FEATURES
DESCRIPTION
The NMS series of DC/DC converters are UL1950
recognized which makes them ideal for all
telecom and safety applications where approved
isolation is required. The low profile package
allows mounting in rack systems without risk of
touching other boards. The output configuration
allows all of the rated power to be drawn from a
single pin provided the total load does not exceed
2 watts. The devices feature low noise and low
isolation capacitance suiltable for applications
in high noise environments, e.g. heavy electrical
machine interface.
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RoHS compliant
UL1950 recognized
Efficiency to 82%
Power density up to 0.44W/cm
Dual outputs
Low profile package
UL 94V-0 package material
No heatsink required
Footprint 4.75cm
6kVDC isolation
5V & 12V input
5V, 9V, 12V and 15V output
Internal SMD construction
Fully encapsulated with toroidal magnetics
MTTF up to 747 kHrs
PCB mounting
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For full details go to
2
3
1. Calculated using MIL-HDBK-217F with nominal input voltage at full load.
2. See derating graph.
3. Supply voltage must be disconnected at the end of the short circuit duration.
All specifications typical at T
SELECTION GUIDE
NMS0505C
NMS0509C
NMS0512C
NMS0515C
NMS1205C
NMS1209C
NMS1212C
NMS1215C
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
OUTPUT CHARACTERISTICS
Parameter
Rated Power
Voltage Set Point Accuracy
Line regulation
Load Regulation
Ripple and Noise
ISOLATION CHARACTERISTICS
Parameter
Isolation test voltage
Resistance
GENERAL CHARACTERISTICS
Parameter
Switching frequency
ABSOLUTE MAXIMUM RATINGS
Short-circuit protection
Lead temperature 1.5mm from case for 10 seconds
Internal power dissipation
Input voltage V
Input voltage V
Order Code
2
IN
IN,
, NMS05 types
NMS12 types
Nominal Input
3
A
=25°C, nominal input voltage and rated output current unless otherwise specified.
Voltage
12
12
12
12
V
5
5
5
5
Conditions
Continuous operation, 5V input types
Continuous operation, 12V input types
Conditions
T
See tolerance envelope
High V
10% load to rated load, 5V output types
10% load to rated load, 9V output types
10% load to rated load, 12V output types
10% load to rated load, 15V output types
BW=DC to 20MHz, all output types
Conditions
Flash tested for 1 second
Viso= 500VDC
Conditions
All input types
A
=0
°C
IN
6kVDC Isolated 2W Dual Output DC/DC Converters
to 70
to low V
°C
Output
Voltage
±12
±15
±12
±15
±5
±9
±5
±9
IN
V
Technical enquiries - email: mk@murata-ps.com, tel:
Output Current
±200
±111
±200
±111
±83
±67
±83
±67
mA
Efficiency
1 second
300°C
900mW
7V
15V
6000
Min.
10.8
Min.
Min.
Min.
-7.5
74
76
77
78
78
81
82
82
%
4.5
NMS Series
KDC_NMSC.G02 Page 1 of 3
Typ.
Typ.
Typ.
Typ.
1.0
12
10
10
35
Capacitance
5
6
6
6
Isolation
1.8
1.9
2.0
2.1
1.9
2.0
2.1
2.2
pF
+44 (0)1908 615232
Max.
Max.
Max.
Max.
13.2
200
5.5
1.2
10
15
15
15
15
2
MTTF
mV p-p
kHrs
747
327
169
365
224
136
Units
Units
Units
Units
%/%
93
82
VDC
kHz
GΩ
%
%
W
V
1