NDS6 Series www.murata-ps.com Isolated 6W Wide Input Single & Dual Output DC/DC Converters SELECTION GUIDE Input Output Current Input Current Efficiency Voltage Output Ripple MTTF1 Order Code2 Voltage Min. ±100% 0% 100% Shut & Noise Nom. Min. Typ. Load Load Load Load Down V V A A mA mA mA mV p-p % % kHrs NDS6D2405C 24 ±5 ±0.06 ±0.6 7 300 1.1 40 80 82 NDS6D2412C 24 ±12 ±0.025 ±0.250 7 290 1.1 40 85 87 NDS6D2415C 24 ±15 ±0.020 ±0.200 7 290 1.1 45 85 87 FEATURES NDS6S2405C 24 5 0.12 1.2 4 305 1.1 40 80 82 (cid:132)(cid:3)UL 60950 recognized NDS6S2412C 24 12 0.05 0.5 5.5 290 1.1 40 84 86 NDS6S2415C 24 15 0.04 0.4 6 290 1.1 40 85 87 (cid:132)(cid:3)RoHS compliant (cid:132)(cid:3)2:1 Wide range voltage input INPUT CHARACTERISTICS (cid:132)(cid:3)Operating temperature range Parameter Conditions Min. Typ. Max. Units Voltage range All NDS6D24 & NDS6S24 types 18 24 36 V –40°C to 85°C Reflected ripple current All NDS6D24 & NDS6S24 types 7 mA p-p (cid:132)(cid:3)Short circuit protection OUTPUT CHARACTERISTICS (cid:132)(cid:3)0.2% Typical load regulation Parameter Conditions Min. Typ. Max. Units (cid:132)(cid:3)1.5kVDC Isolation ‘Hi-Pot Test’ Rated power 6 W (cid:132)(cid:3)24V Nominal input Positive & negative except NDS6D2405 negative ±2 Voltage set point accuracy output % (cid:132)(cid:3)Single & dual outputs NDS6D2405 negative output ±4 (cid:132)(cid:3)Power density 0.94W/cm3 Positive outputs 0.01 0.1 Line regulation Low line to high line % (cid:132)(cid:3)Optional remote On/Off Negative outputs 0.02 0.2 (cid:132)(cid:3)UL 94V-0 Package materials 5V outputs 0.2 1.7 10% total load to (cid:132)(cid:3)No electrolytic capacitors Load regulation 100% total load % 12V & 15V outputs 0.2 1 (cid:132)(cid:3)Low noise % voltage change on negative output 5V 5 when positive load varies from 12.5% PRODUCT OVERVIEW Cross regulation % (0.75W) to 37.5% (2.25W) with 12V & 15V 2 negative load fixed at 50% (3W) The NDS6 series of DC/DC converters offer single and dual output voltages from an input voltage range of 18-36V. The NDS6 is housed in an indus- ISOLATION CHARACTERISTICS try standard package with a standard pinout. The Parameter Conditions Min. Typ. Max. Units NDS6 is packaged in a metal case for improved Isolation test voltage Flash tested for 1 second 1500 VDC EMI shielding and is also encapsulated for supe- Resistance Viso = 1kVDC 1 GΩ rior thermal performance. Versions with optional Capacitance 225 pF remote on/off control pin are also available. Applications include telecommunications, battery ABSOLUTE MAXIMUM RATINGS powered systems, process control and distributed Short-circuit protection Continuous power systems. Internal power dissipation 2.7W Lead temperature 1.0mm from case for 10 seconds (to JEDEC JESD22-B106 ISS C) 260°C Minimum output load for specification3 10% of rated load on each output Control pin input voltage ±18V Input voltage, NDS6 24V input types 40V 1 Calculated using MIL-HDBK-217F with nominal input voltage at full load. 2 To order with optional control pin, prefix C with “E”. For example NDS6D0505EC. 3 Operation below 10% minimum load may cause increased output ripple. 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/support KDC_NDS6.E01 Page 1 of 6

NDS6 Series Isolated 6W Wide Input Single & Dual Output DC/DC Converters GENERAL CHARACTERISTICS1 Parameter Conditions Min. Typ. Max. Units Switching frequency 130 kHz 3.0 V Module ON (or pin unconnected) 0 mA Control pin input 0.8 V Module OFF 1.5 mA TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Operation -40 85 Storage -50 130 5V 29 °C Case temperature rise above ambient 100% Load, Nom VIN, Still Air, 12V & 15V 22 Thermal shutdown Case Temperature 110 APPLICATION NOTES Control Pin NDS6D Cross Regulation This provides an OFF function, which puts the converter into a low Load regulation is at its best when the positive and negative loads are balanced. When the loads power mode, when the voltage applied to the pin is less than 0.8V. are asymmetric, the negative output is not as tightly regulated as the positive output. To meet When the pin is high or un-connected, the converter is on. datasheet specification, a minimum load of 10% of output load current is required on each output. The NDS6D can be used with much lighter loading but the negative output voltage may rise above maximum datasheet specification. Output Capacitors The NDS6 series does not require output capacitors to meet datasheet specification. To meet datasheet specification, output capacitance should not exceed: Output Voltage (V) Output Capacitance (μF) 5 470 12 470 15 220 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 NDS6 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 NDS6 has been recognized 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 NDS6 series has an ER ferrite core, 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. www.murata-ps.com/support KDC_NDS6.E01 Page 2 of 6

