NMF Series www.murata-ps.com Isolated 1W Regulated Single Output DC/DC Converters Power density 0.85W/cm3 Single isolated output SIP & DIP package styles UL 94V-0 package material No heatsink required Footprint from 1.17cm2 1kVDC isolation 5V, 12V, 24V & 48V input V V mA mW % pF kHrs 5 5 5 5 5 5 12 12 12 12 12 12 24 24 24 24 24 24 24 24 5 12 15 5 12 15 5 12 15 5 12 15 5 9 12 15 5 9 12 15 100 83 67 100 83 67 100 83 67 100 83 67 100 100 83 67 100 100 83 67 500 1000 1000 500 1000 1000 500 1000 1000 500 1000 1000 500 900 1000 1000 500 900 1000 1000 50 62 62 50 62 62 50 62 62 50 62 62 50 62 62 62 50 62 62 62 37 46 52 37 46 52 62 98 108 62 98 108 69 106 129 151 69 106 129 151 1307 512 316 1307 512 316 456 290 218 456 290 218 843 613 422 279 843 613 422 279 5V, 9V, 12V & 15V output SMD construction Fully encapsulated with toroidal magnetics No external components required MTTF up to 2.4 million hours PCB mounting DESCRIPTION The NMF series of DC/DC converters is used where a tightly regulated supply is required. They are ideal for situations where the intput voltage is not tightly controlled. The output trim pin makes the device particularly suitable for applications requiring a programmable output voltage. The 5V output version can be used to give a regulated output, adjustable between 1.2V and 5.0V with a single resistor. An option not to have this function is available, on SIP package type parts, prefix C with N. The single rail regulated output makes the ideal choice to power sensors, such as pressure transducers, hall effect sensors and mass airflow sensors. For full details go to www.murata-ps.com/rohs MTTF1 Isolation Capacitance Output programmable Efficiency Output regulation <1.5% Power Out RoHS compliant Output Current FEATURES NMF0505DC NMF0512DC NMF0515DC NMF0505SC NMF0512SC NMF0515SC NMF1205DC NMF1212DC NMF1215DC NMF1205SC NMF1212SC NMF1215SC NMF2405DC NMF2409DC NMF2412DC NMF2415DC NMF2405SC NMF2409SC NMF2412SC NMF2415SC Output Voltage Order Code Nominal Input Voltage SELECTION GUIDE Package Style DIP DIP DIP SIP SIP SIP DIP DIP DIP SIP SIP SIP DIP DIP DIP DIP SIP SIP SIP SIP Obsolete NMF0509DC NMF0509SC NMF1209DC NMF1209SC NMF4805DC NMF4809DC NMF4812DC NMF4815DC NMF4805SC NMF4809SC NMF4812SC NMF4815SC 5 5 12 12 48 48 48 48 48 48 48 48 9 9 9 9 5 9 12 15 5 9 12 15 100 100 100 100 100 100 83 67 100 100 83 67 900 900 900 900 500 900 1000 1000 500 900 1000 1000 62 62 62 62 50 62 62 62 50 62 62 62 42 42 82 82 51 86 108 127 51 86 108 127 825 825 379 379 200 283 162 135 200 283 162 135 DIP SIP DIP SIP DIP DIP DIP DIP SIP SIP SIP SIP Recommended Alternative Contact Murata Contact Murata Contact Murata Contact Murata Contact Murata Contact Murata Contact Murata Contact Murata Contact Murata Contact Murata Contact Murata Contact Murata 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. ABSOLUTE MAXIMUM RATINGS Short-circuit protection2 Lead temperature 1.5mm from case for 10 seconds Internal power dissipation Input voltage VIN, NMF05 types Input voltage VIN, NMF12 types Input voltage VIN, NMF24 types Input voltage VIN, NMF48 types 1 second 300°C 450mW 7V 15V 28V 54V 1. Calculated using MIL-HDBK-217F with nominal input voltage at full load. 2. Supply voltage must be discontinued 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. www.murata-ps.com/support KDC_NMF.F02 Page 1 of 5 NMF Series Isolated 1W Regulated Single Output DC/DC Converters INPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Voltage range Continuous operation, 5V input types Continuous operation, 12V input types Continuous operation, 24V input types Continuous operation, 48V input types 4.75 11.4 22.8 45.6 5 12 24 48 5.25 12.6 25.2 50.4 V Parameter Conditions Min. Typ. Max. Units Voltage set point accuracy Rated power 1 Line regulation Load regulation Ripple & noise 100% load TA= 0°C to 70°C High VIN to low VIN 10% load to rated load BW=DC to 20MHz, all output types 