NML SERIES
Isolated 2W Single Output DC-DC Converters
SELECTION GUIDE
Nominal Input Voltage
Output Voltage
Output Current
Input Current at Rated Load
MTTF 1
Order Code
NML0505S NML0509S NML0512S
(V) 5 5 5 5 12 12 12 12
(V) 5 9 12 15 5 9 12 15
(mA) 400 222 167 133 400 222 167 133
(mA) 513 492 479 481 207 198 197 197
(%) 78 81 84 83 81 84 85 85
(pF) 19 27 32 27 28 42 46 54
kHrs 2327 1393 832 481 716 593 461 328
FEATURES s Wide Temperature performance at full 2 Watt load, –40°C to 85°C s Single Isolated Output s Pin Compatible with LME and NME Series s Industry Standard Pinout s 1kVDC Isolation s Efficiency to 85% s Power Density up to 2.01W/cm3 s 5V & 12V Input s 5V, 9V, 12V and 15V Output s Footprint from 1.05cm 2 s UL 94V-0 Package Material s No Heatsink Required s Internal SMD Construction s Toroidal Magnetics s Fully Encapsulated s No External Components Required s MTTF up to 2.9 Million hours s Custom Solutions Available s No Electrolytic or Tantalum Capacitors DESCRIPTION
The NML Series of DC-DC Converters is particularly suited to isolating and/or converting DC power rails. 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 2 watt output at 85°C. Pin compatibility with the NME and LME ensures ease of upgradeability.
NML0515S NML1205S NML1209S NML1212S NML1215S
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, 5V input types Continuous operation, 12V input types 5V input types 12V input types
4.5 10.8 20 23
5 12 33 38
5.5 13.2
V mA p-p
OUTPUT CHARACTERISTICS
Parameter Conditions MIN TYP MAX Units
Rated Power2 Voltage Set Point Accuracy Line Regulation
TA= –40°C to 85°C See tolerance envelope 1.0 7.0 4.5 4.5 3.7 96 67 59 53 76 63 53 45
2
W
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 NML0505S, BW=DC to 20MHz NML0509S, BW=DC to 20MHz NML0512S, BW=DC to 20MHz NML0515S, BW=DC to 20MHz Ripple & Noise NML1205S, BW=DC to 20MHz NML1209S, BW=DC to 20MHz NML1212S, BW=DC to 20MHz NML1215S, BW=DC to 20MHz
1.2 8.5 5.2 5.5 8.5
%/% %
200
mV p-p
ABSOLUTE MAXIMUM RATINGS
Internal power dissipation Lead temperature 1.5mm from case for 10 seconds Input voltage V IN , NML05 types Input voltage V IN , NML12 types 805mW 300°C 7V 15V
www.dc-dc.com
1 Calculated using MIL-HDBK-217F with nominal input voltage at full load. 2 See derating curve All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
NML SERIES
Isolated 2W Single Output DC-DC Converters
ISOLATION CHARACTERISTICS
Parameter Conditions MIN TYP MAX Units
PIN CONNECTIONS
1000 10 VDC GΩ 4 Pin SIP PIN 1 GND 2 VIN 3 0V 4 +V
Isolation Test Voltage Resistance
Flash tested for 1 second Viso=500VDC
GENERAL CHARACTERISTICS
Parameter Conditions MIN TYP MAX Units
Switching Frequency
5V input types 12V input types
90 90
kHz
TEMPERATURE CHARACTERISTICS
Parameter Conditions MIN TYP MAX Units
Specification Storage Case Temperature Above Ambient Cooling
All output types 5V output types All other output types Free air convection
–40 –50
85 130 45 36
°C °C °C
PERFORMANCE CHARACTERISTICS
tolerance envelope
+10% +5% V nominal
4.0 +2.5% –2.5% –7.5% 2.0 1.0 0 3.0
temperature derating graph
85°
Safe Operating Area
10
50 Output Load Current (%)
100
–40
0 50 100 Ambient Temperature (°C)
150
MECHANICAL DIMENSIONS
4 Pin SIP
Weight: 2.0g
14.00
3.38±0.50
0.30 0.20
7.50 10.0
NML0505S
XYYWWi
1.25
7 .62 4.60 3.60 0.50
1
2
3
4
0.55 0.45
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 NML.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: 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
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