NMS SERIES 6kVDC Isolated 2W Dual Output DC/DC Converters SELECTION GUIDE Order Code FEATURES n RoHS compliant n UL1950 recognized n Efficiency to 82% Nominal Input Voltage NMS0505C NMS0509C NMS0512C NMS0515C NMS1205C NMS1209C NMS1212C NMS1215C Output Voltage Output Current Efficiency Isolation Capacitance MTTF1 (V) (V) (mA) % pF kHrs 5 5 5 5 12 12 12 12 5 9 12 15 5 9 12 15 200 111 83 67 200 111 83 67 74 76 77 78 78 81 82 82 1.8 1.9 2.0 2.1 1.9 2.0 2.1 2.2 747 327 169 93 365 224 136 82 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. n Power density up to 0.44W/cm3 n Dual outputs n Low profile package n UL 94V-0 package material n No heatsink required n Footprint 4.75cm2 n 6kVDC isolation n 5V & 12V input INPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Voltage range Continuous operation, 5V input types Continuous operation, 12V input types 4.5 10.8 5 12 5.5 13.2 V Conditions TA=0C to 70C Min. Typ. Max. Units See tolerance envelope High VIN to low VIN 10% load to rated load, 5V output types 10% load to rated load, 9V output types 10% load to rated load, 12V output types 10% load to rated load, 15V output types BW=DC to 20MHz, all output types -7.5 2 10 1.2 15 15 15 15 200 W % %/% mV p-p Max. Units OUTPUT CHARACTERISTICS Parameter Rated Power2 Voltage Set Point Accuracy Line regulation n 5V, 9V, 12V and 15V output n Internal SMD construction n Fully encapsulated with toroidal magnetics n MTTF up to 747 kHrs n PCB mounting DESCRIPTION The NMS series of DC/DC converters are UL1950 recognized which makes them ideal for all telecom and safety applications where approved isolation is required. The low profile package allows mounting in rack systems without risk of touching other boards. The output configuration allows all of the rated power to be drawn from a single pin provided the total load does not exceed 2 watts. The devices feature low noise and low isolation capacitance suiltable for applications in high noise environments, e.g. heavy electrical machine interface. Load Regulation Ripple and Noise 1.0 10 6 6 6 % ISOLATION CHARACTERISTICS Parameter Conditions Min. Isolation test voltage Resistance Flash tested for 1 second Viso= 500VDC 6000 Typ. VDC G 10 GENERAL CHARACTERISTICS Parameter Conditions Switching frequency All input types Min. Typ. 35 Max. Units kHz ABSOLUTE MAXIMUM RATINGS Short-circuit protection3 Lead temperature 1.5mm from case for 10 seconds Internal power dissipation Input voltage VIN, NMS05 types Input voltage VIN, NMS12 types 1 second 300C 900mW 7V 15V 1.Calculated using MIL-HDBK-217F with nominal input voltage at full load. 2. See derating graph. 3. Supply voltage must be disconnected at the end of the short circuit duration. All specifications typical at TA=25C, nominal input voltage and rated output current unless otherwise specified. www.cd4power.com KDC_NMSC.5 Page of 3 NMS SERIES 6kVDC Isolated 2W Dual Output DC/DC Converters TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Specification Storage Case Temperature above ambient Cooling All output types 0 -50 All output types Free air convection TEMPERATURE DERATING GRAPH 0 +5% VNOM 70C Safe Operating Area 0 60 20 40 Ambient Temperature (C) 80 Output Voltage Output Power (W) +10% 2.0 Max. Units 70 130 32 C TOLERANCE ENVELOPE 3.0 1.0 Typ. Typical L oad Line +2.5% -2.5% -7.5% 10 75 50 25 Output Load Current (%) 100 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. C&D Technologies NMS series of dc/dc converters are all 100% production tested at their stated isolation voltage. This is 6kVDC for 1 second. A question commonly asked is, "What is the continuous voltage that can be applied across the part in normal operation?" The NMS series has been recognized by Underwiters Laboratory to a working voltage of 300Vrms for Supplementary Insulation system and 150Vrms for Reinforced Insulation systems. 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 NMS series have toroidal isolation transformers, with an additional insulation system between the enameled wire primary and secondary windings. While manufactured parts can 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. www.cd4power.com KDC_NMSC.5 Page of 3 NMS SERIES 6kVDC Isolated 2W Dual Output DC/DC Converters PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS PIN CONNECTIONS ."9 9::88J /.4$ 9::88J ."9 Function 1 2 8 9 10 11 12 13 14 15 16 17 23 24 +VIN -VIN -VOUT NC OV NC +VOUT +VOUT NC OV NC -VOUT NC NC ."9 Weight: 7.5g All dimensions in inches 0.01 (mm 0.25mm). All pins on a 0.1 (2.54) pitch and within 0.01 (0.25) of true position. RECOMMENDED FOOTPRINT DETAILS TUBE OUTLINE DIMENSIONS Pin /.4$ Unless otherwise stated all dimensions in inches 0.01 (mm) 0.5mm. Unless otherwise stated all dimensions in inches 0.01 (mm) 0.5mm. Tube length : 20.470.079 (520mm 2mm). Tube Quantity : 15 RoHS COMPLIANCE INFORMATION This series is compatible with RoHS soldering systems with a peak wave solder temperature of 300C for 10 seconds. The pin termination finish on this product series is Matte Tin over Nickel Preplate. The series is backward compatible with Sn/Pb soldering systems. For further information, please visit www.cd4power.com/rohs C&D Technologies (NCL) Limited reserve the right to alter or improve the specification, internal design or manufacturing process at any time, without notice. Please check with your supplier or visit our web site to ensure that you have the current and complete specification for your product before use. (c) C&D Technologies (NCL) Limited 2006 KDC_NMSC.5 No part of this publication may be copied, transmitted or stored in a retrieval system or reproduced in any way including, but not limited to, photography, photocopy, magnetic or other recording means, without prior written permission from C&D Technologies (NCL) Limited. Instructions for use are available from www.cd4power.com www.cd4power.com C&D Technologies (NCL) Ltd Tanners Drive, Blakelands North Milton Keynes MK14 5BU, UK C&D Technologies, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151, USA Tel: +44 (0)1908 615232 Fax: +44 (0)1908 617545 email: mk@cdtechno.com Tel: +1 (508) 339-3000 Fax: +1 (800) 233-2765 email: sales@cdtechno.com KDC_NMSC.5 Page of 3