3kVDC Isolated 1W Single & Dual Output DC/DC Converters
SELECTION GUIDE
Load Regulation
(Max)
Output Current
Ripple & Noise
(Max)
Nominal Input
Voltage
Isolation
Capacitance
Efficiency
Output
Voltage
MTTF
1
kHrs
201
185
163
136
201
185
163
136
213
194
169
140
213
194
169
140
194
166
134
101
194
166
134
101
205
175
137
102
205
175
137
102
Order Code
(V)
NMV2405DAC
NMV2409DAC
NMV2412DAC
NMV2415DAC
NMV2405SAC
NMV2409SAC
NMV2412SAC
NMV2415SAC
NMV4805DAC
NMV4809DAC
NMV4812DAC
NMV4815DAC
NMV4805SAC
NMV4809SAC
NMV4812SAC
NMV4815SAC
NMV2405DC
NMV2409DC
NMV2412DC
NMV2415DC
NMV2405SC
NMV2409SC
NMV2412SC
NMV2415SC
NMV4805DC
NMV4809DC
NMV4812DC
NMV4815DC
NMV4805SC
NMV4809SC
NMV4812SC
NMV4815SC
24
24
24
24
24
24
24
24
48
48
48
48
48
48
48
48
24
24
24
24
24
24
24
24
48
48
48
48
48
48
48
48
(V)
5
9
12
15
5
9
12
15
5
9
12
15
5
9
12
15
±5
±9
±12
±15
±5
±9
±12
±15
±5
±9
±12
±15
±5
±9
±12
±15
(mA)
200
111
84
67
200
111
84
67
200
111
84
67
200
111
84
67
±100
±55
±42
±33
±100
±55
±42
±33
±100
±55
±42
±33
±100
±55
±42
±33
%
15
10
10
10
15
10
10
10
15
10
10
10
15
10
10
10
15
10
10
10
15
10
10
10
15
10
10
10
15
10
10
10
mV p-p
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
%
70
80
80
80
70
80
80
80
70
80
80
80
70
80
80
80
70
80
80
80
70
80
80
80
70
80
80
80
70
80
80
80
pF
33
40
55
70
33
40
55
70
48
59
70
81
48
59
70
81
45
52
65
70
45
52
65
70
45
58
68
75
45
58
68
75
FEATURES
RoHS compliant
Efficiency to 85%
Power density up to 0.85W/cm
3
Single or dual output
UL 94V-0 package material
No heatsink required
Footprint from 1.17cm
2
Industry standard pinout
Power sharing on dual output
3kVDC isolation (1 minute)
24V & 48V input
5V, 9V, 12V and 15V output
Internal SMD construction
Fully encapsulated with toroidal
magnetics
No external components required
No electrolytic or tantalum capacitors
DESCRIPTION
The NMV series offers single or dual output ver-
sions in the same size package as the popular
NMA series. The higher isolation is particularly
useful in control type applications where the
standard 1kV is not sufficient.
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
Voltage range
Conditions
Continuous operation, 24V input types
Continuous operation, 48V input types
Min.
21.6
43.2
Typ.
24
48
Max.
26.4
52.8
Units
V
ABSOLUTE MAXIMUM RATINGS
Short-circuit protection
2
Lead temperature 1.5mm from case for 10 seconds
Input voltage V
IN
, NMV24 types
Input voltage V
IN,
NMV48 types
1 second
300°C
28V
54V
1. Calculated using MIL-HDBK-217F with nominal input voltage at full load.
2. 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.
For full details go to
www.cd4power.com/rohs
www.cd4power.com
KDC_NMVC2.4
Page 1 of 4
Package
Style
DIP
SIP
DIP
SIP
DIP
SIP
DIP
SIP
NMV 24V & 48V SERIES
3kVDC Isolated 1W Single & Dual Output DC/DC Converters
OUTPUT CHARACTERISTICS
Parameter
Rated Power
Voltage Set Point Accuracy
Line regulation
1
Conditions
T
A
=0
°C
to 70
°C
See tolerance envelope
High V
IN
to low V
IN
Min.
Typ.
Max.
1
1.2
Units
W
%/%
ISOLATION CHARACTERISTICS
Parameter
Isolation test voltage
Resistance
Conditions
Flash tested for 1 minute
Viso= 1000VDC
Min.
3000
1
Typ.
Max.
Units
VDC
GΩ
GENERAL CHARACTERISTICS
Parameter
Switching frequency
Conditions
All input types
Min.
Typ.
100
Max.
Units
kHz
TEMPERATURE CHARACTERISTICS
Parameter
Specification
Storage
Cooling
Conditions
All output types
Free air convection
Min.
0
-55
Typ.
Max.
70
150
Units
°C
TEMPERATURE DERATING GRAPH
1.5
TOLERANCE ENVELOPE
+10%
+5%
V
NOM
Typical
L
Output Power (W)
1.0
0.5
0
70°C
oad Line
+2.5%
-2.5%
-7.5%
Safe Operating
Area
0
150
50
100
Ambient Temperature (°C)
Output Voltage
10
75
50
25
Output Load Current (%)
100
TECHNICAL NOTES
ISOLATION VOLTAGE
‘Hi Pot Test’, ‘Flash Tested’, ‘Withstand Voltage’, ‘Proof Voltage’, ‘Dielectric Withstand Voltage’ & ‘Isolation Test Voltage’ are all terms that relate to the same thing, a test voltage,
applied for a specified time, across a component designed to provide electrical isolation, to verify the integrity of that isolation.
C&D Technologies NMV series of DC/DC converters are all 100% production tested at their stated isolation voltage. This is 3kVDC for 1 minute.
A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?”
