NCS6 Series www.murata-ps.com Isolated 6W 4:1 Input Single & Dual Output DC-DC Converters SELECTION GUIDE Input Voltage FEATURES UL 60950 recognised RoHS compliant 4:1 Wide range voltage input Operating temperature range -40C to 85C Order Code Nom. V V Output Current 100% Load A NCS6D1205C NCS6D1212C NCS6D1215C NCS6S1203C NCS6S1205C NCS6S1212C NCS6S1215C NCS6D4805C NCS6D4812C NCS6D4815C NCS6S4803C NCS6S4805C NCS6S4812C NCS6S4815C 12 12 12 12 12 12 12 48 48 48 48 48 48 48 5 12 15 3.3 5 12 15 5 12 15 3.3 5 12 15 0.6 0.25 0.2 1.52 1.2 0.5 0.4 0.6 0.25 0.2 1.52 1.2 0.5 0.4 Typical load regulation from 0.06% INPUT CHARACTERISTICS 1.5kVDC Isolation Parameter Typical efficiency to 87% Voltage range 12V & 48V Nominal input Power density 0.94W/cm3 Under voltage lock out UL 94V-0 Package materials No electrolytic capacitors Reflected ripple current Low noise Under voltage lock out Current fold back PRODUCT OVERVIEW The NCS6 series of DC-DC converters offers single & dual output voltages from input voltage ranges of 9-36V and 18-75V. The NCS6 is housed in an industry standard package with a standard pinout. The NCS6 is packaged in a metal case for improved EMI shielding and is also encapsulated for superior thermal performance. Applications include telecommunications, battery powered systems, process control and distributed power systems. Output Voltage 0% Load mA 7 10 12 10 7 10 12 6 7 7 10 6 7 7 610 580 580 550 610 580 580 160 150 150 150 160 150 150 Conditions 12V input types 48V input types Turn on threshold 12V input types Turn off threshold 12V input types Turn on threshold 48V input types Turn off threshold 48V input types Single output types 12V input types Dual output types Single output types 48V input types Dual output types Efficiency MTTF1 Min. Typ. % % Hrs 15 10 20 30 30 30 30 50 30 30 40 30 30 30 80 82 84 75 79 84 85 79 82 82 73 78 82 83 82 86 87 78 82 86 87 80 84 84 76 80 84 84 384,470 406,121 344,957 662,073 521,975 435,567 437,582 373,195 391,563 330,752 483,460 441,850 408,555 416,319 Min. Typ. Max. Units 9 18 12 48 8.5 7.5 16.7 15.8 12 4 9 6 36 75 V Typ. Max. 0.002 0.09 0.5 0.3 0.06 0.2 6 5 2 3 0.2 0.7 0.6 0.5 0.2 1.0 V mA p-p OUTPUT CHARACTERISTICS Parameter Rated power Voltage set point accuracy Conditions Min. 5V, 12V & 15V output types 3.3V output types Positive outputs Negative outputs Line regulation Low line to high line Load Regulation 10% total load to 100% total load Cross Regulation % voltage change on negative output when positive load varies from 12.5% to 37.5% with negative load fixed at 50% Positive outputs Negative outputs 3V outputs 5V positive outputs 12V & 15V positive outputs All negative outputs 3.3V & 5V output types Start-up Time 12V output types 15V output types For full details go to www.murata-ps.com/rohs Ripple & 100% Noise (Typ.) Load mA mV p-p Input Current 5V Units W % % % 5 % 12V & 15V Single output types Dual output types Single output types Dual output types Single output types Dual output types 2.5 2.5 25 4.6 11 5.5 14 mS 1 Calculated using MIL-HDBK-217F FN2, parts stress method with nominal input voltage at full load. All specifications typical at TA=25C, nominal input voltage and rated output current unless otherwise specified. www.murata-ps.com/support KDC_NCS6C.D05 Page 1 of 11 NCS6 Series Isolated 6W 4:1 Input Single & Dual Output DC-DC Converters ISOLATION CHARACTERISTICS Parameter Conditions Min. Isolation test voltage Resistance Capacitance Flash tested for 1 seconds Viso = 1kVDC 1500 1 Typ. Max. Units VDC G pF 225 ABSOLUTE MAXIMUM RATINGS Short-circuit protection (for SELV input voltages) Internal power dissipation Continuous 2.1W Lead temperature 1.0mm from case for 10 seconds (to JEDEC JESD22-B106 ISS C) 260C Minimum output load for specification (see application notes) Input voltage, NCS6 12V input types Input voltage, NCS6 48V input types 