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FEATURES
■ Wide Temperature Performance at
full 1 Watt load, –40°C to 85°C
■ Single Isolated Output
■ Industry Standard Pinout
■ 1kVDC Isolation
■ Efficiency to 80%
■ Power Density 1.53W/cm
3
■ 5V & 12V Input
■ 5V, 9V, 12V and 15V Output
■ Footprint from 0.69cm
2
■ UL 94V-0 Package Material
■ No Heatsink Required
■ Internal SMD Construction
■ Toroidal Magnetics
■ Fully Encapsulated
■ No External Components Required
■ MTTF up to 2.9 Million Hours
■ Custom Solutions Available
■ Pin Compatible with LME &
NML Series
■ SIP & DIP Package Styles
■ PCB Mounting
DESCRIPTION
The NME 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 1 watt output at 85°C.
NME 5V & 12V SERIES
Isolated 1W Single Output DC-DC Converters
SELECTION GUIDE
Nominal
Input Output Output Input Current
Voltage Voltage Current at Rated Load MTTF
Order Code (V) (V) (mA) (mA) (%) (pF) kHrs
NME0505D 5 5 200 289 69 30 2414
NME0509D 5 9 111 260 77 37 1173
NME0512D
NME0515D 5 15 66 250 80 40 360
NME0524D
NME0505S 5 5 200 289 69 30 2414
NME0509S 5 9 111 260 77 37 1173
NME0512S
NME0512S 5 15 66 250 80 40 360
NME0524S
NME1205D 12 5 200 120 69 33 620
NME1209D 12 9 111 115 74 48 488
NME1212D
NME1215D 12 15 66 111 75 52 252
NME1205S
NME1209S 12 9 111 115 74 48 488
NME1212S 12 12 83 110 76 55 360
NME1215S
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.
5 12 83 256 78 33 633 DIP
5 24 42 248 80 48 290
5 12 83 256 78 33 633 SIP
5 24 42 248 80 48 290
12 12 83 110 76 55 360
12 5 200 120 69 33 620
12 15 66 111 75 52 252
INPUT CHARACTERISTICS
Parameter Conditions MIN TYP MAX Units
Voltage Range
Continuous operation, 5V input types 4.5 5 5.5
Continuous operation, 12V input types 10.8 12 13.2
Reflected Ripple Current 26 48 mA p-p
OUTPUT CHARACTERISTICS
Parameter Conditions MIN TYP MAX Units
Rated Power2TA= –40°C to 85°C 1 W
Voltage Set
Point Accuracy
Line Regulation High VINto low V
See tolerance envelope
IN
1.0 1.2 %/%
10% load to rated load, 5V output types 14 15
Load Regulation
10% load to rated load, 9V output types 9 10
10% load to rated load, 12V output types 7.5 9.5
10% load to rated load, 15V output types 7.0 8.5
BW=DC to 20MHz, 5V output types 85 110
Ripple & Noise
BW=DC to 20MHz, 9V output types 60 75
BW=DC to 20MHz, 12V output types 50 65
BW=DC to 20MHz, 15V output types 40 55
ABSOLUTE MAXIMUM RATINGS
Short-circuit duration
Internal power dissipation 450mW
Lead temperature 1.5mm from case for 10 seconds 300°C
Input voltage VIN, NME05 types 7V
Input voltage VIN, NME12 types 15V
3
1 second
1
DIP
SIP
V
%
mV p-p
www.dc-dc.com
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.
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NME 5V & 12V SERIES
Isolated 1W Single Output DC-DC Converters
ISOLATION CHARACTERISTICS
Parameter Conditions MIN TYP MAX Units
Isolation Test Voltage Flash tested for 1 second 1000 VDC
Resistance Viso=500VDC 10 GΩ
GENERAL CHARACTERISTICS
Parameter Conditions MIN TYP MAX Units
Switching Frequency
5V input types 110
12V input types 145
kHz
TEMPERATURE CHARACTERISTICS
Parameter Conditions MIN TYP MAX Units
Specification All output types -40 85 °C
Storage -50 130 °C
Case Temperature
Above Ambient
5V output types 41
All other output types 32
°C
Cooling Free air convection
PERFORMANCE CHARACTERISTICS
+10%
+5%
V nominal
tolerance envelope
+2.5%
-2.5%
-7.5%
temperature derating graph
2.0
1.5
1.0
PIN CONNECTIONS
8 Pin DIP
PIN
1 GND
4 VIN
5 +V
7 0V
4 Pin SIP
PIN
1 GND
2 VIN
3 0V
4 +V
10 50 100
Output Load Current (%)
MECHANICAL DIMENSIONS
8 Pin DIP
Weight: 1.48g
11.50
NME0505D
XYYWWi
9.80
4 Pin SIP
Weight: 1.30g
6.00
11.50
4.60
3.60
4.60
3.60
6.80
10.0
NME0505S
XYYWWi
1
2 3 4
0.55
0.45
0.55
0.45
1.25
7.62
0.5
Safe Operating Area
0
-40 0 50 100 150
1
Ambient Temperature (°C)
7.62 1.091.94
4
7 5
1.94
7.62
0.30
0.20
0.30
0.20
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 NME.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