NMF SERIES
Isolated 1W Regulated Single Output DC-DC Converters
SELECTION GUIDE
Nominal
Input
Voltage
Output
Voltage
Output
Current
Power Out
MTTF
1
Order Code
NMF0505S
NMF0509S
NMF0512S
NMF0515S
NMF1205S
NMF1209S
NMF1212S
NMF1215S
NMF2405S
NMF2409S
NMF2412S
NMF2415S
NMF4805S
NMF4809S
NMF4812S
NMF4815S
(V)
5
5
5
5
12
12
12
12
24
24
24
24
48
48
48
48
(V)
5
9
12
15
5
9
12
15
5
9
12
15
5
9
12
15
(mA)
100
100
83
67
100
100
83
67
100
100
83
67
100
100
83
67
(mW)
500
900
1000
1000
500
900
1000
1000
500
900
1000
1000
500
900
1000
1000
(%)
50
62
62
62
50
62
62
62
50
62
62
62
50
62
62
62
(pF)
28
32
33
39
48
63
68
69
84
106
132
152
54
75
92
109
kHrs
1307
825
512
316
456
379
290
218
843
613
422
279
200
283
162
135
SIP
SIP
FEATURES
s
Output Regulation <1.5%
s
Controllable Output
s
1kVDC Isolation
s
Single Isolated Output
s
SIP & DIP Package Styles
s
Efficiency to 62%
s
Power Density 0.85W/cm
3
s
5V, 12V, 24V & 48V Input
s
5V, 9V, 12V & 15V Output
s
Footprint from 1.17cm
s
No Heatsink Required
s
SMD Construction
s
Toroidal Magnetics
s
Fully Encapsulated
s
No External Components
s
MTTF up to 2.4 Million hours
s
PCB Mounting
s
Custom Solutions Available
2
SIP
SIP
s
UL 94V-0 Package Material
i When operated
without
additional external load capacitance, the output voltage of the devices is guaranteed
to be within 95% of its steady state value within 100ms after the input voltage has reached 95% of its steady
state value,
irrespective of the rise time of the input voltage.
ii 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
Continuous
Continuous
Continuous
Continuous
operation,
operation,
operation,
operation,
5V input types
12V input types
24V input types
48V input types
4.75
11.4
22.8
45.6
5
12
24
48
5.25
12.6
25.2
50.4
V
OUTPUT CHARACTERISTICS
DESCRIPTION
The NMF series of DC-DC Converters is
used where a tightly regulated supply is
required. They are ideal for situations where
the input voltage is not tightly controlled.
The output control pin makes the device
particularly suitable for Flash PROM
applications where an on/off controlled
voltage source is required.
Parameter
Conditions
2
MIN
TYP
MAX
Units
Rated Power
Line Regulation
Load Regulation
Ripple & Noise
T
A
= 0°C to 70°C
High V
IN
to low V
IN
10% load to rated load, 5V output types
BW=DC to 20MHz, all output types
1
0.25
0.9
60
1.5
W
%/%
%
mVp-p
ABSOLUTE MAXIMUM RATINGS
Short-circuit duration
3
Internal power dissipation
Lead temperature 1.5mm from case for 10 seconds
Input voltage V
IN
, NMF05 types
Input voltage V
IN
, NMF12 types
Input voltage V
IN
, NMF24 types
Input voltage V
IN
, NMF48 types
1 second
450mW
300°C
7V
15V
28V
54V
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.
4 Replace suffix “S” with “D” for DIP package style.
All specifications typical at T
A
=25°C, nominal input voltage and rated output current unless otherwise specified.
www.dc-dc.com
NMF SERIES
Isolated 1W Regulated Single Output DC-DC Converters
ISOLATION CHARACTERISTICS
Parameter
Conditions
MIN
TYP
MAX
Units
PIN CONNECTIONS
1000
0.1
VDC
GΩ
14 Pin DIP
PIN
1 GND
9 +V REG
10 CTRL
11
0V
14
V
IN
7 Pin SIP
PIN
1
V
IN
2 GND
4
0V
5
CTRL
6 +V REG
Isolation Test Voltage
Resistance
Flash tested for 1 second
Viso=500VDC
GENERAL CHARACTERISTICS
Parameter
Conditions
MIN
TYP
MAX
Units
Switching Frequency
All input types
80
kHz
TEMPERATURE CHARACTERISTICS
Parameter
Conditions
MIN
TYP
MAX
Units
Specification
Storage
Cooling
All output types
Free air convection
0
–55
70
150
°C
°C
PERFORMANCE CHARACTERISTICS
2.0
1.5
1.0
0.5
0
–40
0
50 70 100 125 150
Ambient Temperature (°C)
Safe Operating Area
temperature derating graph
MECHANICAL DIMENSIONS
14 Pin DIP
Weight: 2.9g
19.50
NMF1205D
9.80
6.80*
7.62
4.10
7.62
0.50±0.05
1
YYWW
14
1 10 9
1
12.70
2.00
0.25±0.05
0.50±0.05
7 Pin SIP
Weight: 2.3g
19.50
6.00*
*
10.0
NMF1212S
YYWW
1.25
12.70
0.25±0.05
* 7.70 for 48V input variants
** 7.50 for 48V input variants
All dimensions in mm XX.XX ±0.25mm. All pins on a
2.54mm pitch and within ±0.25mm of true position.
4.10
1 2
4
2.54
5
6
0.50±0.05
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 2000
NDC NMF.2
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.
8917 Glenwood Avenue, Raleigh
NC 27612, USA
Tel: +1 (919) 571-9405
Fax: +1 (919) 571-9262
email: info@us.cdtechno-ncl.com
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