NMS1205C Datasheet, PDF (1/3 Pages) Murata Manufacturing Co., Ltd. – 6kVDC Isolated 2W Dual Output DC/DC Converters

www.murata-ps.com
NMS Series
6kVDC Isolated 2W Dual Output DC/DC Converters
FEATURES
„RoHS compliant
„UL1950 recognized
„Efficiency to 82%
„Power density up to 0.44W/cm³
„Dual outputs
„Low profile package
„UL 94V-0 package material
„No heatsink required
„Footprint 4.75cm²
„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
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.
Ḥ
SELECTION GUIDE
Order Code
Nominal Input
Voltage
Output
Voltage
Output Current Efficiency
Isolation
Capacitance
MTTF¹
V
V
mA
%
pF
kHrs
NMS0505C
5
±5
±200
74
1.8
747
NMS0509C
5
±9
±111
76
1.9
327
NMS0512C
5
±12
±83
77
2.0
169
NMS0515C
5
±15
±67
78
2.1
93
NMS1205C
12
±5
±200
78
1.9
365
NMS1209C
12
±9
±111
81
2.0
224
NMS1212C
12
±12
±83
82
2.1
136
NMS1215C
12
±15
±67
82
2.2
82
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
Voltage range
Continuous operation, 5V input types
Continuous operation, 12V input types
Min. Typ. Max. Units
4.5
5
5.5
V
10.8 12 13.2
OUTPUT CHARACTERISTICS
Parameter
Conditions
Rated Power²
TA=0°C to 70°C
Voltage Set Point Accuracy See tolerance envelope
Line regulation
High VIN to low VIN
10% load to rated load, 5V output types
Load Regulation
10% load to rated load, 9V output types
10% load to rated load, 12V output types
10% load to rated load, 15V output types
Ripple and Noise
BW=DC to 20MHz, all output types
Min. Typ. Max. Units
2
W
-7.5
10
%
1.0
1.2 %/%
10
15
6
15
%
6
15
6
15
200 mV p-p
ISOLATION CHARACTERISTICS
Parameter
Conditions
Isolation test voltage
Flash tested for 1 second
Resistance
Viso= 500VDC
Min. Typ. Max. Units
6000
VDC
10
GΩ
GENERAL CHARACTERISTICS
Parameter
Conditions
Switching frequency
All input types
Min. Typ. Max. Units
35
kHz
ABSOLUTE MAXIMUM RATINGS
Short-circuit protection³
Lead temperature 1.5mm from case for 10 seconds
Internal power dissipation
Input voltage VIN, NMS05 types
Input voltage VIN, NMS12 types
1 second
300°C
900mW
7V
15V
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 TA=25°C, nominal input voltage and rated output current unless otherwise specified.
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KDC_NMS.G03 Page 1 of 3