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| NMF SERIES Isolated 1W Regulated Single Output DC/DC Converters SELECTION GUIDE Order Code NMF0505DC NMF0509DC NMF0512DC NMF0515DC NMF0505SC NMF0509SC NMF0512SC NMF0515SC NMF1205SC NMF1209SC NMF1212SC NMF1215SC NMF1205SC NMF1209SC NMF1212SC NMF1215SC NMF2405DC NMF2409DC NMF2412DC NMF2415DC NMF2405SC NMF2409SC NMF2412SC NMF2415SC NMF4805DC NMF4809DC NMF4812DC NMF4815DC NMF4805SC NMF4809SC NMF4812SC NMF4815SC Nominal Input Voltage V 5 5 5 5 5 5 5 5 12 12 12 12 12 12 12 12 24 24 24 24 24 24 24 24 48 48 48 48 48 48 48 48 Output Voltage V 5 9 12 15 5 9 12 15 5 9 12 15 5 9 12 15 5 9 12 15 5 9 12 15 5 9 12 15 5 9 12 15 Output Current mA 100 100 83 67 100 100 83 67 100 100 83 67 100 100 83 67 100 100 83 67 100 100 83 67 100 100 83 67 100 100 83 67 Power Out mW 500 900 1000 1000 500 900 1000 1000 500 900 1000 1000 500 900 1000 1000 500 900 1000 1000 500 900 1000 1000 500 900 1000 1000 500 900 1000 1000 Efficiency % 50 62 62 62 50 62 62 62 50 62 62 62 50 62 62 62 50 62 62 62 50 62 62 62 50 62 62 62 50 62 62 62 Isolation MTTF1 Package Capacitance Style pF kHrs 37 42 46 52 37 42 46 52 62 82 98 108 62 82 98 108 69 106 129 151 69 106 129 151 51 86 108 127 51 86 108 127 1307 825 512 316 1307 825 512 316 456 379 290 218 456 379 290 218 843 613 422 279 843 613 422 279 200 283 162 135 200 283 162 135 DIP FEATURES n compliant RoHS n Output regulation <1.5% n Output programmable n Power density 0.85W/cm3 n Single isloated output n & DIP package styles SIP n 94V-0 package material UL n heatsink required No n Footprint from 1.17cm2 n 1kVDC isolation n 12V, 24V & 48V input 5V, n 9V, 12V & 15V output 5V, n construction SMD n encapsulated with toroidal magnetics Fully n external components required No n MTTF up to 2.4 million hours n mounting PCB SIP DIP SIP DIP SIP DIP SIP DESCRIPTION The NMF series of DC/DC converters is used where a tightly regulated supply is required. They are ideal for situations where the intput voltage is not tightly controlled. The output trim pin makes the device particularly suitable for applications requiring a programmable output voltage. The 5V output version can be used to give a regulated output, adjustable between 1.2V and 5.0V with a single resistor. 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. ABSOLUTE MAXIMUM RATINGS Short-circuit protection2 Lead temperature 1.5mm from case for 10 seconds Internal power dissipation Input voltage VIN, NMF05 types Input voltage VIN, NMF12 types Input voltage VIN, NMF24 types Input voltage VIN, NMF48 types 1 second 300C 450mW 7V 15V 28V 54V 1. Calculated using MIL-HDBK-217F with nominal input voltage at full load. 2. Supply voltage must be discontinued 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_NMFC.4 Page 1 of 4 NMF SERIES Isolated 1W Regulated Single Output DC/DC Converters INPUT CHARACTERISTICS Parameter Voltage range Conditions Continuous operation, 5V input types Continuous operation, 12V input types Continuous operation, 24V input types Continuous operation, 48V input types MIN. 4.75 11.4 22.8 45.6 TYP. 5 12 24 48 MAX. 5.25 12.6 25.2 50.4 Units V OUTPUT CHARACTERISTICS Parameter Voltage set point accuracy Rated power 1 Line regulation Load regulation Ripple & noise Conditions 100% load TA= 0C to 70C High VIN to low VIN 10% load to rated load BW=DC to 20MHz, all output types MIN. TYP. MAX. 5 1 0.25 1.5 60 Units % W %/% % mV p-p 