DCMAW1 SERIES 1 Watt DC/DC Power Converters Rev A FEATURES • RoHS Compliant • Compact SIP-6 Package • 1 Watt Output Power • 2:1 Wide Input Voltage Ranges • Fully Regulated Single & Dual • -40°C to +85°C Operating Temperature Range • Continuous Short Circuit Protection Outputs • 1500VDC I/O Isolation • CSA/UL/IEC/EN 60950-1 Safety Approvals (Pending) • High Efficiency up to 80% • Input Filter Complies to EN55022, Class A & FCC, Level A • Low Ripple & Noise DESCRIPTION Size: 0.67 x 0.30 x 0.43 inches 17.0 x 7.62 x 11.0 mm The DCMAW1 series of DC/DC power converters consists of fully regulated single and dual output models with 2:1 wide input voltage ranges of 4.5-9 VDC, 9-18 VDC, 18-36 VDC, and 36-75 VDC. These converters provide 1 Watt of output power in a very small SIP-6 package occupying only 0.2 square inches on the PCB. A high efficiency allows these converters to operate at a wide operating temperature range of -40°C to +85°C without derating. Further features include low ripple & noise, 1500VDC I/O isolation, and short circuit protection. These converters are RoHS compliant and have CSA/UL/IEC/EN 60950-1 safety approvals. These converters’ very compact dimensions make them an ideal solution for many space critical applications in battery powered instrumentations. MODEL SELECTION TABLE SINGLE OUTPUT MODELS Model Number DCMAW1-05S05 DCMAW1-05S12 DCMAW1-05S15 DCMAW1-05S24 DCMAW1-12S05 DCMAW1-12S12 DCMAW1-12S15 DCMAW1-12S24 DCMAW1-24S05 DCMAW1-24S12 DCMAW1-24S15 DCMAW1-24S24 DCMAW1-48S05 DCMAW1-48S12 DCMAW1-48S15 DCMAW1-48S24 Input Voltage 5 VDC (4.5 - 9 VDC) 12 VDC (9 - 18 VDC) 24 VDC (18 - 36 VDC) 48 VDC (36 - 75 VDC) Min Max 5 VDC 12 VDC 15 VDC 24 VDC 5 VDC 12 VDC 15 VDC 0mA 0mA 0mA 0mA 0mA 0mA 0mA 200mA 83mA 67mA 42mA 200mA 83mA 67mA Input Current Max No Load Load 263mA 259mA 40mA 254mA 265mA 108mA 108mA 20mA 105mA 24 VDC 5 VDC 12 VDC 15 VDC 24 VDC 0mA 0mA 0mA 0mA 0mA 42mA 200mA 83mA 67mA 42mA 109mA 54mA 52mA 52mA 55mA 5 VDC 12 VDC 15 VDC 24 VDC 0mA 0mA 0mA 0mA 200mA 83mA 67mA 42mA Output Voltage Output Current 10mA 7mA 27mA 27mA 27mA 28mA Output Power Efficiency 1W 1W 1W 1W 1W 1W 1W 76% 77% 79% 76% 77% 77% 80% Maximum Capacitive Load 1680µF 820µF 680µF 470µF 1680µF 820µF 680µF 1W 1W 1W 1W 1W 77% 77% 80% 80% 77% 470µF 1680µF 820µF 680µF 470µF 20mA 1W 1W 1W 1W 77% 78% 78% 76% 1680µF 820µF 680µF 470µF Reflected Ripple Current Output Power Efficiency Maximum Capacitive Load 1W 77% ±470µF 1W 78% ±330µF 1W 79% ±470µF 1W 78% ±330µF 1W 80% ±470µF 1W 80% ±330µF 1W 79% ±470µF 1W 79% ±330µF Reflected Ripple Current 80mA 40mA 30mA DUAL OUTPUT MODELS ±15 VDC 0mA ±33mA Input Current Max No Load Load 262mA 40mA 254mA 12 VDC (9 - 18 VDC) ±12 VDC 0mA ±42mA 106mA ±15 VDC 0mA ±33mA 24 VDC (18 - 36 VDC) ±12 VDC 0mA ±42mA Model Number Input Voltage DCMAW1-05D12 5 VDC (4.5 - 9 VDC) DCMAW1-05D15 DCMAW1-12D12 DCMAW1-12D15 DCMAW1-24D12 DCMAW1-24D15 DCMAW1-48D12 DCMAW1-48D15 12/06/2013 48 VDC (36 - 75 VDC) Output Voltage ±12 VDC Output Current Min Max 0mA ±42mA ±15 VDC 0mA ±33mA ±12 VDC 0mA ±42mA ±15 VDC 0mA ±33mA 20mA 10mA 7mA 106mA 53mA 52mA 27mA 26mA 80mA 40mA 30mA 20mA Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-7789797 website: www.wallindustries.com • e-mail: [email protected] Page 1 of 6 DCMAW1 SERIES 1 Watt DC/DC Power Converters Rev A SPECIFICATIONS: DCMAW1 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 Typ 4.5 9 18 36 -0.7 -0.7 -0.7 -0.7 5 12 24 48 Max Unit INPUT SPECIFICATIONS Input Voltage Range Input Surge Voltage (1 sec. max.) Start-up Threshold Voltage 5VDC nominal input models 12VDC nominal input models 24VDC nominal input models 48VDC nominal input models 5VDC nominal input models 12VDC nominal input models 24VDC nominal input models 48VDC nominal input models 5VDC nominal input models 12VDC nominal input models 24VDC nominal input models 48VDC nominal input models Input Current Reflected Ripple Current Input Fuse Internal Filter Type OUTPUT SPECIFICATIONS Output Voltage 5VDC nominal input models 12VDC nominal input models 24VDC nominal input models 48VDC nominal input models All models VDC VDC VDC See Table Output Voltage Setting Accuracy At 50% load and nominal Vin Line Regulation Low line to high line No load to full load Load Regulation 10% load to 90% load ±1.0 Single Output Models Dual