NKE0305S

NKE SERIES Isolated Sub-Miniature 1W Single Output DC-DC Converters SELECTION GUIDE Nominal Input Voltage Output Voltage Output Current Input Current at Rated Load Efficiency Isolation Capacitance MTTF1 OrderCode† NKE0303S NKE0305S NKE0503S NKE0505SE NKE0505S NKE0509S (V) 3.3 3.3 5 5 5 5 5 5 12 12 12 12 (V) 3.3 5 3.3 5 5 9 12 15 5 9 12 15 (mA) 303 200 303 200 200 111 83 66 200 111 83 66 (mA) 400 400 270 250 289 266 260 256 117 107 105 103 (%) 75 76 75 78 69 75 77 78 71 78 79 81 (pF) 30 35 40 34 28 29 30 32 35 50 57 60 kHrs 1234 632 619 419 2414 1173 633 360 620 488 360 252 FEATURES s New Sub-Miniature SIP & DIP Styles s 3kVDC Isolation s Efficiency to 81% s Wide Temperature performance at full 1 Watt load, –40°C to 85°C s Increased Power Density to 1.95W/cm3 s UL 94V-0 Package Material s Footprint 0.69cm2 s Single Isolated Output s Industry Standard Pinout s 3.3V, 5V & 12V Input s 3.3V, 5V, 9V, 12V and 15V Output s No Heatsink Required s Internal SMD Construction s Fully Encapsulated with Toroidal Magnetics s No External Components Required s MTTF up to 2.4 Million hours s Custom Solutions Available s No Electrolytic or Tantalum Capacitors DESCRIPTION The NKE sub-miniature series of DC-DC Converters is particularly suited to isolating and/or converting DC power rails. A smaller package size, improved efficiency, lower output ripple and 3kVDC isolation capability through state of the art packaging and improved technology. The galvanic isolation allows the device to be configured to provide an isolated negative rail in systems where only positive rails exist. The wide temperature range guarantees startup from –40°C and full 1 watt output at 85°C. NKE0512S NKE0515S NKE1205S NKE1209S NKE1212S NKE1215S † For DIP package style replace suffix S with D, eg NKE0303D. 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. INPUT CHARACTERISTICS Parameter Conditions MIN TYP MAX Units Voltage Range Reflected Ripple Current Continuous operation, 3.3V input types 2.97 Continuous operation, 5V input types 4.5 Continuous operation, 12V input types 10.8 3.3 5.0 12.0 40 3.63 5.5 13.2 V 60 mA p-p OUTPUT CHARACTERISTICS Parameter Conditions TYP MAX Units Rated Power2 Voltage Set Point Accuracy Line regulation TA = –40°C to 85°C See tolerance envelope 1.0 10 12 7.5 6.5 6.0 40 77 43 35 32 1 W High VIN to low V IN 10% load to rated load, 3.3V output types 10% load to rated load, 5V output types Load Regulation 3 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, 3.3V output types BW=DC to 20MHz, 5V output types Ripple and Noise BW=DC to 20MHz, 9V output types BW=DC to 20MHz, 12V output types BW=DC to 20MHz, 15V output types 1.2 15 15 10 9.5 8.5 80 100 90 65 55 %/% % mV p-p ABSOLUTE MAXIMUM RATINGS Short circuit duration 4 Internal power dissipation Lead temperature 1.5mm from case for 10 seconds Input voltage V in NKE03 types Input voltage V in NKE05 types Input voltage V in NKE12 types 1 2 3 4 Calculated using MIL-HDBK-217F with nominal input voltage at full load. See derating curve. 12V input types have typically 3% less load regulation change. 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. 1 second 530mW 300°C 5.5V 7V 15V www.dc-dc.com NKE SERIES Isolated Sub-Miniature 1W Single Output DC-DC Converters ISOLATION CHARACTERISTICS Parameter Conditions MIN TYP MAX Units TEMPERATURE CHARACTERISTICS 3000 10 VDC GΩ 2.0 MIN TYP MAX Units Isolation Test Voltage Resistance Flash tested for 1 second Viso=500VDC Temperature Derating Graph NKE 0303D/S, 0305D/S, 0503D/S, 0505DE/SE Types GENERAL CHARACTERISTICS Parameter Conditions Switching Frequency All input types 115 kHz 1.5 1.0 85°C TEMPERATURE CHARACTERISTICS Parameter Conditions MIN TYP MAX Units Specification Storage Case Temperature above ambient Cooling All output types 0505D/S, 1205D/S All other output types Free air convection -40 -50 85 130 41 32 °C °C °C 0.5 0 -40 Safe Operating Area 0 50 100 150 Ambient Temperature (°C) Temperature Derating Graph All other types PERFORMANCE CHARACTERISTICS tolerance envelope (3.3V output types) + 9% +1% VNOM -7% +1% –7% –15% tolerance envelope (all other types) +10% +5% VNOM +2.5% –2.5% –7 .5% 2.0 1.5 1.0 0.5 0 85°C Safe Operating Area 120°C 10 25 Output Load Current (%) 50 75 100 10 25 Output Load Cur rent (%) 50 75 100 -40 0 50 100 150 Ambient Temperature (°C) MECHANICAL DIMENSIONS 4 Pin SIP Package Style 11.48 1.25 2.18±0.50 NKE0505S 6.00 7.46 XYYWW 7.62 0.30 0.20 4 Pin SIP PIN 1 GND 2 VIN 3 0V 4 +V 8 Pin DIP PIN 1 GND 4 VIN 5 +V 7 0V Weight:1.09g 4.60 3.60 0.55 0.45 1 2 3 4 0.50±0.05 7.62 8 Pin DIP Package Style 11.50 2.54 1.09 1.94 NKE0505D XYYWW 9.80 1 5.40 4 0.30 0.20 4.60 3.60 7.62 7 0.50±0.05 5 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 NKE.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.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: info@cdtechno-ncl.com 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: info@us.cdtechno-ncl.com