVp-p 100mVp-p 100mVp-p 590#µF 280#µF 440#µF 280#µF 440#µF 280#µF 88% 89% 90% 90% 89% 90% Output Power 20W 20W 20W MODEL SELECTION TABLE Dual Output Models Model Number DCMRH20-12D12 DCMRH20-12D15 DCMRH20-24D12 DCMRH20-24D15 DCMRH20-48D12 DCMRH20-48D15 12/13/2017 Input Voltage Range Output Voltage Output Current 12VDC (9~18VDC) ±12VDC ±15VDC ±12VDC ±15VDC ±12VDC ±15VDC ±840mA ±670mA ±840mA ±670mA ±840mA ±670mA 24VDC (18~36VDC) 48VDC (36~75VDC) Input Current No Load Max. Load 1888mA 20mA 1880mA 933mA 15mA 931mA 472mA 10mA 465mA 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 6 DCMRH20 SERIES 20 Watts Medical DC/DC Converter Single and Dual Outputs Rev A SPECIFICATIONS All specifications are based on 25°C, Resistive Load, Nominal Input Voltage, 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 36 -0.7 -0.7 -0.7 12 24 48 18 36 75 25 50 100 9 18 36 Unit INPUT SPECIFICATIONS Input Voltage Range Input Surge Voltage Start-up Threshold Voltage Under Voltage Shutdown Input Filter OUTPUT SPECIFICATIONS Output Voltage Voltage Setting Accuracy Line Regulation Load Regulation 12VDC Nominal Input Voltage Models 24VDC Nominal Input Voltage Models 48VDC Nominal Input Voltage Models 12VDC Nominal Input Voltage Models 100ms Max. 24VDC Nominal Input Voltage Models 48VDC Nominal Input Voltage Models 12VDC Nominal Input Voltage Models 24VDC Nominal Input Voltage Models 48VDC Nominal Input Voltage Models 12VDC Nominal Input Voltage Models 24VDC Nominal Input Voltage Models 48VDC Nominal Input Voltage Models Vin=Min. to Max. @Full Load Single Output Dual Output Dual Output, Balanced Loads Io=0% to 100% Voltage Balance Output Power Output Current Minimum Load Maximum Capacitive Load Ripple & Noise Transient Recovery Time(2) Transient Response Deviation(2) Temperature Coefficient Start Up Time (Power On) Reflected Ripple Current 0-20MHz bandwidth, Measured with a MLCC: 4.7µF 25% Load Step Change 25% Load Step Change Nominal Vin and Constant Resistive Load 12VDC Nominal Input Voltage Models 24VDC Nominal Input Voltage Models 48VDC Nominal Input Voltage Models VDC VDC VDC 7.5 15 33 Internal Pi Type VDC See Table ±1.0 %Vnom ±0.5 % ±0.5 % ±1.0 ±2.0 % See Table See table No Minimum Load Requirement See Table See Table 300 µsec ±3 ±5 % ±0.02 %/ºC 30 mS 100 50 mA 30 PROTECTION Short Circuit Protection Over Load Protection Hiccup Mode 0.7Hz typ. Automatic Recovery Hiccup 150 5VDC & 5.1VDC Output Models 6.2 12VDC Output Models 15 15VDC Output Models 18 Over Voltage Protection 24VDC Output Models 27 ±12VDC Output Models ±15 ±15VDC Output Models ±18 ENVIRONMENTAL SPECIFICATIONS DCMRH20-24S24, DCMRH20-24D12, DCMRH20-24D15, -40 66 DCMRH20-48S15, & DCMRH20-48D15 DCMRH20-12S12, DCMRH20-12S24, DCMRH20-12D12, Natural DCMRH20-12D15, DCMRH20-24S12, DCMRH20-24S15, -40 62 Convection, Operating Ambient Temperature DCMRH20-48S12, DCMRH20-48S24, & DCMRH20-48D12 Nominal Vin, Load 100% Inom. DCMRH20-12S15, DCMRH-24S05, DCMRH-24S051, -40 58 DCMRH20-48S05, DCMRH-48S051 DCMRH20-12S05 & DCMRH20-12S051 -40 51 Storage Temperature -50 +125 Case Temperature +95 Thermal Impedance Natural Convection 13.0 Humidity Non-Condensing 95 Altitude 4000 Lead Temperature 1.5mm from case for 10sec. 260 MTBF Calculated, MIL-HDBK-217F, @25ºC, Ground Benign 1,087,344 12/13/2017 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] % VDC ºC ºC ºC ºC/W %RH M ºC Hours Page 2 of 6 DCMRH20 SERIES 20 Watts Medical DC/DC Converter Single and Dual Outputs Rev A SPECIFICATIONS 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 GENERAL SPECIFICATIONS Efficiency Switching Frequency I/O Isolation Voltage Isolation Resistance Isolation Capacitance Leakage Current PHYSICAL SPECIFICATIONS Weight 60 Seconds, Reinforced Isolation, Rated for 300Vrms Working Voltage 500VDC 100KHz, 1V 240VAC, 60Hz Pin Material Cooling(3) SAFETY CHARACTERISTICS EMI EMS Max 4200 10 80 5 Unit KHz VACrms GΩ pF µA 1.06oz (30g) 2in x 1in x 0.47in (50.8mm x 25.4mm x 12mm) Non-Conductive Black Plastic (Flammability to UL 94V-0 rated) Tinned