NMD Series Isolated 1W Twin Output DC/DC Converters SELECTION GUIDE Order Code FEATURES RoHS compliant Twin independent outputs Input/output isolation 1kVDC Output/output isolation 1kVDC Power sharing on outputs Efficiency to 80% Power density 0.85W/cm3 UL 94V-0 package material Footprint from 1.17cm2 5V & 12V input One 5V output (V1) 3.3V, 5V, 9V, 12V and 15V output (V2) No heatsink required NMD050503DC NMD050505DC NMD050509DC NMD050512DC NMD050515DC NMD050503SC NMD050505SC NMD050509SC NMD050512SC NMD050515SC NMD120505DC NMD120509DC NMD120512DC NMD120515DC NMD120505SC NMD120509SC NMD120512SC NMD120515SC Nominal Input Voltage V 5 5 5 5 5 5 5 5 5 5 12 12 12 12 12 12 12 12 No external components required MTTF up to 1.6 million hours Custom solutions available V V mA mA % kHrs 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 3.3 5 9 12 15 3.3 5 9 12 15 5 9 12 15 5 9 12 15 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 152 100 56 42 34 152 100 56 42 34 100 56 42 34 100 56 42 34 70 70 80 80 80 70 70 80 80 80 70 80 80 80 70 80 80 80 1615 1615 669 339 187 1615 1615 669 339 187 489 343 229 148 489 343 229 148 Package Style DIP SIP DIP SIP INPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Voltage range Continuous operation, 5V input types Continuous operation, 12V input types 4.5 10.8 5.0 12 5.5 13.2 V Min. Typ. Max. Units 1.0 W 1.2 15 15 10 10 10 75 %/% OUTPUT CHARACTERISTICS Parameter Conditions Rated power2 Voltage set point accuracy Line regulation TA=0°C to 125°C See tolerance envelope High VIN to low VIN 10% load to rated load, 3.3V output types 10% load to rated load, 5V output types 10% load to rated load, 9V output types 10% load to rated load, 12V output types 10% load to rated load, 15V output types BW=DC to 20MHz, all output types PCB mounting Load regulation DESCRIPTION The NMD series of DC/DC converters are ideally suited to applications where a potential difference exists between loads, e.g. motor control circuits. The twin outputs offer cost and space savings by consolidating two DC/DC converters into one package. All of the rated power may be drawn from a single output provided the total load does not exceed 1 watt. MTTF1 When operated with additional external load capacitance the rise time of the input voltage will determine the maximum external capacitance value for guaranteed start up. The slower the rise time of the input voltage the greater the maximum value of the additional external capacitance for reliable start up. Internal SMD construction Fully encapsulated with toroidal magnetics Output Output Output Output Efficiency Voltage 1 Voltage 2 Current 1 Current 2 Ripple and noise 1.0 % mV p-p ABSOLUTE MAXIMUM RATINGS Short-circuit protection3 Lead temperature 1.5mm from case for 10 seconds Input voltage VIN, NMD05 types Input voltage VIN, NMD12 types 1 second 300°C 7V 15V 1. Calculated using MIL-HDBK-217F with nominal input voltage at full load. 2. See derating curve. 3. Supply voltage must be disconnected at the end of the short circuit duration. All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified. For full details go to www.murata-ps.com/rohs www.murata-ps.com Technical enquiries - email: [email protected], tel: +44 (0)1908 615232 KDC_NMDC.D02 Page 1 of 4 NMD Series Isolated 1W Twin Output DC/DC Converters ISOLATION CHARACTERISTICS Parameter Conditions Min. Isolation test voltage Resistance Flash tested for 1 second Viso= 500VDC 1000 1 Parameter Conditions Min. Switching frequency All input types Typ. Max. Units VDC GΩ GENERAL CHARACTERISTICS Typ. Max. 100 Units kHz TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Specification Storage Cooling All output types 0 -55 Typ. Max. Units 70 150 ºC Free air convection TOLERANCE ENVELOPE +10% +5% VNOM 70°C 1.0 0.5 Safe Operating Area 125ºC 0 0 50 100 Ambient Temperature (ºC) 150 Output Voltage Output Power (W) TEMPERATURE DERATING GRAPH 1.5 Typical L oad Line +2.5% -2.5% -7.5% 10 75 50 25 Output Load Current (%) 100 TECHNICAL NOTES ISOLATION VOLTAGE ‘Hi Pot Test’, ‘Flash Tested’, ‘Withstand Voltage’, ‘Proof Voltage’, ‘Dielectric Withstand Voltage’ & ‘Isolation Test Voltage’ are all terms that relate to the same thing, a test voltage, applied for a specified time, across a component designed to provide electrical isolation, to verify the integrity of that isolation. Murata Power Solutions NMD series of DC/DC converters are all 100% production tested at their stated isolation voltage. This is 1kVDC for 1 second. A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?” For a part holding no specific agency approvals, such as the NMD series, both input and output should normally be maintained