Output Models Single Output Models Dual Output Models Minimum Load Output Power Output Current Ripple & Noise 20MHz bandwidth Transient Recovery Time 25% load step change Temperature Coefficient PROTECTION Short Circuit Protection GENERAL Efficiency Switching Frequency Isolation Voltage (Input to Output) 60 seconds Isolation Resistance 500VDC Isolation Capacitance 100kHz, 1V Maximum Capacitive Load ENVIRONMENTAL SPECIFICATIONS Operating Temperature Range Natural convection Case Temperature Storage Temperature Humidity Non-condensing Cooling Lead Temperature 1.5mm from case for 10 seconds MTBF (calculated) MIL-HDBK-217F at 25°C, Ground Benign PHYSICAL SPECIFICATIONS Weight Dimensions (L x W x H) Case Material Pin Material SAFETY & EMC Safety Approvals (pending) 9 18 36 75 15 25 50 100 4.5 9 18 36 See Table See Table 500mA slow-blow type 250mA slow-blow type 120mA slow-blow type 60mA slow-blow type capacitor Flammability to UL 94V-0 rated %Vnom . % ±0.2 ±1.0 % ±1.0 ±0.5 % ±0.8 No minimum load requirements 1 W See Table 50 mVp-p 250 µs ±0.02 %/°C Continuous See Table 220 KHz VDC MΩ pF 1500 1000 50 See Table -40 -55 +85 +105 +125 95 natural convection 260 2,800,000 °C °C °C % RH °C hours 0.46oz (12.9g) 0.67 x 0.30 x 0.43 inch (17.0 x 7.62 x 11.0 mm) Non-conductive black plastic Alloy 42 CSA 60950-1 recognition, IEC/EN 60950-1 (CB-scheme) *Due to advances in technology, specifications are subject to change without notice. 12/06/2013 Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-7789797 website: www.wallindustries.com • e-mail: [email protected] Page 2 of 6 Rev A DCMAW1 SERIES 1 Watt DC/DC Power Converters DERATING CURVE MECHANICAL DRAWINGS 12/06/2013 Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-7789797 website: www.wallindustries.com • e-mail: [email protected] Page 3 of 6 Rev A DCMAW1 SERIES 1 Watt DC/DC Power Converters 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 100 KHz) to simulate source impedance. Capacitor Cin offsets possible battery impedance. Current ripple is measured at the input terminals of the module. Measurement bandwidth is 0-500 KHz. Peak-to-Peak Output Noise Measurement Test Use a 0.47µF ceramic capacitor. Scope measurement should be made by using a BNC socket, measurement bandwidth is 020MHz. Position the load between 50mm and 75mm from the DC/DC converter. DESIGN & FEATURE CONSIDERATIONS Maximum Capacitive Load The DCMAW1 series has a limitation of maximum connected capacitance on the output. The power module may be operated in current limiting mode during start-up, affecting the ramp-up and the start-up time. The maximum capacitance can be found in the model selection table. Over Current Protection To provide protection in a fault (output overload) condition, the unit is equipped with internal current limiting circuitry and can endure overload 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. 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. 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 8.2µF for 5VDC nominal input models, a 3.3µF for 12VDC input models, and a 1.5µF for 24VDC and 48VDC input models. 12/06/2013 Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-7789797 website: www.wallindustries.com • e-mail: [email protected] Page 4 of 6 DCMAW1 SERIES 1 Watt DC/DC Power Converters Rev A DESIGN & FEATURE CONSIDERATIONS Output Ripple Reduction 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 3.3µF capacitors at the output. 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 105°C. The derating curves are determined from measurements obtained in a test setup. MODEL NUMBER SETUP DCMAW 1 Series Name Output Power 1: 1 Watt - 12 S 12 Input Voltage No. of Outputs Output Voltage 05: 4.5 – 9 VDC S: Single Output 05: 5 VDC 12: 9 – 18 VDC 12: 12 VDC 24: 18 – 36 VDC 15: 15 VDC 48: 36 – 75 VDC 24: 24 VDC D: Dual Output 12: ±12 VDC 15: ±15 VDC COMPANY INFORMATION 12/06/2013 Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-7789797 website: www.wallindustries.com • e-mail: [email protected] Page 5 of 6 Rev A DCMAW1 SERIES 1 Watt DC/DC Power Converters 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: 12/06/2013 (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 603-7789797 website: www.wallindustries.com • e-mail: [email protected] Page 6 of 6