DCMSAU2 SERIES 2 Watt DC/DC Power Converters Rev B Single Output Models FEATURES • Up to 2 Watts Output Power • -40°C to +85°C Operating Temperature • Single & Dual Outputs • SMT Package with Industry Standard Pin-out • 1000VDC I/O Isolation • Qualified for Lead-free Reflow Solder Processes • High Accuracy of Pin Planarity • MTBF > 2,000,000 Hours Size: 0.50 x 0.37 x 0.35 inches (12.7 x 9.3 x 8.9 mm) Dual Output Models Size: 0.60 x 0.37 x 0.35 inches (15.3 x 9.3 x 8.9 mm) According to IPC/JEDEC J-STD-020D • Tape & Reel Packaging Available DESCRIPTION The DCMSAU2 series of DC/DC converters provides 2 Watts of output power in a miniature SMT package. These converters operate over input voltage ranges of 4.5~5.5VDC, 10.8~13.2VDC, and 21.6~26.4VDC. This series also has single and dual output voltages of 5V, 12V, ±5V, ±12V, and ±15VDC. The DCMSAU2 series’ impressive efficiencies enable these modules to deliver their fully rated output power from –40°C to +80°C without a heatsink or forced-air cooling. The very small footprint of these converters makes them an ideal solution for many applications where a voltage has to be isolated such as for noise reduction, ground loop elimination in digital interfaces, or where a converted voltage is required. These converters are also fully qualified for the higher temperature profile used in lead-free reflow solder processes. These converters can also be supplied in tape&reel packaging for use in automated SMD production lines. MODEL SELECTION TABLE SINGLE OUTPUT MODELS Model Number DCMSAU505-2 DCMSAU512-2 DCMSAU1205-2 DCMSAU1212-2 DCMSAU2405-2 DCMSAU2412-2 Input Voltage 5 VDC (4.5 – 5.5 VDC) 12 VDC (10.8 – 13.2 VDC) 24 VDC (21.6 – 26.4 VDC) Output Current Output Voltage Min Max 5 VDC 8mA 400mA Input Current Max No Load Load Load Regulation Output Power Efficiency Maximum Capacitive Load 519mA 11% 2W 77% 47µF 488mA 11% 2W 81% 10µF 213mA 8% 2W 78% 47µF 201mA 6% 2W 82% 10µF 106mA 8% 2W 78% 47µF 101mA 5% 2W 81% 10µF Load Regulation Output Power Efficiency Maximum Capacitive Load 519mA 12% 2W 77% ±10µF 504mA 7% 2W 79% ±4.7µF 501mA 7% 2W 79% ±4.7µF 202mA 5% 2W 82% ±4.7µF 201mA 5% 2W 82% ±4.7µF 102mA 5% 2W 81% ±4.7µF 100mA 5% 2W 82% ±4.7µF 60mA 12 VDC 3mA 165mA 5 VDC 8mA 400mA 30mA 12 VDC 3mA 165mA 5 VDC 8mA 400mA 15mA 12 VDC 3mA 165mA DUAL OUTPUT MODELS Model Number DCMSAU505D-2 DCMSAU512D-2 DCMSAU515D-2 DCMSAU1212D-2 DCMSAU1215D-2 DCMSAU2412D-2 DCMSAU2415D-2 Output Current Output Voltage Min Max ±5 VDC ±4mA ±200mA ±12 VDC ±1.5mA ±83mA ±15 VDC ±1mA ±66mA 12 VDC (10.8 – 13.2 VDC) ±12 VDC ±1.5mA ±83mA ±15 VDC ±1mA ±66mA 24 VDC (21.6 – 26.4 VDC) ±12 VDC ±1.5mA ±83mA Input Voltage 5 VDC (4.5 – 5.5 VDC) Input Current Max No Load Load 60mA 30mA 15mA ±15 VDC ±1mA ±66mA NOTES 1. The DCMSAU2 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. 2. All DC/DC converters should be externally fused at the front end for protection. 3. Other input and output voltages may be available, please contact factory. *Due to advances in technology, specifications are subject to change without notice. 