NMH1212DC

NMH Series www.murata.com Isolated 2W Dual Output DC-DC Converters FEATURES „ Efficiency up to 86% „ Wide temperature performance at full 2 watt load, –40°C to 85°C „ Dual output from a single input rail „ Industry standard pinout „ Power sharing on output „ 1kVDC isolation ‘Hi Pot Test’ „ 5V, 12V & 24V inputs Output Output Voltage Current Input Current at Rated Load Isolation MTTF1 Capacitance V V mA mA % pF kHrs NMH0509DC NMH0512DC NMH0515DC NMH0505SC NMH0509SC NMH0512SC NMH0515SC NMH1212SC NMH1215SC NMH2405SC NMH2409SC NMH2412SC NMH2415SC 5 5 5 5 5 5 5 12 12 24 24 24 24 ±9 ±12 ±15 ±5 ±9 ±12 ±15 ±12 ±15 ±5 ±9 ±12 ±15 ±111 ±83 ±67 ±200 ±111 ±83 ±67 ±83 ±67 ±200 ±111 ±83 ±67 494 488 476 500 494 488 476 198 198 103 98 97 97 81 82 84 80 81 82 84 84 84 81 85 86 86 28 30 33 24 28 30 33 63 66 41 75 95 104 663 338 187 1574 663 338 187 229 148 318 249 183 127 NMH0505DC NMH1205DC NMH1209DC NMH1212DC NMH1215DC NMH2412DC NMH2415DC NMH1205SC NMH1209SC 5 12 12 12 12 24 24 12 12 ±5 ±5 ±9 ±12 ±15 ±12 ±15 ±5 ±9 ±200 ±200 ±111 ±83 ±67 ±83 ±67 ±200 ±111 500 208 201 198 198 97 97 208 201 80 80 83 84 84 86 86 80 83 24 35 55 63 66 95 104 35 55 1574 490 343 229 148 183 127 490 343 NMH2405DC NMH2409DC NMH4805DC NMH4809DC NMH4812DC NMH4815DC NMH4805SC NMH4809SC NMH4812SC NMH4815SC 24 24 48 48 48 48 48 48 48 48 ±5 ±9 ±5 ±9 ±12 ±15 ±5 ±9 ±12 ±15 ±200 ±111 ±200 ±111 ±83 ±67 ±200 ±111 ±83 ±67 103 98 51 51 49 49 51 51 49 49 81 85 82 82 85 85 82 82 85 85 41 75 45 74 90 112 45 74 90 112 318 249 235 195 152 112 235 195 152 112 Package Style Order Code Nominal Input Voltage Efficiency SELECTION GUIDE Recommended Alternative DIP SIP „ 5V, 9V, 12V & 15V outputs „ No external components required „ MTTF up to 1.5 million hours „ No electrolytic or tantalum capacitors „ Pin compatible with MEA1 series DESCRIPTION The NMH series of industrial temperature range DC-DC converters are the standard building blocks for on-board point-of-use power systems. They are ideally suited for providing dual rail supplies on single rail boards with the added benefit of galvanic isolation to reduce circuit noise. All of the rated power may be drawn from a single pin provided the total load does not exceed 2 watts. Pin compatibility with the NMA 1 watt series ensures minimal effort in upgrading distributed power systems. NMK0505SC MEJ2D1205SC MEJ2S1209SC DIP NMK1212SC NMK1215SC Contact Murata NMK2415SC MEJ2D1205SC SIP MEJ2S1209SC DIP Contact Murata NMH2409SC Contact Your Local Sales Rep „ Internal SMD construction DIP SIP INPUT CHARACTERISTICS Parameter Voltage range Reflected ripple current For full details go to https://www.murata.com/englobal/products/power/rohs Conditions Min. Typ. Max. Units Continuous operation, 5V input types Continuous operation, 12V input types Continuous operation, 24V input types Continuous operation, 48V input types 5V input types 12V input types 24V input types 48V input types 4.5 10.8 21.6 43.2 5 12 24 48 50 70 130 200 5.5 13.2 26.4 52.8 V mA p-p 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. www.murata.com KDC_NMH.L01 Page 1 of 9 NMH Series Isolated 2W Dual Output DC-DC Converters OUTPUT CHARACTERISTICS Parameter Rated Power Voltage Set Point Accuracy Line regulation Load Regulation Ripple and Noise Conditions TA=-40°C to 85°C, see derating graph Min. NMH0505XC All other types 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 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 -5 -5 Typ. Max. Units W 1.0 5 2 7.5 5 1.2 10 3 10 150 100 80 70 200 150 150 150 mV p-p Max. Units % %/% % ISOLATION CHARACTERISTICS Parameter Conditions Min. Typ. Isolation test voltage Resistance Flash tested for 1 second Viso= 500V 1000 1 10 Parameter Conditions Min. Typ. Switching frequency 5V input types 12V input types 24V & 48V input types VDC GΩ GENERAL CHARACTERISTICS Max. 95 90 80 Units kHz TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Specification Storage All output types -40 -50 Case Temperature above ambient Cooling 5V output types 