NMS SERIES 6kVDC Isolated 2W Dual Output DC-DC Converters SELECTION GUIDE Nominal Input Voltage Output Voltage Output Current Efficiency Isolation Capacitance MTTF 1 Order Code (V) (V) (mA) (%) (pF) kHrs NMS0505 5 ±5 ±200 74 1.8 747 NMS0509 5 ±9 ±111 76 1.9 327 NMS0512 5 ±12 ±83 77 2.0 169 NMS0515 5 ±15 ±67 78 2.1 93 NMS1205 12 ±5 ±200 78 1.9 365 NMS1209 12 ±9 ±111 81 2.0 224 NMS1212 12 ±12 ±83 82 2.1 136 NMS1215 12 ±15 ±67 82 2.2 82 FEATURES ■ BS EN 60950 Certified ■ UL 1950 Recognised ■ 6kVDC Isolation ■ Dual Outputs ■ Low Profile Package ■ Efficiency to 80% ■ Power Density 0.48W/cm 3 ■ 5V & 12V Input ■ 5V, 9V, 12V & 15V Output ■ Footprint 4.75cm2 ■ UL 94V-0 Package Material ■ No Heatsink required 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. ■ Internal SMD Construction ■ Toroidal Magnetics ■ Fully Encapsulated INPUT CHARACTERISTICS ■ MTTF up to 1.0 Million Hours Parameter Conditions MIN TYP MAX Units ■ PCB Mounting Voltage Range Continuous operation, 5V input types Continuous operation, 12V input types 4.5 10.8 5 12 5.5 13.2 V MIN TYP MAX Units 2 W 10 % 1.2 15 15 15 15 200 %/% ■ Custom Solutions Available DESCRIPTION The NMS Series of DC-DC Converters are UL 1950 recognised and fully certified to BS EN 60950, this 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 suitable for applications in high noise enviroments, eg heavy electrical machine interface. www.dc-dc.com OUTPUT CHARACTERISTICS Parameter Conditions Rated Power2 Voltage Set Point Accuracy Line Regulation TA= 0°C to 70°C See tolerance envelope High V IN to low V IN 10% load to rated load, 5V output types 10% load to rated load, 9V output types Load Regulation 10% load to rated load, 12V output types 10% load to rated load, 15V output types Ripple & Noise BW=DC to 20MHz, all output types –7.5 1.0 10 6 6 6 % mV p-p ABSOLUTE MAXIMUM RATINGS Short-circuit duration 3 Internal power dissipation Lead temperature 1.5mm from case for 10 seconds Input voltage V IN , NMS05 types Input voltage V IN , NMS12 types 1 second 900mW 300°C 7V 15V 1 Calculated using MIL-HDBK-217F with nominal input voltage at full load. 2 See derating curve 3 Supply voltage must be discontinued 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. NMS SERIES 6kVDC Isolated 2W Dual Output DC-DC Converters ISOLATION CHARACTERISTICS Parameter Conditions Isolation Test Voltage Resistance Flash tested for 1 second Viso=500VDC MIN TYP MAX Units 6000 VDC GΩ 10 GENERAL CHARACTERISTICS Parameter Conditions Switching Frequency All input types MIN TYP MAX Units 35 kHz TEMPERATURE CHARACTERISTICS Parameter Conditions MIN Specification Storage Case Temperature Above Ambient Cooling All output types 0 -50 All output types TYP MAX Units 70 130 °C °C 32 °C Free air convection PERFORMANCE CHARACTERISTICS tolerance envelope 4 +10% +5% +2.5% V nominal temperature derating graph 3 –2.5% 70°C 2 –7.5% Safe Operating Area 1 0 10 50 Output Load Current (%) 100 0 20 40 60 Ambient Temperature (°C) 80 MECHANICAL DIMENSIONS 24 Pin DIL Pin Connections (Top View) 32.60 max Weight: 7.5g 14.72 NMS0505 VIN 1 24 NC GND 2 23 NC –V 8 17 –V NC 9 16 NC 0V XYYWWi 9.40±0.30 0.60 max 3.90 2.16 15.24 0.55 0.45 0V 10 15 NC 11 14 NC +V 12 13 +V 0.30 0.20 2.54 16.95 All dimensions in mm XX.XX ±0.25mm. All pins on a 2.54mm pitch and within ±0.25mm of true position. 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&D Technologies (NCL) Limited 2001 NDC NMS.3 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.dc-dc.com C&D Technologies (NCL) Ltd Tanners Drive, Blakelands North Milton Keynes MK14 5BU, England Tel: +44 (0)1908 615232 Fax:+44 (0)1908 617545 email: [email protected] www: http://www.dc-dc.com C&D Technologies (NCL), Inc. 5816 Creedmoor Road, Raleigh NC 27612, USA Tel: +1 (919) 571-9405 Fax: +1 (919) 571-9262 email: [email protected]