NML Series www.murata-ps.com Isolated 2W Single Output DC/DC Converters SELECTION GUIDE Nominal Input Output Output Isolation Input Current at Efficiency MTTF1 Order Code Voltage Current Capacitance Voltage Rated Load V V mA mA % pF kHrs NML0505SC 5 5 400 513 78 19 2327 NML0509SC 5 9 222 492 81 27 1393 NML0512SC 5 12 167 479 84 32 832 NML0515SC 5 15 133 481 83 27 481 NML1205SC 12 5 400 207 81 28 716 NML1209SC 12 9 222 198 84 42 593 FEATURES NML1212SC 12 12 167 197 85 46 461 (cid:132)(cid:3)UL 60950 recognised NML1215SC 12 15 133 197 85 54 328 (cid:132)(cid:3)Single isolated output INPUT CHARACTERISTICS (cid:132)(cid:3)1kVDC isolation ‘Hi Pot Test’ Parameter Conditions Min. Typ. Max. Units (cid:132)(cid:3)Efficiency up to 85% Continuous operation, 5V input types 4.5 5.0 5.5 Voltage range V Continuous operation, 12V input types 10.8 12.0 13.2 (cid:132)(cid:3)Wide temperature performance at full 5V input types 33 2 watt load, –40°C to 85°C Reflected ripple current mA p-p 12V input types 38 (cid:132)(cid:3)Industry standard pinout OUTPUT CHARACTERISTICS (cid:132)(cid:3)5V & 12V input Parameter Conditions Min. Typ. Max. Units (cid:132)(cid:3)5V, 9V, 12V and 15V output Rated Power TA=-40°C to 85°C 2.0 W (cid:132)(cid:3)Internal SMD construction Voltage Set Point Accuracy See tolerance envelope Line regulation High VIN to low VIN 1.0 1.2 %/% (cid:132)(cid:3)No external components required 10% load to rated load, 5V output types 7.0 8.5 (cid:132)(cid:3)MTTF up to 2.3 million hours 10% load to rated load, 9V output types 4.5 5.2 Load Regulation2 % 10% load to rated load, 12V output types 4.5 5.5 (cid:132)(cid:3)Custom solutions available 10% load to rated load, 15V output types 3.7 8.5 (cid:132)(cid:3)Pin compatible with CME, CRE1, CRL2, NML0505SC, BW=DC to 20MHz 96 LME, MEE1, NKE & NME series NML0509SC, BW=DC to 20MHz 67 NML0512SC, BW=DC to 20MHz 59 (cid:132)(cid:3)No electrolytic or tantalum capacitors NML0515SC, BW=DC to 20MHz 53 Ripple and Noise 200 mV p-p NML1205SC, BW=DC to 20MHz 76 DESCRIPTION NML1209SC, BW=DC to 20MHz 63 The NML series of DC/DC Converters is particularly NML1212SC, BW=DC to 20MHz 53 suited to isolating and/or converting DC power NML1215SC, BW=DC to 20MHz 45 rails. The galvanic isolation allows the device to be configured to provide an isolated negative rail in ISOLATION CHARACTERISTICS systems where only positive rails exist. The wide Parameter Conditions Min. Typ. Max. Units temperature range guarantees startup from –40°C Isolation test voltage Flash tested for 1 second 1000 VDC and full 2 watt output at 85°C. Resistance Viso= 500VDC 10 GΩ ABSOLUTE MAXIMUM RATINGS Lead temperature 1.5mm from case for 10 seconds 260°C Input voltage VIN, NML05 types 7V Input voltage VIN, NML12 types 15V 1. Calculated using MIL-HDBK-217F with nominal input voltage at full load. 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/support KDC_NML.F01 Page 1 of 5

NML Series Isolated 2W Single Output DC/DC Converters GENERAL CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units 5V input types 90 Switching frequency kHz 12V input types 90 TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Specification All output types -40 85 Storage -50 130 °C 5V output types 45 Case Temperature above ambient All other output types 36 Cooling Free air convection TEMPERATURE DERATING GRAPH TOLERANCE ENVELOPE +10% 3 +5% Typical Load Line +2.5% V W) 85°C NOM -2.5% er ( 2 age -7.5% Output Pow 1 Safe Operating Area Output Volt 10 25 50 75 100 0 Output Load Current (%) -40 0 50 100 150 The voltage tolerance envelope shows typical load regulation characteristics for this Ambient Temperature (°C) product series. The tolerance envelope is the maximum output voltage variation due to changes in output loading. 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 NML 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?” The NML series has been recognised by Underwriters Laboratory for functional insulation, 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 materi- als, construction and environment. The NML 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 lim- ited. 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 recognised 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. SAFETY APPROVAL The NML series has been recognised by Underwriters Laboratory (UL) to UL 60950 for functional insulation in a maximum ambient temperature of 85ºC and/or case temperature limit of 100ºC as measured at any point on the case of the unit (hotspot). The NML series of converters are not internally fused so to meet the requirements of UL 60950 an anti-surge input line fuse should always be used with ratings as defined below. NML05xxSC: 0.8A NML12xxSC: 0.315A All fuses should be UL recognized and rated to 125V. File number E151252 applies. www.murata-ps.com/support KDC_NML.F01 Page 2 of 5

