NTH Series www.murata-ps.com Isolated 2W Dual Output SM DC/DC Converters SELECTION GUIDE Nominal Input Output Output Isolation 2 Input Current at Efciency MTTF 1 Order Code Voltage Current Capacitance Voltage Rated Load V V mA mA % pF kHrs NTH0505MC 5 5 200 500 80 27 2175 NTH0509MC 5 9 111 494 81 34 913 NTH0512MC 5 12 83 488 82 39 465 FEATURES NTH0515MC 5 15 67 476 84 37 257 NTH1205MC 12 5 200 208 80 35 675 RoHS compliant NTH1209MC 12 9 111 201 83 57 472 Efciency up to 84% NTH1212MC 12 12 83 198 84 66 315 NTH1215MC 12 15 67 198 84 63 204 Wide temperature performance at full 2 Watt load, 40C to 85C INPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units UL 94V-0 Package material Continuous operation, 5V input types 4.5 5 5.5 Lead frame technology Voltage range V Continuous operation, 12V input types 10.8 12 13.2 5V & 12V Input 5V input types 40 Reected ripple current mA p-p 12V input types 30 5V, 9V, 12V & 15V Output OUTPUT CHARACTERISTICS Internal SMD construction Parameter Conditions Min. Typ. Max. Units Dual isolated output 3 Rated power TA=-40C to 85C 2.0 W NTHXX05, 10% to 100% load -5.0 7.5 1kVDC Isolation Voltage set point % accuracy All other variants, 10% to 100% load -5.0 5.0 MTTF up to 2.17 million hours Line regulation High VIN to low VIN 1.0 1.2 %/% 3 Power density 1.61W/cm 10% load to rated load, 5V output types 5.0 10 2 Load regulation % 10% load to rated load, all other output types 3.0 10 No heatsink required BW=DC to 20MHz, 5V output types 150 200 Custom solutions available BW=DC to 20MHz, 9V output types 100 150 Ripple & noise mV p-p BW=DC to 20MHz, 12V output types 80 150 Multi layer ceramic capacitors BW=DC to 20MHz, 15V output types 70 150 DESCRIPTION ISOLATION CHARACTERISTICS The NTH series of miniature surface mounted Parameter Conditions Min. Typ. Max. Units DC/DC converters employ leadframe technol- Isolation test voltage Flash tested for 1 second 1000 VDC ogy and transfer moulding techniques to bring Resistance Viso= 500VDC 1 10 G all of the benets of IC style packaging to hy- GENERAL CHARACTERISTICS brid circuitry. The component lead termination Parameter Conditions Min. Typ. Max. Units of this product range is lead-free compatible, All 5V input types 95 therefore the converter can be soldered in a Switching frequency kHz All 12V input types 90 lead-free soldering process. Co-planarity of the lead positions is based upon IEC 191-6:1990. ABSOLUTE MAXIMUM RATINGS The devices are suitable for all applications Internal power dissipation 550mW where high volume production is envisaged. Input voltage VIN, NTH05 types 7V Input voltage VIN, NTH12 types 15V 1. If components are required in tape and reel format sufx order code code with -R, e.g. NTH0505MC-R. 2. Calculated using MIL-HDBK-217F with nominal input voltage at full load. 3. See derating graph. All specications typical at TA=25C, nominal input voltage and rated output current unless otherwise specied. For full details go to www.murata-ps.com/rohs www.murata-ps.com/support KDC NTH.C03 Page 1 of 6Typical Load Line Typical Load Line NTH Series Isolated 2W Dual Output SM DC/DC Converters TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Specication All output types -40 85 Storage -55 125 C Case temperature rise above 5V output types 30 ambient All other output types 25 Cooling Free air convection TOLERANCE ENVELOPE 5V output types All other output types +7.5% +5% +3.75% +2.5% +2.0% +1.5% 0% -1.5% -1.25% -2.0% -5.0% -5.0% 10 25 50 75 100 10 25 50 75 100 Output Load Current (%) Output Load Current (%) The voltage tolerance envelope shows typical load regulation characteristics for this product series. The tolerance envelope is the maximum output voltage variation due to changes in output loading. RoHS COMPLIANCE INFORMATION TEMPERATURE DERATING GRAPH 3.0 This series is compatible with RoHS soldering systems with a peak reow solder temperature 85C 2.0 of 245C and time above liquidus of 217C for 60 seconds. The pin termination nish on this product series is Gold, plating thickness 1.0 Safe Operating Area 0.1 microns minimum. The series is backward compatible with Sn/Pb soldering systems. 0 -40 0 50 100 150 For further information, please visit www.murata-ps.com/rohs Ambient Temperature (C) 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 specied time, across a component designed to provide electrical isolation, to verify the integrity of that isolation. Murata Power Solutions NTH 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 specic agency approvals, such as the NTH 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 NTH 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 specied 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 NTH.C03 Page 2 of 6 Output Voltage Output Voltage Output Power (W)