NTV Series www.murata-ps.com 3kVDC Isolated 1W 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 NTV0505MC 5 5 100 282 71 33 1697 NTV0509MC 5 9 55 260 77 38 682 NTV0512MC 5 12 42 253 79 44 343 NTV0515MC 5 15 33 250 80 43 188 FEATURES NTV1205MC 12 5 100 114 73 50 559 RoHS compliant NTV1209MC 12 9 55 105 79 72 375 NTV1212MC 12 12 42 104 80 89 243 Efciency up to 82% NTV1215MC 12 15 33 101 82 100 154 Wide temperature performance at full When operated with additional external load capacitance the rise time of the input voltage will determine the maximum external 1 Watt load, 40C to 85C 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. UL 94V-0 package material 2 INPUT CHARACTERISTICS Footprint over pins 1.64cm Parameter Conditions Min. Typ. Max. Units Lead frame technology Continuous operation, 5V input types 4.5 5 5.5 Voltage range V Dual isolated output Continuous operation, 12V input types 10.8 12 13.2 Reected ripple current 41 47 mA p-p 5V & 12V input 5V, 9V, 12V and 15V output OUTPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Internal SMD construction Rated Power TA=-40C to 85C 1.0 W Toroidal magnetics Voltage Set Point Accuracy See tolerance envelope Line regulation High VIN to low VIN 1.0 1.2 %/% Plastic encapsulated 10% load to rated load, 5V output types 10 12 3kVDC isolation (1 minute) 10% load to rated load, 9V output types 6.5 8.0 3 Load Regulation % 10% load to rated load, 12V output types 6.0 8.5 MTTF up to 1.7 million hours 10% load to rated load, 15V output types 6.0 7.0 3 Power density 1.36W/cm BW=DC to 20MHz, 5V output types 50 75 No heatsink required BW=DC to 20MHz, 9V output types 40 65 Ripple and Noise mV p-p BW=DC to 20MHz, 12V output types 40 60 Custom solutions available BW=DC to 20MHz, 15V output types 40 60 Multi layer ceramic capacitors ABSOLUTE MAXIMUM RATINGS Internal power dissipation 550mW PRODUCT OVERVIEW Input voltage VIN, NTV05 types 7V The NTV series of 3kV isolation miniature Input voltage VIN, NTV12 types 15V surface mounted DC/DC converters employ leadframe technology and transfer moulding 1. If components are required in tape and reel format sufx order code code with -R, e.g. NTV0505MC-R. techniques to bring all of the benets of IC style 2. Calculated using MIL-HDBK-217F with nominal input voltage at full load. packaging to hybrid circuitry. The co-planar- 3. 12V input types have typically 3% less load regulation change. ity of the pin positions is based upon IEC All specications typical at TA=25C, nominal input voltage and rated output current unless otherwise specied. 191-6:1990. The devices are suitable for all applications where high volume production is envisaged. For full details go to www.murata-ps.com/rohs www.murata-ps.com/support KDC NTV.F02 Page 1 of 4Typical Load Line NTV Series 3kVDC Isolated 1W Dual Output SM DC/DC Converters ISOLATION CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Isolation test voltage Flash tested for 1 minute 3000 VDC Resistance Viso= 1000VDC 10 G GENERAL CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units 5V input types 115 Switching frequency kHz 12V input types 120 TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Specication All output types -40 85 Storage -55 125 C 5V output types 33 Case temperature above ambient All other output types 25 Cooling Free air convection TOLERANCE ENVELOPE TEMPERATURE DERATING GRAPH 1.5 +10% +5% +2.5% 85C 1.0 V NOM -2.5% -7.5% 0.5 Safe Operating Area 0 100 10 25 50 75 -40 0 50 100 150 Output Load Current (%) 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, ap- plied for a specied time, across a component designed to provide electrical isolation, to verify the integrity of that isolation. Murata Power Solutions NTV series of DC/DC converters are all 100% production tested at their stated isolation voltage. This is 3kVDC for 1 minute. 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 NTV 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 NTV 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 there- fore 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 insula- tion system of physical spacing or barriers. MINIMUM LOAD The minimum load to meet datasheet specication is 10% of the full rated load across the specied input voltage range. Lower than 10% minimum loading will result in an increase in output voltage, which may rise to typically double the specied output voltage if the output load falls to less than 5%. www.murata-ps.com/support KDC NTV.F02 Page 2 of 4 Output Power (W) Output Voltage