NML Series Isolated 2W Single Output DC/DC Converters APPLICATION NOTES Minimum load The minimum load to meet datasheet specification is 10% of the full rated load across the specified input voltage range. Lower than 10% minimum loading will result in an increase in output voltage, which may rise to typically double the specified output voltage if the output load falls to less than 5%. Capacitive loading and start up Typical start up times for this series, with a typical input voltage rise time of 2.2μs and output capacitance of 10μF, are shown in the table below. The product series will start into a capacitance of 47μF with an increased start time, however, the maximum recommended output capacitance is 10μF. Start-up time Typical Start-Up Wave Form μs NML0505SC 790 NML0509SC 1154 NML0512SC 2265 NML0515SC 2998 NML1205SC 396 NML1209SC 880 NML1212SC 1156 NML1215SC 2394 Ripple & Noise Characterisation Method Ripple and noise measurements are performed with the following test configuration. C1 1μF X7R m ultilayer ceramic capacitor, voltage rating to be a minimum of 3 times the output voltage of the DC/DC converter 10μF tantalum capacitor, voltage rating to be a minimum of 1.5 times the output voltage of the DC/DC converter with an ESR of less C2 than 100mΩ at 100 kHz C3 100nF multilayer ceramic capacitor, general purpose R1 450Ω resistor, carbon film, ±1% tolerance R2 50Ω BNC termination T1 3T of the coax cable through a ferrite toroid RLOAD Resistive load to the maximum power rating of the DC/DC converter. Connections should be made via twisted wires Measured values are multiplied by 10 to obtain the specified values. Differential Mode Noise Test Schematic DC/DC Converter OSCILLOSCOPE C1 C2 C3 R1 T1 R2 + + Y INPUT SUPPLY Input Output - - R LOAD www.murata-ps.com/support KDC_NML.F01 Page 3 of 5

NML Series Isolated 2W Single Output DC/DC Converters APPLICATION NOTES (continued) 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: It is required that the ESR (Equivalent Series Resistance) should be as low as possible, ceramic 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 C Load Source DC Inductor Capacitor L, μH SMD Through Hole C, μF NML0505SC 22 82223 11R223C 2.2uF NML0509SC 47 82473 11R473C 1uF NML0512SC 47 82473 11R473C 2.2uF NML0515SC 68 82683 11R683C 3.3uF NML1205SC 22 82223 11R223C 2.2uF NML1209SC 47 82473 11R473C 1uF NML1212SC 47 82473 11R473C 2.2uF NML1215SC 68 82683 11R683C 3.3uF www.murata-ps.com/support KDC_NML.F01 Page 4 of 5

NML Series Isolated 2W Single Output DC/DC Converters PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS PIN CONNECTIONS - 4 PIN SIP SIP Package Pin Function 1 -VIN 2 +VIN 3 -VOUT 4 +VOUT 14.00±0.15 [0.551±0.006] TUBE OUTLINE DIMENSIONS 9.3 [0.366] NML N MI 10.00±0.25 [0.394±0.010] 0XY5Y0W5WSC 0.40 [0.016] S 4.10±0.5 [0.161±0.020] 1 2 3 4 12.43 [0.489] 18.0 [0.709] 2.54 [0.100] 0.50±0.05 [0.020±0.002] (3.44 [0.135]) 0.25±0.05 [0.010±0.002] (1.13 [0.044]) 7.50±0.25 [0.295±0.010] 5.0 [0.197] All dimensions in mm (inches). Controlling dimension is mm. Weight: 2.0g Unless otherwise specified all dimensions in mm [inches] ±0.55mm [0.022]. All pins on a 2.54 (0.100) pitch and within ±0.1 (0.004) of true position from pin 1 at seating plane ‘S’ Tube Length : 520mm [20.472] ±2.0 [0.079]. Tube Quantity : 35 RECOMMENDED FOOTPRINT DETAILS RoHS COMPLIANCE INFORMATION 2.54 [0.100] This series is compatible with RoHS soldering systems with a peak wave solder temperature of x4 HOLES 260°C for 10 seconds. The pin termination finish 1.15 [ 0.045] on this product series is Tin Plate, Hot Dipped Ø Ø 1.00 0.039 over Matte Tin with Nickel Preplate. The series is backward compatible with Sn/Pb soldering systems. 2.54 [0.100] For further information, please visit www.murata-ps.com/rohs Unless otherwise stated all dimensions in mm (inches) ±0.5mm. This product is subject to the following operating requirements Murata Power Solutions, Inc. and the Life and Safety Critical Application Sales Policy: 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. Refer to: http://www.murata-ps.com/requirements/ ISO 9001 and 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. © 2017 Murata Power Solutions, Inc. www.murata-ps.com/support KDC_NML.F01 Page 5 of 5

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: M urata: NML0512SC NML0515SC NML1205SC NML1215SC NML0505SC NML1212SC NML0509SC NML1209SC