10% of rated load 40V 80V GENERAL CHARACTERISTICS1 Parameter Conditions Min. Switching frequency Typ. Max. 180 Units kHz TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Operation Storage 48VIN Dual outputs Case temperature rise above ambient 100% Load, Nom VIN, Still Air All other output types Thermal shutdown Typ. -40 -50 Case Temperature 5V 12V 15V 3.3V 5V 12V 15V Max. Units 85 125 36 32 31 32 32 28 26 105 C www.murata-ps.com/support KDC_NCS6C.D05 Page 2 of 11 NCS6 Series Isolated 6W 4:1 Input Single & 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 NCS6 series of DC-DC converters are all 100% production tested at their stated isolation voltage. This is 1.5kVDC for 1 second. A question commonly asked is, "What is the continuous voltage that can be applied across the part in normal operation?" The NCS6 has been recognised by Underwriters Laboratory for functional isolation. 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 NCS6 series has an ER ferrite core, 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. SAFETY APPROVAL The NCS6 series has been recognised by Underwriters Laboratory (UL) to UL 60950 for functional insulation in a maximum ambient temperature of 85C and/or case temperature limit of 120C (case temperature measured on the face opposite the pins). File number E151252 applies. Note: This series gained UL 60950 recognition for products manufactured on or after datecode G1114, any NCS6 parts manufactured before this date code should not be considered UL 60950 recognised. Any NCS6 that is UL recognised will be printed with the UL logo. RoHS COMPLIANCE INFORMATION This series is compatible with RoHS soldering systems with a peak wave solder temperature of 260C for 10 seconds. The pin termination finish on this product series is a Gold flash (0.05-0.10 micron) over Nickel Preplate. The series is backward compatible with Sn/Pb soldering systems. For further information, please visit www.murata-ps.com/rohs www.murata-ps.com/support KDC_NCS6C.D05 Page 3 of 11 NCS6 Series Isolated 6W 4:1 Input Single & Dual Output DC-DC Converters APPLICATION NOTES Output Capacitors The NCS6 series does not require output capacitors to meet datasheet specification. To meet datasheet specification, total output capacitance should not exceed: Output Voltage (V) 3.3 5 12 15 Output Capacitance (F) 470 470 220 220 Minimum Load The minimum load to meet full datasheet specification is 10% of the full rated load across the specified input voltage range. Between 0% and 10% output loading, the positive output voltage will remain within data sheet specification however, output ripple and noise will increase as well as a decrease in accuracy on negative outputs. CHARACTERISATION TEST METHODS Ripple & Noise Characterisation Method Ripple and noise measurements are performed with the following test configuration. C1 1F X7R multilayer ceramic capacitor, voltage rating to be a minimum of 3 times the output voltage of the DC-DC converter 10F 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 C2 than 100m at 100 kHz C3 100nF multilayer ceramic capacitor, general purpose R1 450 resistor, carbon film, 1% tolerance R2 50 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. Differential Mode Noise Test Schematic DC/DC Converter OSCILLOSCOPE C1 C2 C3 + SUPPLY Input - + R1 T1 R2 Y INPUT Output - R LOAD www.murata-ps.com/support KDC_NCS6C.D05 Page 4 of 11 NCS6 Series Isolated 6W 4:1 Input Single & Dual Output DC-DC Converters EFFICIENCY VS LOAD NCS6S1203C NCS6S1205C 82 90 80 80 Efficiency (%) 70 Efficiency (%) 78 12V 76 24V 12V 60 24V 50 40 30 74 20 72 10 0 70 10% 20% 30% 40% 50% 60% 70% 80% 10% 90% 100% 110% 20% 30% 40% NCS6S1212C 90 80 80 70 12V 50 Efficiency (%) Efficiency (%) 24V 40 60 90% 100% 40 30 20 20 10 10 10% 20% 30% 40% 50% 60% 70% 80% 90% 0 100% 10% 20% 30% 40% Load (%) NCS6S4803C 90 80 80 