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
2
s
UL 94V-0 Package Material
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
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.
SELECTION GUIDE
Nominal
Input
Output
Output
Voltage
Voltage
Current
Power Out
MTTF
1
Order Code
(V)
(V)
(mA)
(mW)
(%)
(pF)
kHrs
NMF0505S
5
5
100
500
50
28
1307
NMF0509S
5
9
100
900
62
32
825
SIP
NMF0512S
5
12
83
1000
62
33
512
NMF0515S
5
15
67
1000
62
39
316
NMF1205S
12
5
100
500
50
48
456
NMF1209S
12
9
100
900
62
63
379
SIP
NMF1212S
12
12
83
1000
62
68
290
NMF1215S
12
15
67
1000
62
69
218
NMF2405S
24
5
100
500
50
84
843
NMF2409S
24
9
100
900
62
106
613
SIP
NMF2412S
24
12
83
1000
62
132
422
NMF2415S
24
15
67
1000
62
152
279
NMF4805S
48
5
100
500
50
54
200
NMF4809S
48
9
100
900
62
75
283
SIP
NMF4812S
48
12
83
1000
62
92
162
NMF4815S
48
15
67
1000
62
109
135
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
4.75
5
5.25
Continuous operation, 12V input types
11.4
12
12.6
Voltage Range
Continuous operation, 24V input types
22.8
24
25.2
V
Continuous operation, 48V input types
45.6
48
50.4
Parameter
Conditions
MIN
TYP
MAX
Units
Rated Power
2
T
A
= 0C to 70C
1
W
Line Regulation High V
IN
to low V
IN
0.25
%/%
Load Regulation 10% load to rated load, 5V output types
0.9
1.5
%
Ripple & Noise BW=DC to 20MHz, all output types
60
mVp-p
Short-circuit duration
3
1 second
Internal power dissipation
450mW
Lead temperature 1.5mm from case for 10 seconds
300C
Input voltage V
IN
, NMF05 types
7V
Input voltage V
IN
, NMF12 types
15V
Input voltage V
IN
, NMF24 types
28V
Input voltage V
IN
, NMF48 types
54V
INPUT CHARACTERISTICS
OUTPUT CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
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
=25C, nominal input voltage and rated output current unless otherwise specified.
NMF SERIES
Isolated 1W Regulated Single Output DC-DC Converters
www.dc-dc.com
NMF SERIES
Isolated 1W Regulated 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 NMF.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
PERFORMANCE 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
0.1
G
Parameter
Conditions
MIN
TYP
MAX
Units
Switching Frequency
All input types
80
kHz
MECHANICAL DIMENSIONS
Parameter
Conditions
MIN
TYP
MAX
Units
Specification
All output types
0
70
C
Storage
55
150
C
Cooling
Free air convection
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
* 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.
temperature derating graph
2.0
1.5
1.0
0.5
0
40
0
50
70
100 125 150
Ambient Temperature (C)
Safe Operating Area
19.50
9.80
6.80*
12.70
7.62
0.500.05
0.500.05
0.500.05
7.62
14 Pin DIP
Weight: 2.9g
NMF1205D
YYWW
0.250.05
0.250.05
9
11 10
14
1
7 Pin SIP
Weight: 2.3g
4.10
19.50
6.00**
10.0
2.00
1.25
12.70
2.54
NMF1212S
YYWW
1 2
5
6
4
4.10
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