NDY Series www.murata-ps.com Isolated 3W Wide Input DC/DC Converters SELECTION GUIDE Order Code FEATURES UL 60950 recognized RoHS compliant Industry standard footprint Efficiency to 82% Power density 0.90W/cm3 2:1 wide input range Single isolated output Short circuit protection NDY0505C NDY0509C NDY0512C NDY0515C NDY1205C NDY1209C NDY1212C NDY1215C NDY2403C NDY2405C NDY2409C NDY2412C NDY2415C NDY4803C NDY4805C NDY4809C NDY4812C NDY4815C Nominal Input Voltage V (nom.) Rated Output Voltage V Min. Load mA mA 5 5 5 5 12 12 12 12 24 24 24 24 24 48 48 48 48 48 5 9 12 15 5 9 12 15 3.3 5 9 12 15 3.3 5 9 12 15 100-150 55-83 42-62 33-50 150 83 62 50 227 150 83 62 50 227 150 83 62 50 400-600 222-333 166-250 133-200 600 333 250 200 909 600 333 250 200 909 600 333 250 200 Output Current 1 Full Load Input Efficiency 2 Isolation Current MTTF 3 (Min.) Capacitance Full load mA % pF kHrs 615 563 548 533 362 320 316 308 178 174 156 154 150 87 87 78 77 76 66 72 71 73 71 78 78 79 70 70 78 80 82 71 73 80 81 81 40 52 43 44 36 52 44 47 30 36 52 44 54 30 35 52 44 53 1939 1926 1907 1924 1928 1916 1897 1914 1671 1673 1663 1644 1657 1676 1668 1663 1648 1661 Low profile 24 pin case UL 94V-0 package material Operating temperature range -40ºC to 85ºC No heatsink required INPUT CHARACTERISTICS Parameter Voltage range Footprint 4.73cm2 5V, 12V, 24V & 48V input 3.3V, 5V, 9V, 12V & 15V output Internal SMD construction Fully encapsulated DESCRIPTION The NDY series is a range of low profile DC/DC converters offering a single regulated output over a 2:1 input voltage range. All parts deliver 3W output power up to 85ºC without heatsinking, except the 4.5V to 9V input voltage range which should be derated to 2W at the lower input voltage. A flyback oscillator design with isolated feedback is used to give regulation over the full operating range of 25% to 100% of full load. It is strongly recommended that external capacitors be used on input and output to guarantee performance over full load and input voltage range. Reflected ripple current 2 Conditions Min. Typ. Max. All NDY05XX All NDY12XX All NDY24XX All NDY48XX NDY2403 NDY4803 All NDY05XX All NDY12XX All other NDY24XX All other NDY48XX 4.5 9 18 36 5 12 24 48 180 140 400 150 290 100 9 18 36 72 360 290 500 170 360 127 Units VDC mA p-p ABSOLUTE MAXIMUM RATINGS Short-circuit protection Lead temperature 1.5mm from case for 10 seconds Minimum load Input voltage 05 types Input voltage 12 types Input voltage 24 types Input voltage 48 types Internal dissipation Continuous 300°C 25% of rated load 10V 20V 40V 80V 1.7W 1. Refer to power derating graph. 2. Measured at full load with external input/output capacitors, refer to filter circuit 1. 3. Calculated using MIL-HDBK-217F with nominal input voltage at full load (ground benign) at 25°C. 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_NDY.F03 Page 1 of 4 NDY Series Isolated 3W Wide Input DC/DC Converters OUTPUT CHARACTERISTICS Parameter Conditions Voltage set point accuracy With external input/output capacitors Low line to high line, 3.3V output with external input/output capacitors Low line to high line, all other outputs with external input/output capacitors 25% load to 100% load, 3.3V output with external input/output capacitors 25% load to 100% load, all other outputs with external input/output capacitors BW = 20Hz to 300kHz, 3.3V output with external input/output capacitors BW = 20Hz to 300kHz, all other outputs with external input/output capacitors BW = DC to 100MHz, 3.3V output with external input/output capacitors BW = DC to 20MHz, all other outputs with external input/output capacitors Line regulation Load regulation Ripple1 Noise1 GENERAL CHARACTERISTICS Parameter Conditions Switching frequency 100% load VIN nominal 3.3V output 25% load VIN nominal 3.3V output 100% load VIN nominal, all other outputs 25% load VIN nominal, all other outputs Min. Min. Typ. Max. Units ±1 0.05 0.05 0.6 0.2 