70 70 60 50% 60% Load (%) 70% 80% 90% 100% NCS6S4805C 90 24V 50 Efficiency (%) Efficiency (%) 80% 24V 12V 50 30 0 48V 40 30 60 24V 48V 50 40 30 20 20 10 10 0 20% 30% 40% 50% 60% Load (%) 70% 80% 90% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 110% 100% NCS6S4812C Load (%) NCS6S4815C 90 100 80 90 80 70 24V 70 48V Efficiency (%) Efficiency (%) 70% 70 60 60 60% NCS6S1215C 90 0 10% 50% Load (%) Load (%) 50 40 30 60 50 24V 48V 40 30 20 20 10 10 0 0 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 110% Load (%) 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 110% Load (%) www.murata-ps.com/support KDC_NCS6C.D05 Page 5 of 11 NCS6 Series Isolated 6W 4:1 Input Single & Dual Output DC-DC Converters EFFICIENCY VS LOAD NCS6D1212C 90 80 78 76 74 72 70 68 66 64 62 60 85 24V Efficiency (%) Efficiency (%) NCS6D1205C 12V 12V 65 60 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 110% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 110% Load (%) Load (%) NCS6D4805C 90 85 85 24V 75 12V Efficiency (%) 80 80 Efficiency (%) 24V 75 70 NCS6D1215C 24V 75 48V 70 70 65 65 60 60 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 110% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 110% Load (%) Load (%) NCS6D4812C NCS6D4815C 90 90 85 85 80 24V 75 70 48V 65 Efficiency (%) 80 Efficiency (%) 80 70 48V 65 60 60 55 55 50 24V 75 50 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 110% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 110% Load (%) Load (%) www.murata-ps.com/support KDC_NCS6C.D05 Page 6 of 11 NCS6 Series Isolated 6W 4:1 Input Single & Dual Output DC-DC Converters TEMPERATURE DERATING NCS6S1205C 6 7 5 6 5 4 3 Output Power (W) Output Power (W) NCS6S1203C 400 lfm 200 lfm 2 100 lfm 400 lfm 4 200 lfm 100 lfm 3 2 1 still air 1 still air 0 -40 -30 -20 -10 0 10 20 30 40 50 60 70 0 80 -40 -30 -20 -10 0 Ambient Temperature (C) 7 6 6 5 400 lfm 4 200 lfm 3 100 lfm 2 40 50 60 70 80 400 lfm 5 200 lfm 4 100 lfm 3 still air 1 1 0 -40 -30 -20 -10 0 10 20 30 40 50 60 70 0 -40 -30 -20 -10 0 80 10 20 30 40 50 60 70 80 Ambient Temperature (C) Ambient Temperature (C) NCS6S4803C NCS6S4805C 7 6 6 Output Power (W) 5 Output Power (W) 30 2 still air 400 lfm 4 200 lfm 100 lfm 3 2 5 1 0 -40 -30 -20 -10 0 0 20 30 40 50 60 70 200 lfm 3 1 10 400 lfm 4 100 lfm 2 still air still air -40 -30 -20 -10 0 80 Ambient Temperature (C) 10 20 30 40 50 60 70 80 Ambient Temperature (C) NCS6S4812C NCS6S4815C 7 7 6 6 400 lfm Output Power (W) Output Power (W) 20 NCS6S1215C 7 Output Power (W) Output Power (W) NCS6S1212C 5 10 Ambient Temperature (C) 100 lfm 200 lfm 4 3 2 5 4 400 lfm 3 200 lfm 2 still air 1 100 lfm 1 still air 0 -40 -30 -20 -10 0 10 20 30 40 Ambient Temperature (C) 50 60 70 80 0 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 Ambient Temperature (C) www.murata-ps.com/support KDC_NCS6C.D05 Page 7 of 11 NCS6 Series Isolated 6W 4:1 Input Single & Dual Output DC-DC Converters TEMPERATURE DERATING NCS6D1212C 7 7 6 6 5 Output Power (W) Output Power (W) NCS6D1205C 400 lfm 4 200 lfm 3 100 lfm 400 lfm 200 lfm 4 100 lfm 3 still air 2 2 still air 1 1 0 0 -40 -30 -20 -10 0 10 20 30 40 50 Ambient Temperature (C) 60 70 80 -40 -30 -20 -10 0 10 20 30 40 50 6 6 5 Output Power (W) 7 400 lfm 4 200 lfm 3 100 lfm 80 5 400 lfm 200 lfm 4 3 100 lfm 2 2 still air 1 still air 1 -40 -30 -20 -10 0 10 20 30 40 50 60 70 0 80 -40 -30 -20 -10 0 Ambient Temperature (C) 10 20 30 40 50 60 70 80 Ambient Temperature (C) NCS6D4812C NCS6D4815C 7 7 6 6 5 Output Power (W) Output Power (W) 70 NCS6D4805C 7 0 60 Ambient Temperature (C) NCS6D1215C Output Power (W) 5 400 lfm 4 200 lfm 3 100 lfm 5 400 lfm 4 200 lfm 3 100 lfm 2 2 still air 1 1 0 still air 0 -40 -30 -20 -10 0 10 20 30 40 Ambient Temperature (C) 50 60 70 80 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 Ambient Temperature (C) www.murata-ps.com/support KDC_NCS6C.D05 