NTA Series Isolated 1W Dual Output SM DC/DC Converters SELECTION GUIDE 1 Order Code FEATURES RoHS compliant Efficiency up to 78% Wide temperature performance at full 1 Watt load, –40°C to 85°C UL 94V-0 Package material Footprint over pins 1.64cm2 Lead frame technology 3.3V, 5V & 12V Input 3.3V, 5V, 9V, 12V & 15V Output Internal SMD construction Toroidal magnetics Nominal Input Voltage V NTA0303MC NTA0305MC NTA0309MC NTA0312MC NTA0315MC NTA0503MC NTA0505MC NTA0505MEC NTA0509MC NTA0512MC NTA0515MC NTA1205MC NTA1209MC NTA1212MC NTA1215MC 3.3 3.3 3.3 3.3 3.3 5 5 5 5 5 5 12 12 12 12 mA ±3.3 ±5 ±9 ±12 ±15 ±3.3 ±5 ±5 ±9 ±12 ±15 ±5 ±9 ±12 ±15 ±152 ±100 ±55 ±42 ±33 ±152 ±100 ±100 ±55 ±42 ±33 ±100 ±55 ±42 ±33 402 388 405 390 392 259 290 251 267 260 256 121 113 111 110 Output Current Efficiency % pF kHrs 75 78 75 77 77 77 69 80 75 77 78 69 74 75 76 29 30 34 40 42 31 33 42 38 44 43 50 72 89 100 1005 399 827 375 206 964 1697 367 682 343 188 559 375 243 154 INPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. Voltage range Continuous operation, 3V input types Continuous operation, 5V input types Continuous operation, 12V input types 2.97 4.5 10.8 3.3 5 12 41 3.63 5.5 13.2 50 mA p-p Typ. Max. Units Reflected ripple current Power density 1.36W/cm3 ISOLATION CHARACTERISTICS No heatsink required Parameter Conditions Min. Isolation voltage Resistance Flash tested for 1 second Viso= 1000VDC 1000 10 Custom solutions available Isolation MTTF2 Capacitance 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. 1kVDC Isolation MTTF up to 2.1 Million hours V Input Current at Rated Load mA Output Voltage Units V VDC GΩ Multi-layer ceramic capacitors GENERAL CHARACTERISTICS PRODUCT OVERVIEW The NTA series of miniature surface mounted DC/DC Converters employ leadframe technology and transfer moulding techniques to bring all of the benefits of IC style packaging to hybrid circuitry. Co-planarity of the lead positions is based upon IEC 191-6:1990. The devices are suitable for all applications where high volume production is envisaged. Parameter Conditions Switching frequency 0312MC, 0315MC 0303MC, 0305MC, 0503MC, 0505MEC All other variants Min. Typ. 100 110 115 Max. Units kHz ABSOLUTE MAXIMUM RATINGS Short-circuit protection3 Lead temperature 1.5mm from case for 10 seconds Internal power dissipation Input voltage VIN, NTA03 types Input voltage VIN, NTA05 types Input voltage VIN, NTA12 types 1 second 300°C 700mW 5.5V 7V 15V 1. If components are required in tape and reel format suffix order code code with -R, e.g. NTA0505MC-R. 2. Calculated using MIL-HDBK-217F with nominal input voltage at full load. 3. Supply voltage must be disconnected 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. For full details go to www.murata-ps.com/rohs www.murata-ps.com Technical enquiries - email: [email protected], tel: +44 (0)1908 615232 KDC_NTA.G04 Page 1 of 4 NTA Series Isolated 1W Dual Output SM DC/DC Converters OUTPUT CHARACTERISTICS Parameter Conditions Rated Power Voltage Set Point Accuracy Line regulation TA=-40°C to 85°C See tolerance envelope High VIN to low VIN 10% load to rated load, 0303MC & 0503MC 10% load to rated load, 5V output types 10% load to rated load, 0309MC 10% load to rated load, 0509MC & 1209MC 10% load to rated load, 0312MC & 0315MC 10% load to rated load, 0512MC & 1212MC 10% load to rated load, 0515MC & 1215MC BW=DC to 20MHz, 3.3V output types, NTA0305MC & NTA0505MEC BW=DC to 20MHz, all other 5V output types BW=DC to 20MHz, 9V output types BW=DC to 20MHz, 12V output types BW=DC to 20MHz, 15V output types Load Regulation1 Ripple and Noise Min. Typ. Max. Units 1.0 W 1.0 10 10 9.0 6.5 11 6.0 6.0 40 50 35 50 65 1.2 15 12 10 8.0 14 8.5 7.0 80 100 80 110 110 %/% Typ. Max. % mV p-p TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Specification Storage All output types -40 -55 Case temperature rise above ambient Cooling 0305MC, 0505MEC, 0312MC, 0315MC 