NME 5V & 12V Series Isolated 1W Single Output DC/DC Converters SELECTION GUIDE Order Code FEATURES RoHS compliant Single isolated output 1kVDC isolation Efficiency up to 80% Wide temperature performance at full 1 watt load, –40°C to 85°C Power density 1.53W/cm3 UL 94V-0 package material Footprint from 0.69cm2 Industry standard pinout 5V & 12V input 5V, 9V, 12V and 15V output NME0505DC NME0509DC NME0512DC NME0515DC NME0524DC NME0505SC NME0509SC NME0512SC NME0515SC NME0524SC NME1205DC NME1209DC NME1212DC NME1215DC NME1205SC NME1209SC NME1212SC NME1215SC Nominal Input Voltage V V mA Input Current at Rated Load mA 5 9 12 15 24 5 9 12 15 24 5 9 12 15 5 9 12 15 200 111 83 66 42 200 111 83 66 42 200 111 83 66 200 111 83 66 289 260 256 250 248 289 260 256 250 248 120 115 105 110 120 115 110 111 Output Voltage 5 5 5 5 5 5 5 5 5 5 12 12 12 12 12 12 12 12 Output Current Efficiency % Isolation MTTF1 Package Capacitance Style pF kHrs 69 77 78 80 80 69 77 78 80 80 69 74 76 75 69 74 76 75 30 37 33 40 48 30 37 33 40 48 33 48 55 52 33 48 55 52 3415 3078 2205 1532 3415 3078 2205 1532 2493 2311 1780 1313 2493 2311 1780 1313 DIP SIP DIP SIP 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. INPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. No heatsink required Voltage range Internal SMD construction Continuous operation, 5V input types Continuous operation, 12V input types 4.5 10.8 Reflected ripple current 5.0 12.0 26 5.5 13.2 48 mA p-p Fully encapsulated with toroidal magnetics OUTPUT CHARACTERISTICS No external components required Parameter Conditions Typ. Max. Units MTTF up to 3.4 million hours Rated Power2 Voltage Set Point Accuracy Line regulation TA=-40°C to 120°C See tolerance envelope High VIN to low VIN 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 10% load to rated load, 24V output types BW=DC to 20MHz, 5V output types BW=DC to 20MHz, 9V output types BW=DC to 20MHz, 12V output types BW=DC to 20MHz, 15V output types BW=DC to 20MHz, 24V output types 1.0 W 1.2 15 10 9.5 8.5 7.5 110 75 65 55 180 %/% Custom solutions available Pin compatible with LME & NML series PCB mounting Load Regulation2 DESCRIPTION The NME series of DC/DC Converters is particularly suited to isolating and/or converting DC power rails. The galvanic isolation allows the device to be configured to provide an isolated negative rail in systems where only positive rails exist. The wide temperature range guarantees startup from –40°C and full 1 watt output at 85°C. For lower ripple, refer to output ripple reduction section. For full details go to www.murata-ps.com/rohs www.murata-ps.com Ripple and Noise Min. 1.0 14 9 7.5 7.0 5.5 85 60 50 40 140 Units V % mV p-p ABSOLUTE MAXIMUM RATINGS Short-circuit protection3 Lead temperature 1.5mm from case for 10 seconds Internal power dissipation Input voltage VIN, NME05 types Input voltage VIN, NME12 types 1 second 300°C 450mW 7V 15V 1. Calculated using MIL-HDBK-217F FN2 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. Technical enquiries - email: [email protected], tel: +44 (0)1908 615232 KDC_NMEC.E04 Page 1 of 5 NME 5V & 12V Series Isolated 1W Single Output DC/DC Converters ISOLATION CHARACTERISTICS Parameter Conditions Min. Isolation test voltage Resistance Flash tested for 1 second Viso= 1000VDC 1000 Parameter Conditions Min. Switching frequency 5V input types 12V input types Typ. Max. Units VDC GΩ 10 GENERAL CHARACTERISTICS Typ. Max. 110 145 Units kHz TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Specification Storage All output types -40 -50 Case Temperature above ambient Cooling 5V output types All other output types Free air convection TEMPERATURE DERATING GRAPH +5% VNOM 85°C Safe Operating Area 120°C 100 50 0 Ambient Temperature (°C) 150 Output Voltage Output Power (W) Units 85 130 41 32 °C +10% 1.0 0 -40 Max. TOLERANCE ENVELOPE 1.5 0.5 Typ. 