For a part holding no specific agency approvals, such as the NMV series, both input and output should normally be maintained within SELV limits i.e. less than 42.4V peak, or
60VDC. The isolation test voltage represents a measure of immunity to transient voltages and the part should never be used as an element of a safety isolation system. The part
could be expected to function correctly with several hundred volts offset applied continuously across the isolation barrier; but then the circuitry on both sides of the barrier must
be regarded as operating at an unsafe voltage and further isolation/insulation systems must form a barrier between these circuits and any user-accessible circuitry according to
safety standard requirements.
REPEATED HIGH-VOLTAGE ISOLATION TESTING
It is well known that repeated high-voltage isolation testing of a barrier component can actually degrade isolation capability, to a lesser or greater degree depending on materials,
construction and environment. The NMV series has toroidal isolation transformers, with no additional insulation between primary and secondary windings of enameled wire. While
parts can be expected to withstand several times the stated test voltage, the isolation capability does depend on the wire insulation. Any material, including this enamel (typically
polyurethane) is susceptible to eventual chemical degradation when subject to very high applied voltages thus implying that the number of tests should be strictly limited. We
therefore strongly advise against repeated high voltage isolation testing, but if it is absolutely required, that the voltage be reduced by 20% from specified test voltage.
This consideration equally applies to agency recognized parts rated for better than functional isolation where the wire enamel insulation is always supplemented by a further
insulation system of physical spacing or barriers.
www.cd4power.com
KDC_NMVC2.4
Page 2 of 4
NMV 24V & 48V SERIES
3kVDC Isolated 1W Single & Dual Output DC/DC Converters
PACKAGE SPECIFICATIONS
MECHANICAL DIMENSIONS
DIP package
½½½½½
½½½½½½
½½½½½½½½½½½½
SIP package
½½½½½½½½½½½½
½½½½½½½½½
½½½½½½
½½½½½
½½½½½½
½½
½½½½½
½
½½½½½½½½
½½½½½½½½½½½½
½½½½½½½½½½½½
½½½½½
½½½½½½½
½½½½½½
½½½½½½½½½
½½½½½½½½½½½½½
½½½½½½½½½½½½½
½ ½
½½½½½½½½½½½½½
½½½½½½½½½½½½
½ ½½ ½
½½½½½½½½½½
½½½½½½
½½½½½½
½½½½½½½½½½½½
½½½½½½½½½½½½
½½½½½½½½½½
½½½½½½½½½½½½½
½½½½½½½½½½½½½
½½½½
½½½½½½
½½½½½½
½½½½½½
½
½½
½
½½ ½½ ½
½½½½½½½½½½½
½½½½½½½½½½½½½½½½½½½½½½
½½½½½½½½½½½½½
½½½½½½½½½½½½½
½½½½½½½½½½½½½
½½½½½½½½½½½½½
½½½½½½½½½½½½
½½½½½½½½½½½
0.303 (7.70) for 48V variants
0.300 (7.50) for 48V variants
* Pin not fitted on single output variants.
All dimensions in inches ±0.01 (mm ±0.25mm). All pins on a 0.1 (2.54) pitch and within ±0.01 (0.25) of true position.
Weight: 2.11g (DIP and SIP)
PIN CONNECTIONS
Single output variants
14 Pin DIP
Pin
Function
1
7
8
10
14
-V
IN
NC
+V
OUT
-V
OUT
+V
IN
Dual output variants
14 Pin DIP
Pin
Function
1
7
8
9
10
14
-V
IN
NC
+V
OUT
OV
-V
OUT
+V
IN
7 Pin SIP
Pin
Function
1
2
5
7
+V
IN
-V
IN
-V
OUT
+V
OUT
7 Pin SIP
Pin
Function
1
2
5
6
7
+V
IN
-V
IN
-V
OUT
OV
+V
OUT
www.cd4power.com
KDC_NMVC2.4
Page 3 of 4
NMV 24V & 48V SERIES
3kVDC Isolated 1W Single & Dual Output DC/DC Converters
PACKAGE SPECIFICATIONS (continued)
RECOMMENDED FOOTPRINT DETAILS
14 Pin DIP Package
½
½½½½½½½½½½½½
½½½½½½½½½½½½
½½½½½½½
7 Pin SIP Package
½½½½½½½
½½½½½½½½½½½½½
½
½½½½½½½½½½½½
½½½½½½½½½½½½
½½½½½½½½½½½½½
½
½½½½½½½½½½
½½½½½½½½½½
½
½½½½½½½½½½
*Hole not required for single output variants.
½½½½½½½½½½
TUBE OUTLINE DIMENSIONS
14 Pin DIP Tube
½½½½½½½½½½½½½
7 Pin SIP Tube
½½½½½½½½½½½½½
½½½½½½½½½½½½½
½½½½½½½½½½½½½½
½½½½½½½½½½½½½
½½½½½½½½½½½
Tube Quantity : 25
½½½½½½½½½½½½
½½½½½½½½½½½½
½½½½½½½½½½½½½
Unless otherwise stated all dimensions in inches (mm) ±0.5mm.
Tube length (14 Pin DIP) : 20.47 (520mm ±2mm).
Tube length (7 Pin SIP) : 20.47 (520mm ±2mm).
RoHS COMPLIANT INFORMATION
This series is compatible with RoHS
soldering systems with a peak wave solder
temperature of 300°C for 10 seconds. The
pin termination finish on the SIP package
type is Tin Plate, Hot Dipped over Matte Tin
with Nickel Preplate. The DIP types are Matte
Tin over Nickel Preplate. Both types in this
series are backward compatible with Sn/Pb
soldering systems.
For further information, please visit www.cd4power.com/rohs
½½½½½½½½½½½½
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.
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