Page 8 of 11 NCS6 Series Isolated 6W 4:1 Input Single & Dual Output DC-DC Converters EMC FILTERING AND SPECTRA FILTERING The module includes a basic level of filtering, the following table shows the additional input capacitor typically required to meet EN 55022 Curve A Quasi-Peak EMC limit, as shown in the below plots. NCS6D1205C NCS6D1212C NCS6D1215C NCS6D4805C NCS6D4812C NCS6D4815C 2.2F none none 10F 10F 10F NCS6S1203C NCS6S1205C NCS6S1212C NCS6S1215C NCS6S4803C NCS6S4805C NCS6S4812C NCS6S4815C 4.7F 4.7F 10F 10F 4.7F 10F 10F 10F NCS6D1212C 90 90 80 80 Conducted E mis s ions (dB uV ) C onducted E mis s ions (dB uV ) NCS6D1205C 70 60 50 40 30 20 60 50 40 30 20 10 10 0 100000 70 1000000 10000000 0 100000 10000000 1000000 F requency (Hz) 90 80 80 70 60 50 40 30 20 1000000 10000000 100000000 10000000 100000000 60 50 40 30 20 0 100000 100000000 NCS6D4812C 1000000 F requency (Hz) NCS6D4815C 90 90 C onducted E mis s ions (dB uV ) C onducted E mis s ions (dB uV ) 10000000 70 F requency (Hz) 80 70 60 50 40 30 80 70 60 50 40 30 20 20 10 10 0 100000 100000000 10 10 0 100000 10000000 NCS6D4805C 90 C onducted E mis s ions (dB uV ) C onducted E mis s ions (dB uV ) NCS6D1215C F requency (Hz) 1000000 F requency (Hz) 10000000 100000000 0 100000 1000000 F requency (Hz) www.murata-ps.com/support KDC_NCS6C.D05 Page 9 of 11 NCS6 Series Isolated 6W 4:1 Input Single & Dual Output DC-DC Converters EMC FILTERING AND SPECTRA (continued) NCS6S1203C NCS6S1205C 90 C onducted E mis s ions (dB uV ) C onducted E mis s ions (dB uV ) 90 80 70 60 50 40 30 70 60 50 40 30 20 20 10 10 0 100000 1000000 F requency (Hz) 10000000 0 100000 100000000 NCS6S1212C F requency (Hz) 10000000 100000000 90 C onducted E mis s ions (dB uV ) 80 70 60 50 40 30 80 70 60 50 40 30 20 20 10 10 0 100000 1000000 NCS6S1215C 90 C onducted E mis s ions (dB uV ) 80 1000000 F requency (Hz) 10000000 0 100000 100000000 NCS6S4803C 1000000 F requency (Hz) 10000000 100000000 NCS6S4805C 90 80 C onducted E mis s ions (dB uV ) C onducted E mis s ions (dB uV ) 90 70 60 50 40 30 80 70 60 50 40 30 20 20 10 10 0 100000 1000000 10000000 0 100000 100000000 1000000 10000000 100000000 10000000 F requency (Hz) 100000000 F requency (Hz) F requency (Hz) NCS6S4812C NCS6S4815C C onducted E mis s ions (dB uV ) C onducted E mis s ions (dB uV ) 90 80 70 60 50 40 30 90 80 70 60 50 40 30 20 20 10 10 0 100000 1000000 10000000 F requency (Hz) 100000000 0 100000 1000000 www.murata-ps.com/support KDC_NCS6C.D05 Page 10 of 11 NCS6 Series Isolated 6W 4:1 Input Single & Dual Output DC-DC Converters PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS PIN CONNECTIONS NCS6XXXXXC XYYWW 20.0 (0.787) 32.0 (1.26) Pin Function Single Dual 2 3 9 11 14 16 22 23 -VIN -VIN No pin N/C +VOUT -VOUT +VIN +VIN -VIN -VIN OV -VOUT +VOUT OV +VIN +VIN 5.0 (0.197) TUBE OUTLINE DIMENSIONS 10.0 (0.394) 1.000.15 (0.040.006) 2.0 (0.079) 6.50 (0.256) 0.50 (0.020) 23.0 (0.906) 0.5 (0.02) 8.5 (0.335) 15.24 (0.600) 5.08 (0.200) 2 3 20.5 (0.807) Tube length 520 (20.47) All dimensions in mm (inches) 0.25 (0.010). 2.36 (0.093) 9 11 Quantity: 15 RECOMMENDED FOOTPRINT DETAILS 15.24 (0.600) 8 HOLES 1.0mm 16 14 O 23 22 2.54 (0.1) 2.54 (0.100) 4.57 (0.180) All dimensions in mm (inches) 0.5 (0.020) except pin to pin tolerance 0.25 (0.010). All pins on a 2.54 (0.100) pitch and within 0.25 (0.010) of true position. Weight: 17g The copper case is connected to the output (-VOUT) pin. Care is needed in the design of this circuit board on which the converter is mounted. Top side tracks must not contact the edge of the case on the underside of the unit. Please note that from 2010 onwards, you may receive either a blue or a black case. 2.54 (0.1) All dimensions in mm (inches) 0.25 ( 0.010). 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. (c) 2018 Murata Power Solutions, Inc. www.murata-ps.com/support KDC_NCS6C.D05 Page 11 of 11