NML SERIES
Isolated 2W Single Output DC-DC Converters
SELECTION GUIDE
Nominal
Input
Voltage
Output
Voltage
Output
Current
Input Current
at Rated Load
MTTF
1
Order Code
NML0505S
NML0509S
NML0512S
NML0515S
(V)
5
5
5
5
12
12
12
12
(V)
5
9
12
15
5
9
12
15
(mA)
400
222
167
133
400
222
167
133
(mA)
513
492
479
481
207
198
197
197
(%)
78
81
84
83
81
84
85
85
(pF)
19
27
32
27
28
42
46
54
kHrs
2327
1393
832
481
716
593
461
328
FEATURES
s
Wide Temperature performance at
full 2 Watt load, –40°C to 85°C
s
Single Isolated Output
s
Pin Compatible with LME and
NME Series
s
Industry Standard Pinout
s
1kVDC Isolation
s
Efficiency to 85%
s
Power Density up to 2.01W/cm
3
s
5V & 12V Input
s
5V, 9V, 12V and 15V Output
s
Footprint from 1.05cm
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
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
–40°C and full 2 watt output at 85°C. Pin
compatibility with the NME and LME ensures
ease of upgradeability.
NML1205S
NML1209S
NML1212S
NML1215S
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
Reflected
Ripple Current
Continuous operation, 5V input types
Continuous operation, 12V input types
5V input types
12V input types
4.5
10.8
20
23
5
12
33
38
5.5
13.2
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 85°C
See tolerance envelope
1.0
7.0
4.5
4.5
3.7
96
67
59
53
76
63
53
45
2
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
NML0505S, BW=DC to 20MHz
NML0509S, BW=DC to 20MHz
NML0512S, BW=DC to 20MHz
NML0515S, BW=DC to 20MHz
Ripple & Noise
NML1205S, BW=DC to 20MHz
NML1209S, BW=DC to 20MHz
NML1212S, BW=DC to 20MHz
NML1215S, BW=DC to 20MHz
1.2
8.5
5.2
5.5
8.5
%/%
%
200
mV p-p
ABSOLUTE MAXIMUM RATINGS
Internal power dissipation
Lead temperature 1.5mm from case for 10 seconds
Input voltage V
IN
, NML05 types
Input voltage V
IN
, NML12 types
805mW
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
All specifications typical at T
A
=25°C, nominal input voltage and rated output current unless otherwise specified.
NML SERIES
Isolated 2W Single Output DC-DC Converters
ISOLATION CHARACTERISTICS
Parameter
Conditions
MIN
TYP
MAX
Units
PIN CONNECTIONS
1000
10
VDC
GΩ
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
90
90
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
45
36
°C
°C
°C
PERFORMANCE CHARACTERISTICS
tolerance envelope
+10%
+5%
V nominal
4.0
+2.5%
–2.5%
–7.5%
2.0
1.0
0
3.0
temperature derating graph
85°
Safe Operating Area
10
50
Output Load Current (%)
100
–40
0
50
100
Ambient Temperature (°C)
150
MECHANICAL DIMENSIONS
4 Pin SIP
Weight: 2.0g
14.00
3.38±0.50
0.30
0.20
7.50
10.0
NML0505S
XYYWWi
1.25
7
.62
4.60
3.60
0.50
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 2000
NDC NML.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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