NMA 5V & 12V SERIES
Isolated 1W Dual Output DC-DC Converters
SELECTION GUIDE
Nominal
Input
Voltage
Output
Voltage
Output
Current
Input Current
at Rated Load
MTTF
1
Order Code
NMA0505D
NMA0509D
NMA0512D
NMA0515D
(V)
5
5
5
5
5
5
5
5
12
12
12
12
12
12
12
12
(V)
5
9
12
15
5
9
12
15
5
9
12
15
5
9
12
15
(mA)
±100
±55
±42
±33
±100
±55
±42
±33
±100
±55
±42
±33
±100
±55
±42
±33
(mA)
289
270
266
263
289
270
266
263
120
113
111
110
120
113
111
110
(%)
69
75
77
78
69
75
77
78
69
74
75
76
69
74
75
76
(pF)
28
32
34
36
28
32
34
36
33
46
55
54
33
46
55
54
kHrs
1697
682
343
188
1697
682
343
188
559
375
243
154
559
375
243
154
SIP
DIP
SIP
DIP
FEATURES
s
Wide Temperature performance at
full 1 Watt load, –40°C to 85°C
s
Dual Output from a Single Input Rail
s
Industry Standard Pinout
s
Power Sharing on Output
s
1kVDC Isolation
s
Efficiency to 78%
s
Power Density up to 0.85W/cm
3
s
5V & 12V Input
s
5V, 9V, 12V and 15V Output
s
Footprint from 1.17cm
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 2.1 Million hours
s
Custom Solutions Available
s
No Electrolytic or Tantalum
Capacitors
DESCRIPTION
The NMA series of industrial temperature
range DC-DC converters are the standard
building blocks for on-board distributed
power systems. They are ideally suited for
providing dual rail supplies on primarily
digital boards with the added benefit of
galvanic isolation to reduce switching noise.
All of the rated power may be drawn from
a single pin provided the total load does not
exceed 1watt.
NMA0505S
NMA0509S
NMA0512S
NMA0515S
NMA1205D
NMA1209D
NMA1212D
NMA1215D
NMA1205S
NMA1209S
NMA1212S
NMA1215S
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
20
5.5
13.2
33
V
mA p-p
OUTPUT CHARACTERISTICS
Parameter
Conditions
2
MIN
TYP
MAX
Units
Rated Power
Voltage Set
Point Accuracy
Line Regulation
T
A
= –40°C to 120°C
See tolerance envelope
1.0
10
9
6.5
6
40
25
25
20
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
12.5
10
7.5
7.5
75
50
50
50
%/%
%
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
, NMA05 types
Input voltage V
IN
, NMA12 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.
NMA 5V & 12V SERIES
Isolated 1W Dual Output DC-DC Converters
ISOLATION CHARACTERISTICS
Parameter
Conditions
MIN
TYP
MAX
Units
PIN CONNECTIONS
1000
10
VDC
GΩ
14 Pin DIP
PIN
1 GND
7
NC
8
0V
9
+V
11
–V
14
V
IN
7 Pin SIP
PIN
1
V
IN
2 GND
4
–V
5
0V
6
+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
140
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
33
28
85
130
°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
14 Pin DIP
Weight: 2.4g
19.50
2.13
15.24
1.09
NMA0505D
9.80
6.80
7.62
4.60
3.60
0.55
0.45
2.54
1
7
0.30
0.20
XYYWWi
14
1
1
9
8
7 Pin SIP
Weight: 2.1g
19.50
2.00
0.55
0.45
0.30
0.20
12.70
6.00
10.0
NMA0505S
XYYWWi
1.25
4.60
3.60
1 2
4
2.54
5
6
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), 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 NMA.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
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