SELECTION GUIDE
FEATURES
s
Wide Temperature performance at
full 2 Watt load, 40C to 85C
s
Single Isolated Output
s
Pin Compatible with LME and
NME Series
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Industry Standard Pinout
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1kVDC Isolation
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Efficiency to 85%
s
Power Density up to 2.01W/cm
3
s
5V & 12V Input
s
5V, 9V, 12V and 15V Output
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Footprint from 1.05cm
2
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UL 94V-0 Package Material
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No Heatsink Required
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Internal SMD Construction
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Toroidal Magnetics
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Fully Encapsulated
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No External Components Required
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MTTF up to 2.9 Million hours
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Custom Solutions Available
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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
40C and full 2 watt output at 85C. Pin
compatibility with the NME and LME ensures
ease of upgradeability.
Nominal
Input
Output
Output
Input Current
Voltage
Voltage
Current
at Rated Load
MTTF
1
Order Code
(V)
(V)
(mA)
(mA)
(%)
(pF)
kHrs
NML0505S
5
5
400
513
78
19
2327
NML0509S
5
9
222
492
81
27
1393
NML0512S
5
12
167
479
84
32
832
NML0515S
5
15
133
481
83
27
481
NML1205S
12
5
400
207
81
28
716
NML1209S
12
9
222
198
84
42
593
NML1212S
12
12
167
197
85
46
461
NML1215S
12
15
133
197
85
54
328
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.
Parameter
Conditions
MIN
TYP
MAX
Units
Continuous operation, 5V input types
4.5
5
5.5
Voltage Range
Continuous operation, 12V input types
10.8
12
13.2
V
Reflected
5V input types
20
33
mA p-p
Ripple Current
12V input types
23
38
Parameter
Conditions
MIN
TYP
MAX
Units
Rated Power
2
T
A
= 40C to 85C
2
W
Voltage Set
Point Accuracy
See tolerance envelope
Line Regulation High V
IN
to low V
IN
1.0
1.2
%/%
10% load to rated load, 5V output types
7.0
8.5
Load Regulation
10% load to rated load, 9V output types
4.5
5.2
%
10% load to rated load, 12V output types
4.5
5.5
10% load to rated load, 15V output types
3.7
8.5
NML0505S, BW=DC to 20MHz
96
NML0509S, BW=DC to 20MHz
67
NML0512S, BW=DC to 20MHz
59
Ripple & Noise
NML0515S, BW=DC to 20MHz
53
200
mV p-p
NML1205S, BW=DC to 20MHz
76
NML1209S, BW=DC to 20MHz
63
NML1212S, BW=DC to 20MHz
53
NML1215S, BW=DC to 20MHz
45
Internal power dissipation
805mW
Lead temperature 1.5mm from case for 10 seconds
300C
Input voltage V
IN
, NML05 types
7V
Input voltage V
IN
, NML12 types
15V
INPUT CHARACTERISTICS
OUTPUT CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
1 Calculated using MIL-HDBK-217F with nominal input voltage at full load.
2 See derating curve
All specifications typical at T
A
=25C, nominal input voltage and rated output current unless otherwise specified.
NML SERIES
Isolated 2W Single Output DC-DC Converters
www.dc-dc.com
NML SERIES
Isolated 2W Single Output DC-DC Converters
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
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
ISOLATION CHARACTERISTICS
GENERAL CHARACTERISTICS
TEMPERATURE CHARACTERISTICS
PIN CONNECTIONS
Parameter
Conditions
MIN
TYP
MAX
Units
Isolation Test Voltage
Flash tested for 1 second
1000
VDC
Resistance
Viso=500VDC
10
G
Parameter
Conditions
MIN
TYP
MAX
Units
Switching Frequency
5V input types
90
kHz
12V input types
90
Parameter
Conditions
MIN
TYP
MAX
Units
Specification
All output types
40
85
C
Storage
50
130
C
Case Temperature
5V output types
45
Above Ambient
All other output types
36
C
Cooling
Free air convection
4 Pin SIP
PIN
1
GND
2
VIN
3
0V
4
+V
PERFORMANCE CHARACTERISTICS
tolerance envelope
+10%
+5%
V nominal
temperature derating graph
4.0
3.0
2.0
1.0
0
+2.5%
2.5%
7.5%
10
50
100
Output Load Current (%)
40
0
50
100
150
Ambient Temperature (C)
85
MECHANICAL DIMENSIONS
14.00
7.50
10.0
3.380.50
1.25
7.62
0.30
0.20
4.60
3.60
0.55
0.45
0.50
All dimensions in mm XX.XX 0.25mm. All pins on a
2.54mm pitch and within 0.25mm of true position.
4 Pin SIP
Weight: 2.0g
NML0505S
XYYWWi
1
2
3
4
Safe Operating Area
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