within SELV limits i.e. less than 42.4V peak, or 60VDC. The isolation test voltage represents a measure of immunity to transient voltages and the part should never be used as an element of a safety isolation system. The part could be expected to function correctly with several hundred volts offset applied continuously across the isolation barrier; but then the circuitry on both sides of the barrier must be regarded as operating at an unsafe voltage and further isolation/insulation systems must form a barrier between these circuits and any user-accessible circuitry according to safety standard requirements. REPEATED HIGH-VOLTAGE ISOLATION TESTING It is well known that repeated high-voltage isolation testing of a barrier component can actually degrade isolation capability, to a lesser or greater degree depending on materials, construction and environment. The NMD series has toroidal isolation transformers, with no additional insulation between primary and secondary windings of enameled wire. While parts can be expected to withstand several times the stated test voltage, the isolation capability does depend on the wire insulation. Any material, including this enamel (typically polyurethane) is susceptible to eventual chemical degradation when subject to very high applied voltages thus implying that the number of tests should be strictly limited. We therefore strongly advise against repeated high voltage isolation testing, but if it is absolutely required, that the voltage be reduced by 20% from specified test voltage. This consideration equally applies to agency recognized parts rated for better than functional isolation where the wire enamel insulation is always supplemented by a further insulation system of physical spacing or barriers. RoHS COMPLIANCE INFORMATION This series is compatible with RoHS soldering systems with a peak wave solder temperature of 300°C for 10 seconds. The pin termination finish on the SIP package type is Tin Plate, Hot Dipped over Matte Tin with Nickel Preplate. The DIP types are Matte Tin over Nickel Preplate. Both types in this series are backward compatible with Sn/Pb soldering systems. For further information, please visit www.murata-ps.com/rohs www.murata-ps.com Technical enquiries - email: [email protected], tel: +44 (0)1908 615232 KDC_NMDC.D02 Page 2 of 4 NMD Series Isolated 1W Twin Output DC/DC Converters PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS PIN CONNECTIONS - 14 PIN DIP SIP Package DIP Package 0.77 (19.50) 0.77 (19.50) 0.385 (9.80) NMD050505DC XYYWW 0.236 (6.00) 0.268 (6.80) 0.394 (10.00) NMD050515SC XYYWW .181 (4.60) .142 (3.60) 1 0.1 (2.54) 0.022 (0.55) 0.0178 (0.45) 0.043 (1.09) 1 7 14 11 10 9 8 0.3 (7.62) 0.084 (2.13) 0.6 (15.24) 0.181 (4.60) 0.141 (3.60) 0.22 (0.55) 0.0178 (0.45) 0.0118 (0.30) 0.0079 (0.20) 0.0118 (0.30) 0.0079 (0.20) 0.05 (1.25) 0.5 (12.70) All dimensions in inches ±0.01 (mm ±0.25mm). All pins on a 0.1 (2.54) pitch and within ±0.01 (0.25) of true position. www.murata-ps.com -VIN NC -VOUT2 +VOUT2 -VOUT1 +VOUT1 +VIN PIN CONNECTIONS - 7 PIN SIP 0.1 (2.54) 0.079 (2.00) Function 1 7 8 9 10 11 14 0.022 (0.55) 0.0178 (0.45) 4 5 6 7 2 Pin Pin Function 1 2 4 5 6 7 +VIN -VIN +VOUT1 -VOUT1 +VOUT2 -VOUT2 Weight: 2.3g (DIP & SIP) Technical enquiries - email: [email protected], tel: +44 (0)1908 615232 KDC_NMDC.D02 Page 3 of 4 NMD Series Isolated 1W Twin Output DC/DC Converters PACKAGE SPECIFICATIONS (continued) RECOMMENDED FOOTPRINT DETAILS 7 Pin SIP Package 14 Pin DIP Package )0-&4 )0-&4 TUBE OUTLINE DIMENSIONS 7 Pin SIP Tube 14 Pin DIP Tube Unless otherwise stated all dimensions in inches (mm) ±0.5mm. Tube length (14 Pin DIP) : 20.47 (520mm ±2mm). Tube length (7 Pin SIP) : 20.47 (520mm ±2mm). Tube Quantity : 25 USA: Tucson (Az), Tel: (800) 547 2537, email: [email protected] Canada: Toronto, Tel: (866) 740 1232, email: [email protected] Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356 www.murata-ps.com email: [email protected] ISO 9001 REGISTERED Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. © 2008 Murata Power Solutions, Inc. www.murata-ps.com UK: Milton Keynes, Tel: +44 (0)1908 615232, email: [email protected] France: Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: [email protected] Germany: München, Tel: +49 (0)89-544334-0, email: [email protected] Japan: Tokyo, Tel: 3-3779-1031, email: [email protected] Osaka, Tel: 6-6354-2025, email: [email protected] Website: www.murata-ps.jp China: Shanghai, Tel: +86 215 027 3678, email: [email protected] Guangzhou, Tel: +86 208 221 8066, email: [email protected] Technical enquiries - email: [email protected], tel: +44 (0)1908 615232 KDC_NMDC.D02 Page 4 of 4