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 NME 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 NME 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 NME 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. www.murata-ps.com Technical enquiries - email: [email protected], tel: +44 (0)1908 615232 KDC_NMEC.E04 Page 2 of 5 NME 5V & 12V Series Isolated 1W Single Output DC/DC Converters OUTPUT RIPPLE REDUCTION By using the values of inductance and capacitance stated, the output ripple at the rated load is lowered to 5mV p-p max. Component selection Capacitor: Ceramic chip capacitors are recommended. It is required that the ESR (Equivalent Series Resistance) should be as low as possible, X7R types are recommended. The voltage rating should be at least twice (except for 15V output), the rated output voltage of the DC/DC converter. Inductor: The rated current of the inductor should not be less than that of the output of the DC/DC converter. At the rated current, the DC resistance of the inductor should be such that the voltage drop across the inductor is <2% of the rated voltage of the DC/DC converter. The SRF (Self Resonant Frequency) should be >20MHz. L DC Power Source C Load DC Inductor Order Codes Order Code L (μH) SMD Through Hole C (μF) NME0505XC 47 82473C 22R473C 4.70 NME0509XC 47 82473C 22R473C 1.00 NME0512XC 68 82683C 22R683C 1.00 NME0515XC 100 82104C 22R104C 0.47 NME0524XC 330 82334C 22R334C 1.00 NME1205XC 100 82104C 22R104C 4.70 NME1209XC 47 82473C 22R473C 1.00 NME1212XC 68 82683C 22R683C 0.47 NME1215XC 100 82104C 22R104C 0.47 Product specification for MPS inductors can be found at: 2200R Series (Through Hole) http://www.murata-ps.com/data/magnetics/kmp_2200r.pdf 8200 Series (SMD) http://www.murata-ps.com/data/magnetics/kmp_8200c.pdf www.murata-ps.com Technical enquiries - email: [email protected], tel: +44 (0)1908 615232 KDC_NMEC.E04 Page 3 of 5 NME 5V & 12V Series Isolated 1W Single Output DC/DC Converters PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS PIN CONNECTIONS - 8 PIN DIP DIP Package SIP Package 0.45 (11.48) 0.386 (9.80) NME0505DC 0.236 (6.00) XYYWW Pin Function 1 4 5 7 -VIN +VIN +VOUT -VOUT PIN CONNECTIONS - 4 PIN SIP 0.453 (11.50) 0.267 (6.80) 0.393 (10.0) NME0505SC XYYWW 0.181 (4.60) 0.142 (3.60) 1 0.022 (0.55) 0.018 (0.45) 1 2 3 0.181 (4.60) 0.142 (3.60) 4 Function 1 2 3 4 -VIN +VIN -VOUT +VOUT 4 0.022 (0.55) 0.018 (0.45) 0.074 (1.89) 0.109 (2.77) 0.043 (1.09) 0.022 (0.55) 0.018 (0.45) Pin 0.0118 (0.30) 0.0078 (0.20) 0.3 (7.62) 7 0.049 (1.25) 5 0.0118 (0.30) 0.0078 (0.20) 0.2 (5.08) 0.3 (7.62) 0.3 (7.62) 0.0763 (1.94) 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 Weight: 1.30g (SIP) 1.48g (DIP) Technical enquiries - email: [email protected], tel: +44 (0)1908 615232 KDC_NMEC.E04 Page 4 of 5 NME 5V & 12V Series Isolated 1W Single Output DC/DC Converters PACKAGE SPECIFICATIONS (continued) RECOMMENDED FOOTPRINT DETAILS 8 Pin DIP Package 4 Pin SIP Package )0-&4 )0-&4 TUBE OUTLINE DIMENSIONS 4 Pin SIP Tube 8 Pin DIP Tube Unless otherwise stated all dimensions in inches (mm) ±0.5mm. Tube length (8 Pin DIP) : 20.47 (520mm ±2mm). Tube length (4 Pin SIP) : 20.47 (520mm ±2mm). Tube Quantity : 35 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 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 USA: Mansfield (MA), Tel: (508) 339 3000, email: [email protected] Canada: Toronto, Tel: (866) 740 1232, email: [email protected] 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] China: Shanghai, Tel: +86 215 027 3678, email: [email protected] Guangzhou, Tel: +86 208 221 8066, email: [email protected] www.murata-ps.com email: [email protected] ISO 9001 & ISO 14001 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 Singapore: Parkway Centre, Tel: +65 6348 9096, email: [email protected] Technical enquiries - email: [email protected], tel: +44 (0)1908 615232 KDC_NMEC.E04 Page 5 of 5