NME 5V & 12V SERIES
Isolated 1W Single Output DC-DC Converters
SELECTION GUIDE
Nominal
Input
Voltage
Output
Voltage
Output
Current
Input Current
at Rated Load
MTTF
1
Order Code
NME0505D
NME0509D
NME0512D
NME0515D
NME0524D
NME0505S
NME0509S
NME0512S
NME0512S
NME0524S
NME1205D
NME1209D
NME1212D
NME1215D
NME1205S
NME1209S
NME1212S
NME1215S
(V)
5
5
5
5
5
5
5
5
5
5
12
12
12
12
12
12
12
12
(V)
5
9
12
15
24
5
9
12
15
24
5
9
12
15
5
9
12
15
(mA)
200
111
83
66
42
200
111
83
66
42
200
111
83
66
200
111
83
66
(mA)
289
260
256
250
248
289
260
256
250
248
120
115
110
111
120
115
110
111
(%)
69
77
78
80
80
69
77
78
80
80
69
74
76
75
69
74
76
75
(pF)
30
37
33
40
48
30
37
33
40
48
33
48
55
52
33
48
55
52
kHrs
2414
1173
633
360
290
2414
1173
633
360
290
620
488
360
252
620
488
360
252
SIP
DIP
SIP
DIP
FEATURES
s
Wide Temperature Performance at
full 1 Watt load, –40°C to 85°C
s
Single Isolated Output
s
Industry Standard Pinout
s
1kVDC Isolation
s
Efficiency to 80%
s
Power Density 1.53W/cm
3
s
5V & 12V Input
s
5V, 9V, 12V and 15V Output
s
Footprint from 0.69cm
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
Pin Compatible with LME &
NML Series
s
SIP & DIP Package Styles
s
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.
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
Continuous operation, 5V input types
Continuous operation, 12V input types
Reflected Ripple Current
Voltage Range
4.5
10.8
5
12
26
5.5
13.2
48
V
mA p-p
OUTPUT CHARACTERISTICS
Parameter
Conditions
MIN
TYP
MAX
Units
Rated Power
2
Voltage Set
Point Accuracy
Line Regulation
T
A
= –40°C to 85°C
See tolerance envelope
1.0
14
9
7.5
7.0
85
60
50
40
1
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
BW=DC to 20MHz, 5V output types
BW=DC to 20MHz, 9V output types
Ripple & Noise
BW=DC to 20MHz, 12V output types
BW=DC to 20MHz, 15V output types
1.2
15
10
9.5
8.5
110
75
65
55
%/%
%
mV p-p
ABSOLUTE MAXIMUM RATINGS
Short-circuit duration
3
Internal power dissipation
Lead temperature 1.5mm from case for 10 seconds
Input voltage V
IN
, NME05 types
Input voltage V
IN
, NME12 types
1 second
450mW
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
3 Supply voltage must be discontinued at the end of the short circuit duration.
All specifications typical at T
A
=25°C, nominal input voltage and rated output current unless otherwise specified.
NME 5V & 12V SERIES
Isolated 1W Single Output DC-DC Converters
ISOLATION CHARACTERISTICS
Parameter
Conditions
MIN
TYP
MAX
Units
PIN CONNECTIONS
1000
10
VDC
GΩ
8 Pin DIP
PIN
1 GND
4
VIN
5
+V
7
0V
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
110
145
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
41
32
°C
°C
°C
PERFORMANCE CHARACTERISTICS
tolerance envelope
+
10%
+5%
V nominal
2.0
+2.5%
-2.5%
-7.5%
1.0
0.5
0
1.5
temperature derating graph
Safe Operating Area
10
50
Output Load Current (%)
100
-40
0
50
100
Ambient Temperature (°C)
150
MECHANICAL DIMENSIONS
8 Pin DIP
Weight: 1.48g
11.50
1.94
7.62
1.09
NME0505D
9.80
XYYWWi
6.80
7.62
4.60
3.60
0.55
0.45
1
7
4
5
0.30
0.20
4 Pin SIP
Weight: 1.30g
11.50
1.94
0.30
0.20
6.00
10.0
NME0505S
XYYWWi
1
.25
7
.62
4.60
3.60
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 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
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