Copper Natural Convection Case Material Safety Approvals (Pending) Typ See Table 285 Dimensions (L x W x H) Safety Standards Min ANSI/AAMI ES60601-1, CAN/CSA-C22.2 No. 60601-1 IEC/EN 60601-1 3rd Edition 2xMOPP ANSI/AAMI ES60601-1 2xMOPP Recognition (UL Certificate) IEC/EN 60601-1 3rd Edition (CB-Report) Conduction & Radiation EN55011, FCC Part 15 EN60601-1-2 4th ESD EN61000-4-2 Air ±15kV, Contact ±8kV Radiated Immunity EN61000-4-3 10V/m Fast Transient(4) EN61000-4-4 ±2kV Surge(4) EN61000-4-5 ±1kV Conducted Immunity EN61000-4-6 10Vrms PFMF EN61000-4-8 30A/M Performance: Class A Performance: A Performance: A Performance: A Performance: A Performance: A Performance: A NOTES 1. # for each output 2. Transient recovery time is measured to within 1% error band for a step change in output load of 75% to 100%. 3. Natural Convection is about 20LFM but is not equal to still air (0 LFM). 4. To meet EN61000-4-4 & EN61000-4-5 an external capacitor across the input pins is required. Suggested capacitor: 330µF/100V. 5. It is recommended to protect the converter by a slow blow fuse in the input supply line. 6. Other inputs and outputs may be available, please contact factory. *Due to advances in technology, specifications subject to change without notice. DERATING CURVES DMRH20-24S24, DCMRH20-24D12, DCMRH20-24D15, DCMRH20-48S15, DCMRH20-48D15 12/13/2017 DCMRH20-12S12, DCMRH20-12S24, DCMRH20-12D12, DCMRH20-12D15, DCMRH20-24S12, DCMRH20-24S15, DCMRH20-48S12, DCMRH20-48S24, DCMRH20-48D12 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 6 DCMRH20 SERIES 20 Watts Medical DC/DC Converter Single and Dual Outputs Rev A DCMRH20-12S15, DCMRH20-24S05, DCMRH20-24S051, DCMRH20-48S05, DCMRH20-48S051 DCMRH20-12S05, DCMRH20-12S051 MECHANICAL DRAWINGS Pin 1 2 3 4 5 Pin Connection Single Output Dual Output +Vin +Vin -Vin -Vin +Vout +Vout No Pin Common -Vout -Vout Note: All dimensions in mm (inch) Tolerance: X.X±0.5 (X.XX±0.02) X.XX±0.25 (X.XXX±0.01) Pin Diameter Ø 1.0 ±0.05 (0.04±0.002) 12/13/2017 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 6 Rev A DCMRH20 SERIES 20 Watts Medical DC/DC Converter Single and Dual Outputs TEST SETUP Input Reflected-Ripple Current Test Setup Input reflected-ripple current is measured with an inductor Lin (4.7µF) and Cin (220µF, ESR<1.0Ω at 100KHz) to simulate source impedance. 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 Use a Cout 4.7µF 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. TECHNICAL NOTES Over Load Protection To provide hiccup mode protection in a fault (output over load) condition, the unit is equipped with internal current limiting circuitry and can endure overload for an unlimited duration. Over Voltage Protection The output over voltage 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 over voltage. The OVP level can be found in the 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 on the input to ensure startup. By using a good quality low Equivalent Series Resistance (ESR < 1.0Ω at 100KHz) capacitor of 10µF for 12V input devices, a 4.7µF for the 24V input devices, and a 2.2µF for the 48V input devices. Capacitor mounted close to the power module helps ensure stability of the unit. 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 ripple, it is recommended to use 4.7µF capacitors at the output. 12/13/2017 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 6 Rev A DCMRH20 SERIES 20 Watts Medical DC/DC Converter Single and Dual Outputs Maximum Capacitive Load The DCMRH20 series has limitation of maximum connected capacitance on the output. The power module may operate in current limiting mode during start-up, affecting the ramp-up and startup time. Connect capacitors at the point of load for best performance. 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 95ºC. the derating curves are determined from measurements obtained in a test setup. 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: 12/13/2017 (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 6 of 6