10/23/2013 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 1 of 5 Rev B DCMSAU2 SERIES 2 Watt DC/DC Power Converters SPECIFICATIONS: DCMSAU2 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 10.8 21.6 -0.7 -0.7 -0.7 5 12 24 Max Unit INPUT SPECIFICATIONS Input Voltage Range Input Surge Voltage (1sec, max.) 5VDC nominal input models 12VDC nominal input models 24 VDC nominal input models 5VDC nominal input models 12VDC nominal input models 24 VDC nominal input models Reverse Polarity Input Current Input Current Internal Power Dissipation Input Filter 5VDC nominal input models 12VDC nominal input models 24 VDC nominal input models Input Fuse 5.5 13.2 VDC 26.4 9 18 VDC 30 0.3 A See Table 650 mW Internal capacitor 1000mA slow-blow type 500mA slow-blow type 200mA slow-blow type OUTPUT SPECIFICATIONS Output Voltage Output Voltage Accuracy Output Voltage Balance (Dual Outputs) Line Regulation Load Regulation Output Power Output Current Minimum Load Maximum Capacitive Load Ripple & Noise (20MHz) See Table ±1.5 ±4.0 ±0.1 ±1.0 ±1.2 ±1.5 See Table 2 See Table See Table See Table 100 120 200 15 ±0.01 ±0.02 Balanced loads For Vin change of 1% 20% load to 100% load See Note 1 Over line, over load, and over temperature Temperature Coefficient % % % W mVp-p mVp-p mV rms %/°C PROTECTION Short Circuit Protection 0.5 s GENERAL SPECIFICATIONS Efficiency Switching Frequency Isolation Voltage (I/P to O/P) Isolation Resistance (I/P to O/P) Isolation Capacitance (I/P to O/P) Nominal input voltage and full load 60 seconds 500VDC 100KHz, 1V 50 1000 1000 See Table 100 120 60 KHz VDC MΩ pF 100 ENVIRONMENTAL SPECIFICATIONS Operating Ambient Temperature Case Temperature Storage Temperature Relative Humidity Cooling Lead Temperature Moisture Sensitivity Level (MSL) MTBF See derating curve -40 -50 Non-condensing 1.5mm from case for 10 sec. IPC/JEDEC J-STD-020D MIL-HDBK-217F at 25°C, ground benign +85 +90 +125 95 Free air convection 300 Level 3 2,000,000 hours °C °C °C % RH °C PHYSICAL SPECIFICATIONS Single Output Models Dual Output Models Weight Single Output Models Dimensions (L x W x H) Dual Output Models Case Material 10/23/2013 Flammability to UL 94V-0 rated 0.05oz (1.5g) 0.08oz (2.2g) 0.50 x 0.37 x 0.34 inch (12.7 x 9.3 x 8.65 mm) 0.60 x 0.37 x 0.34 inch (15.3 x 9.3 x 8.65 mm) Molding 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 5 Rev B DCMSAU2 SERIES 2 Watt DC/DC Power Converters DERATING CURVE MECHANICAL DRAWINGS Single Output Models Dual Output Models 10/23/2013 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 5 Rev B DCMSAU2 SERIES 2 Watt DC/DC Power Converters DESIGN CONSIDERATIONS 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 0.33µF 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. TEST SETUP Maximum Capacitive Load The DCMSAU2 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. 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 100 KHz) capacitor of 2.2µF for 5VDC input models, 1.0µF for 12VDC input models, and 0.47µF for 24VDC input models. 10/23/2013 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 5 Rev B DCMSAU2 SERIES 2 Watt DC/DC Power Converters 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 1.5µF capacitors at the output. TEST SETUP 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 90°C. 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: 10/23/2013 (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 603-778-9797 website: www.wallindustries.com • e-mail: [email protected] Page 5 of 5