5 1 0.25 1.5 60 % W %/% % mV p-p Max. Units OUTPUT CHARACTERISTICS 0.9 ISOLATION CHARACTERISTICS Parameter Conditions Min. Isolation test voltage Resistance Flash tested for 1 second Viso= 500VDC 1000 0.1 Parameter Conditions Min. Switching frequency All input types Typ. VDC GΩ GENERAL CHARACTERISTICS Typ. Max. 90 Units kHz TEMPERATURE CHARACTERISTICS Parameter Conditions Specification Case temperature above ambient Storage Cooling All output types Min. Output Power (W) °C 150 RoHS COMPLIANCE INFORMATION This series is compatible with RoHS soldering systems with a peak wave solder temperature of 300ºC for 10 seconds. The pin termination finish on the SIP package type is Tin Plate, Hot Dipped over Matte Tin over Nickel Preplate. The DIP types are Matte Tin over Nickel Preplate. Both types in this series are backward compatible with Sn/Pb soldering systems. 70°C 125ºC 0 Units 70 Free air convection 50% Safe Operating Area 0 Max. 38 -55 TEMPERATURE DERATING GRAPH 100% Typ. 0 50 100 Ambient Temperature (ºC) 150 For further information, please visit www.murata-ps.com/rohs OUTPUT VOLTAGE ADJUSTMENT (for 5V output variants) The trimming (adjust) input on the device allows output voltage adjustment from 1.2V to 3.3VDC by using a resistor as shown here. The table below provides RTRIM values for the most commonly required output voltages. For applications not requiring the TRIM function, this pin must be left unconnected for normal regulated output. +VIN NMF VOUT VOUT SET (V) 1.2 -VOUT 1.5 2.0 2.1 2.2 2.5 3.3 TRIM RTRIM -VIN RTRIM (Ω) 0 64 224 263 304 448 1071 www.murata-ps.com/support KDC_NMF.F02 Page 2 of 5 NMF Series Isolated 1W Regulated Single Output DC/DC Converters TYPICAL APPLICATIONS Pressure sensor, or strain gauge equivalent circuit Scmitt Trigger 7DD 7 7 "OPEF /.'4$ /.'4$ 7P 7065 $BUIPEF (/% 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 NMF 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 NMF 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 NMF 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/support KDC_NMF.F02 Page 3 of 5 NMF Series Isolated 1W Regulated Single 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) NMF1205DC XYYWW 0.236 (6.00)** 0.268 (6.80)* NMF1212SC XYYWW 0.3 (7.62) 0.020±0.002 (0.50±0.05) 0.3 (7.62) 0.084 (2.13) 2 † 11 10 9 0.5 (12.70) 0.0118 (0.30) 0.0079 (0.20) 0.1 (2.54) 0.22 (0.55) 0.0178 (0.45) † 0.05 (1.25) † Trim pin not fitted on suffix SNC parts. * 0.303 (7.70) for 24V & 48V variants ** 0.295 (7.50) for 24V & 48V variants 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. 0.022 (0.55) 0.0178 (0.45) 6 4 5 0.079 (2.00) 1 14 1 0.181 (4.60) 0.141 (3.60) 0.043 (1.09) Function 1 9 10 11 14 -VIN +VOUT TRIM -VOUT +VIN PIN CONNECTIONS - 7 PIN SIP 0.394 (10.00) 0.181 (4.60) 0.142 (3.60) Pin Pin Function 1 2 4 5 6 +VIN -VIN -VOUT TRIM† +VOUT 0.0118 (0.30) 0.0079 (0.20) 0.5 (12.70) Weight: 2.4g (DIP) 2.1g (SIP) except for NMF24XX and NMF48XX DIP & SIP : 2.9g 1. See derating graph. www.murata-ps.com/support KDC_NMF.F02 Page 4 of 5 NMF Series Isolated 1W Regulated Single Output DC/DC Converters PACKAGE SPECIFICATIONS (continued) RECOMMENDED FOOTPRINT DETAILS 7 Pin SIP Package 14 Pin DIP Package )0-&4 )0-&4 † † Trim pin not fitted on suffix SNC parts. All dimensions in inches ±0.01 (mm ±0.25mm). TUBE OUTLINE DIMENSIONS 7 Pin SIP Tube 14 Pin DIP Tube All dimensions in inches ±0.01 (mm ±0.25mm). Tube length (14 Pin DIP) : 20.47 (520mm ±2mm). Tube length (7 Pin SIP) : 20.47 (520mm ±2mm). Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. ISO 9001 and 14001 REGISTERED Tube Quantity : 25 This product is subject to the following operating requirements and the Life and Safety Critical Application Sales Policy: Refer to: http://www.murata-ps.com/requirements/ 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. © 2013 Murata Power Solutions, Inc. www.murata-ps.com/support KDC_NMF.F02 Page 5 of 5