80 5 % % % % % 50 ±5 0.25 0.5 1.0 0.5 120 10 180 100 Typ. Max. Units 220 560 220 560 kHz Max. Units 85 130 ºC Max. Units 160 290 80 290 mV rms mV p-p TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Operation Storage Cooling Ambient temperature -40 -50 Typ. Free air convection ISOLATION CHARACTERISTICS Parameter Conditions Min. Isolation test voltage Resistance Flash tested for 1 second Viso=500VDC 1000 1 Typ. VDC GΩ 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 NDY 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?” The NDY series 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 NDY series has an EI 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. SAFETY APPROVAL The NDY series has been recognised by Underwriters Laboratory (UL) to UL 60950 for functional insulation for a maximum case temperature limit of 130ºC (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 G1123, any NDY parts manufactured before this date code should not be considered UL 60950 recognized. Any NDY that is UL recognized will be printed with the UL logo. 1. For lower ripple refer to circuit for reduced ripple. www.murata-ps.com/support KDC_NDY.F03 Page 2 of 4 NDY Series Isolated 3W Wide Input DC/DC Converters APPLICATION NOTES Recommended input & output capacitors Although these converters will work without external capacitors, they are necessary in order to guarantee the full parametric performance over the full line and load range. All parts have been tested and characterized using the following values and test circuit. Input Voltage 5V, 12V 24V, 48V CIN 100μF, 25V (0.25Ω at 100KHz) 10μF, 100V (1.5Ω at 100KHz) Output Voltage 3.3V 5V, 12V, 15V COUT 100μF, 25V (0.25Ω at 100KHz) LOUT MPS# - 24100C Not required Test circuit, 5V, 12V and 15V output + VOUT + VIN CIN NDY COUT - VOUT - VIN Recommended circuit for reduced ripple 3.3V output LOUT + VOUT + VIN CIN NDY COUT - VOUT - VIN Output load The minimum rated load across the whole input voltage range is 25% of the full load output. It is important to take care that the load does not fall below this as the output ripple will greatly increase. While this condition will not harm the device the resultant increase in output ripple could cause customers’ application to malfunction. Output Power (W) NDY05 POWER DERATING CURVE 5 RoHS COMPLIANCE INFORMATION 4 This series is compatible with RoHS soldering systems with a peak wave solder temperature of 300ºC for 10 seconds. The pin termination finish on this product series is Bright Tin. The series is backward compatible with Sn/Pb soldering systems. 3 2 1 0 4.5 5 6 7 Input voltage (V) 8 9 For further information, please visit www.murata-ps.com/rohs www.murata-ps.com/support KDC_NDY.F03 Page 3 of 4 NDY Series Isolated 3W Wide Input DC/DC Converters PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS PIN CONNECTIONS (TOP VIEW) 32.26 (1.27) 14.66 (0.577) 7*/ 7*/ NDY4815C XYYWW 7.00 (0.276) 5.00 (0.197) 4.00 (0.157) 0.84 (0.033) 0.54 (0.021) 2.54 (0.10) 7065 7065 7065 7065 7*/ 7*/ RECOMMENDED FOOTPRINT DETAILS 27.94 (1.10) 1.45 (0.057) Ø 1.30 (0.051) 2.54 (0.10) 0.30 (0.012) 0.20 (0.008) 16.35 (0.644) MAX 2.54 (0.10) Weight: 6.2g (3.3V: 6.7g) Unless otherwise stated all dimensions in mm ±0.5mm (inches ±0.01). All dimensions in mm ±0.25mm (inches ±0.01). All pins on a 2.54 (0.1) pitch and within ± 0.25 (0.01) of true position. TUBE OUTLINE DIMENSIONS 20.70±0.55 (0.815±0.022) 16.70±0.80 (0.657±0.031) 11.70±0.80 (0.461±0.031) 5.50±0.25 (0.217±0.010) 16.70±0.55 (0.657±0.022) 0.268±0.022 (6.80±0.55) 0.60±0.15 (0.024±0.006) Unless otherwise stated all dimensions in mm ±0.5mm (inches ±0.01). Tube length : 520mm ±2mm (20.47±0.079). Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. ISO 9001 and 14001 REGISTERED Tube Quantity : 15 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. © 2013 Murata Power Solutions, Inc. www.murata-ps.com/support KDC_NDY.F03 Page 4 of 4