0303MC, 0309MC, 0503MC 0505MC, 1205MC All other variants Free air convection Units 85 125 19 25 46 35 °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 specified time, across a component designed to provide electrical isolation, to verify the integrity of that isolation. Murata Power Solutions NTA 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 NTA 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 NTA 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. RoHS COMPLIANCE INFORMATION TEMPERATURE DERATING GRAPH Output Power (W) 1.5 85°C 1.0 0.5 0 -40 This series is compatible with RoHS soldering systems with a peak reflow solder temperature of 245ºC and time above liquidus of 217ºC for 80 seconds. The pin termination finish on this product series is Gold, plating thickness 0.1 microns minimum. The series is backward compatible with Sn/Pb soldering systems. For further information, please visit www.murata-ps.com/rohs Safe Operating Area 100 50 0 Ambient Temperature (°C) 150 1. 12V input types have typically 3% less load regulation change. www.murata-ps.com Technical enquiries - email: [email protected], tel: +44 (0)1908 615232 KDC_NTA.G04 Page 2 of 4 NTA Series Isolated 1W Dual Output SM DC/DC Converters TOLERANCE ENVELOPES All other types. Tolerance Envelope - 3.3V output types. +10% +9% oad Lin Output Voltage +1% VNOM e +1% -7% -7% -15% 10 75 50 25 Output Load Current (%) Typical L +5% VNOM Output Voltage Typical L oad Line +2.5% -2.5% -7.5% 75 50 25 Output Load Current (%) 10 100 100 PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS PIN CONNECTIONS 0.600 (15.24) Pin 0.400 (10.16) 18 0.441 0.409 (11.20) (10.40) 0.303 (7.70) 16 14 12 10 NTA0505MC P XYYWW 1 3 5 7 0.059(1.50) 0.047(1.20) 10 PINS 9 0.026(0.65) 0.022(0.55) 0.100(2.54) 0.020(0.5) REFERENCE PLANE 0.008(0.2) ±5.00 ° S 0.083 (2.10) 0.260 (6.6) 0.250 (6.35) 0.234 (5.95) 0.230 (5.85) DETAIL A Function 1 -VIN 3 +VIN 5 NA 7 OV 9 -VOUT 10 NA 12 +VOUT 14 NA 16 NA 18 NA S SEATING PLANE 0.010 (0.25) 0.004 (0.10) NA - Not available for electrical connection. 10 PINS 0.004 (0.1) S 0.11 (2.79) MAX All dimensions in inches ±0.01 (mm ±0.25mm). All pins on a 0.1 (2.54) pitch. 0.074 (1.875) MAX 0.012 (0.30) 0.008 (0.20) Weight: 1.53g TUBE OUTLINE DIMENSIONS RECOMMENDED FOOTPRINT DETAILS .*/ Unless otherwise stated all dimensions in inches ±0.02 (mm±0.5). Tube length : 18.70±0.07 (475±2.0). www.murata-ps.com Tube Quantity : 25 Technical enquiries - email: [email protected], tel: +44 (0)1908 615232 KDC_NTA.G04 Page 3 of 4 NTA Series Isolated 1W Dual Output SM DC/DC Converters TAPE & REEL SPECIFICATIONS REEL OUTLINE DIMENSIONS TAPE OUTLINE DIMENSIONS ."9 ."9 .*/ %*3&$5*0/0'6/3&&-*/( ."9 "5)6#4&$5*0/ REEL PACKAGING DETAILS XYYWW NTA0505MC XYYWW NTA0505MC XYYWW NTA0505MC Product Orientation Pin 1, located nearest to carrier drive sprocket. TRAILER SECTION 6.30 (160) MIN GOODS ENCLOSURE SECTION CARRIER TAPE START 3.94 (100) MIN LEADER SECTION 15.75 (400) MIN Reel Quantity : 500 USA: Tucson (Az), Tel: (800) 547 2537, email: [email protected] Canada: Toronto, Tel: (866) 740 1232, email: [email protected] Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356 www.murata-ps.com email: [email protected] ISO 9001 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. © 2008 Murata Power Solutions, Inc. www.murata-ps.com UK: Milton Keynes, Tel: +44 (0)1908 615232, email: [email protected] France: Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: [email protected] Germany: München, Tel: +49 (0)89-544334-0, email: [email protected] Japan: Tokyo, Tel: 3-3779-1031, email: [email protected] Osaka, Tel: 6-6354-2025, email: [email protected] Website: www.murata-ps.jp China: Shanghai, Tel: +86 215 027 3678, email: [email protected] Guangzhou, Tel: +86 208 221 8066, email: [email protected] Technical enquiries - email: [email protected], tel: +44 (0)1908 615232 KDC_NTA.G04 Page 4 of 4