0.9 ISOLATION CHARACTERISTICS Parameter Isolation test voltage Resistance Conditions Flash tested for 1 second Viso= 500VDC MIN. 1000 0.1 TYP. MAX. Units VDC G GENERAL CHARACTERISTICS Parameter Switching frequency Conditions All input types MIN. TYP. 90 MAX. Units kHz TEMPERATURE CHARACTERISTICS Parameter Specification Case temperature above ambient Storage Cooling Conditions All output types MIN. 0 TYP. 38 MAX. 70 Units C -55 Free air convection 150 TEMPERATURE DERATING GRAPH 1.5 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 the SIP package type is Tin Plate, Hot Dipped over Matte Tin over Nickel Preplate. The DIP types are Matte Tin over Nickel Preplate. Both types in this series are backward compatible with Sn/Pb soldering systems. For further information, please visit www.cd4power.com/rohs Output Power (W) 1.0 70C 0.5 Safe Operating Area 125C 0 0 50 100 Ambient Temperature (C) 150 OUTPUT VOLTAGE ADJUSTMENT (for 5V output variants) The trimming (adjust) input on the device allows output voltage adjustment from 1.2V to 3.3VDC by using a resistor as shown here. The table below provides RTRIM values for the most commonly required output voltages. For applications not requiring the TRIM function, this pin must be left unconnected for normal regulated output. +VIN VOUT VOUT SET (V) 1.2 1.5 2.0 2.1 2.2 2.5 3.3 RTRIM () 0 64 224 263 304 448 1071 NMF TRIM RTRIM -VOUT 1. See derating graph. www.cd4power.com KDC_NMFC.4 Page 2 of 4 NMF SERIES Isolated 1W Regulated Single 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. C&D Technologies NMF 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?" For a part holding no specific agency approvals, such as the NMF series, 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 NMF series has toroidal isolation transformers, 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. PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS PIN CONNECTIONS - 14 PIN DIP DIP package SIP package Pin 1 9 10 11 14 Function -VIN +VOUT TRIM -VOUT +VIN PIN CONNECTIONS - 7 PIN SIP Pin 1 2 4 5 6 Function +VIN -VIN -VOUT TRIM +VOUT * 0.303 (7.70) for 48V variants ** 0.295 (7.50) for 48V variants 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. Weight: 2.4g (DIP) 2.1g (SIP) except for NMF24XX and NMF48XX DIP & SIP : 2.9g www.cd4power.com KDC_NMFC.4 Page 3 of 4 NMF SERIES Isolated 1W Regulated Single Output DC/DC Converters PACKAGE SPECIFICATIONS (continued) RECOMMENDED FOOTPRINT DETAILS 14 Pin DIP Package 7 Pin SIP Package All dimensions in inches 0.01 (mm 0.25mm). TUBE OUTLINE DIMENSIONS 14 Pin DIP Tube 7 Pin SIP Tube All dimensions in inches 0.01 (mm 0.25mm). Tube length (14 Pin DIP) : 20.47 (520mm 2mm). Tube length (7 Pin SIP) : 20.47 (520mm 2mm). Tube Quantity : 25 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 website to ensure that you have the current and complete specification for your product before use. (c) C&D Technologies (NCL) Limited 2005 KDC_NMFC.4 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 C&D Technologies (NCL) Ltd Tanners Drive, Blakelands North Milton Keynes MK14 5BU, UK Tel: +44 (0)1908 615232 Fax: +44 (0)1908 617545 email: MK@cdtechno.com C&D Technologies, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151, USA Tel: +1 (508) 339-3000 Fax: +1 (800) 233-2765 email: sales@cdtechno.com www.cd4power.com KDC_NMFC.4 Page 4 of 4 |
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