NDS6 Series Isolated 6W Wide Input Single & Dual Output DC/DC Converters SAFETY APPROVAL The NDS6 series has been recognised by Underwriters Laboratory (UL) to UL 60950 for functional insulation in a maximum ambient temperature of 85ºC and/or case temperature limit of 120ºC (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 G1148, any NDS6 parts manufactured before this date code should not be consid- ered UL 60950 recognized. Any NDS6 that is UL recognized 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 260ºC 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 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 C2 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. Differential Mode Noise Test Schematic DC/DC Converter OSCILLOSCOPE C1 C2 C3 R1 T1 R2 + + Y INPUT SUPPLY Input Output - - R LOAD EFFICIENCY VS LOAD NDS 24V Input, Dual Output NDS 24V Input, Single Output 90 90 80 80 15V 70 15V 70 12V Efficiency (%) 34560000 12V 5V Efficiency (%) 34560000 5V 20 20 10 10 0 0 0 10 20 30 40 50 60 70 80 90 100 0 10 20 30 40 50 60 70 80 90 100 Load (%) Load (%) www.murata-ps.com/support KDC_NDS6.E01 Page 3 of 6

NDS6 Series Isolated 6W Wide Input Single & Dual Output DC/DC Converters TEMPERATURE DERATING NDS6D2405C NDS6D2412C 7 7 6 6 5 600 lfm 500 lfm 400 lfm 300 lfm 5 600 lfm 500 lfm 400 lfm 300 lfm 200 lfm 100 lfm Output Power (W) 234 12s00ti00ll lalffimmr Output Power (W) 234 still air 1 1 0 0 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 Ambient Temperature (ºC) Ambient Temperature (ºC) NDS6D2415C NDS6S2405C 7 7 6 6 600 lfm 5 600 lfm 500 lfm 400 lfm 300 lfm 200 lfm 5 500 lfm Output Power (W) 234 100 lsfmtill air Output Power (W) 234 200 l1fm00 lfm 340000 llffmm still air 1 1 0 0 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 Ambient Temperature (ºC) Ambient Temperature (ºC) NDS6S2412C NDS6S2415C 7 7 6 6 Output Power (W) 345 600 lfm 500 lfm 400 lfm 32010000 0sl f tlmlifflmlm air Output Power (W) 2345 600 lfm 500 lfm 400 lfm 300 lfm 200 lfm 100 lfmstill air 2 1 1 0 0 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 Ambient Temperature (ºC) Ambient Temperature (ºC) www.murata-ps.com/support KDC_NDS6.E01 Page 4 of 6

NDS6 Series Isolated 6W Wide Input Single & Dual Output DC/DC Converters EMC FILTERING AND SPECTRA FILTERING The module includes a basic level of filtering, typically sufficient to meet EN 55022 Curve A Quasi-Peak EMC limit, as shown in the following plots. NDS6S2405C NDS6S2412C 90 90 missions (dBuV)678000 missions (dBuV)678000 Conducted E345000 Conducted E345000 20 20 10 10 0 0 100000 1000000 10000000 100000000 100000 1000000 10000000 100000000 Frequency (Hz) Frequency (Hz) NDS6S2415C NDS6D2405C 90 90 missions (dBuV)678000 missions (dBuV)678000 Conducted E345000 Conducted E345000 20 20 10 10 0 0 100000 1000000 10000000 100000000 100000 1000000 10000000 100000000 Frequency (Hz) Frequency (Hz) NDS6D2412C NDS6D2415C 90 90 Conducted Emissions (dBuV)345678000000 Conducted Emissions (dBuV)345678000000 20 20 10 10 0 0 100000 1000000 10000000 100000000 100000 1000000 10000000 100000000 Frequency (Hz) Frequency (Hz) www.murata-ps.com/support KDC_NDS6.E01 Page 5 of 6

NDS6 Series Isolated 6W Wide Input Single & Dual Output DC/DC Converters PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS PIN CONNECTIONS Function Pin NDS6xxxxxC Single Dual 2 -VIN -VIN XYYWW 3 -VIN -VIN 0.787 (20.0) 5* On/Off On/Off 9 No pin OV 11 N/C -VOUT 14 +VOUT +VOUT 16 -VOUT OV 22 +VIN +VIN 1.26 (32.0) 23 +VIN +VIN * Optional pin TUBE OUTLINE DIMENSIONS 0.394 (10.0) 1.00±0.15 (0.04±0.006) (06.2.5506) 0.0177-0.0217 (0.45-0.55) 0.02 (0.5) 8.5 (0.335) 23.0 (0.906) 20.5 (0.807) 0.600 (15.24) Tube length 520 (20.47) 0.200 All dimensions in mm ±0.25mm (inches ±0.010). Quantity: 15 0.200 (5.08) (5.08) 0.093 * (2.36) RECOMMENDED FOOTPRINT DETAILS 2 3 5 9 11 8 HOLES 0.600 0.039 (1.0) (15.24) Ø 0.1 (2.54) 23 22 16 14 0.100 (2.54) 0.180 (4.57) Weight: 16.4g Typ. * All dimensions in mm (inches) ± 0.5 (0.020) except pin to pin tolerance ± 0.25 (0.010). 0.1 (2.54) All pins on a 2.54 (0.100) pitch and within 0.25 (0.010) of true position. 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. * Optional pin Please note that from 2010 onwards, you may receive either a blue or a black case. All dimensions in mm ±0.25mm (inches ±0.010). This product is subject to the following operating requirements Murata Power Solutions, Inc. and the Life and Safety Critical Application Sales Policy: 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. Refer to: http://www.murata-ps.com/requirements/ ISO 9001 and 14001 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. © 2015 Murata Power Solutions, Inc. www.murata-ps.com/support KDC_NDS6.E01 Page 6 of 6

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: M urata: NDS6S2405EC NDS6S2415EC NDS6S2405C NDS6S2415C NDS6S2412EC NDS6S2412C NDS6D2415EC NDS6D2412EC NDS6D2405EC NDS6D2412C NDS6D2405C NDS6D2415C