12V output types Free air convection Typ. Max. 85 130 30 25 Units °C ABSOLUTE MAXIMUM RATINGS Lead temperature 1.5mm from case for 10 seconds 260°C Wave Solder Wave Solder profile not to exceed the profile recommended in IEC 61760-1 Section 6.1.3. Please refer to application notes for further information. Input voltage VIN, NMH05 types Input voltage VIN, NMH12 types Input voltage VIN, NMH24 types Input voltage VIN, NMH48 types 7V 15V 28V 54V www.murata.com KDC_NMH.L01 Page 2 of 9 NMH Series Isolated 2W Dual Output DC-DC Converters 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 NMH 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 NMH 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 NMH series has toroidal isolation transformers, with no additional insulation between primary and secondary windings of enamelled 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 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. RoHS COMPLIANCE INFORMATION This series is compatible with RoHS soldering systems with a peak wave solder temperature of 260°C for 10 seconds. Please refer to application notes for further information. 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 PART NUMBER STRUCTURE NMH XX XX X C Series name RoHS compliant Input voltage Package type Output voltage S - SIP D - DIP M - Surface mount Z - ZIP www.murata.com KDC_NMH.L01 Page 3 of 9 NMH Series Isolated 2W Dual Output DC-DC Converters CHARACTERISATION TEST METHODS Ripple & Noise Characterisation Method Ripple and noise measurements are performed with the following test configuration. C1 1μF X7R multilayer 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 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. C2 Differential Mode Noise Test Schematic DC/DC Converter OSCILLOSCOPE C1 C2 C3 + SUPPLY Input - + R1 T1 R2 Y INPUT Output - R LOAD 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. NMH0505XC NMH0509XC NMH0512XC NMH0515XC NMH1205XC NMH1209XC NMH1212XC NMH1215XC Start-up time μs 1072 2481 3546 5380 672 1152 1580 3150 NMH2405XC NMH2409XC NMH2412XC NMH2415XC NMH4805XC NMH4809XC NMH4812XC NMH4815XC Start-up time μs 1064 1544 4398 4230 966 1220 2822 4275 Typical Start-Up Wave Form www.murata.com KDC_NMH.L01 Page 4 of 9 NMH Series Isolated 2W Dual 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 20MHz. +VOUT Power Source DC DC L C Load C Load OV -VOUT L Order Code L (μH) NMH0505XC NMH0509XC NMH0512XC NMH0515XC NMH1205XC NMH1209XC NMH1212XC NMH1215XC NMH2405XC NMH2409XC NMH2412XC NMH2415XC NMH4805XC NMH4809XC NMH4812XC NMH4815XC 47 47 150 100 47 47 150 100 47 47 150 100 47 47 150 100 Inductor Order Codes SMD Through Hole 82473C 11R473C 82473C 11R473C 82154C 11R154C 82104C 11R104C 82473C 11R473C 82473C 11R473C 82154C 11R154C 82104C 11R104C 82473C 11R473C 82473C 11R473C 82154C 11R154C 82104C 11R104C 82473C 11R473C 82473C 11R473C 82154C 11R154C 82104C 11R104C C (μF) 4.7 2.2 3.3 3.3 4.7 2.2 3.3 3.3 4.7 2.2 3.3 3.3 4.7 2.2 3.3 3.3 Product specification for MPS inductors can be found at: 1100R Series (Through Hole) http://www.murata-ps.com/data/magnetics/kmp_1100r.pdf 8200 Series (SMD) http://www.murata-ps.com/data/magnetics/kmp_8200c.pdf www.murata.com KDC_NMH.L01 Page 5 of 9 NMH Series Isolated 2W Dual Output DC-DC Converters TOLERANCE ENVELOPES The voltage tolerance envelopes show typical load regulation characteristics for this product series. The tolerance envelope is the maximum output voltage variation due to the changes in output loading. NMH 10% Output Voltage 5% 2.5% 0% -2.5% -7.5% 10 25 50 100 75 Output Load Current (%) TEMPERATURE DERATING GRAPH Load (%) 3 85°C 2 1 0 -40 Safe Operating Area 0 50 100 150 Ambient Temperature (°C) www.murata.com KDC_NMH.L01 Page 6 of 9 NMH Series Isolated 2W Dual Output DC-DC Converters PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS PIN CONNECTIONS - 14 PIN DIP SIP package DIP package  



 Pin Function 1 -VIN 7 NC 8 OV 9 +VOUT 11 -VOUT 14 +VIN PIN CONNECTIONS - 7 PIN SIP 10+;;;;6& ;::