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Murata Manufacturing Electronic Components Datasheet

NXE2S1205MC Datasheet

Isolated 2W Single Output SM DC-DC Converters

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www.murata-ps.com
SELECTION GUIDE
NXE2 Series
Isolated 2W Single Output SM DC-DC Converters
Order Code1
FEATURES
„Patents pending
„Lower Profile
„UL60950 Recognised
„ANSI/AAMI ES60601-1 Recognised
„3kVDC Isolation “Hi Pot Test”
„Substrate Embedded Transformer
„Automated Manufacture
„Industry Standard Footprint
„Short Circuit Protection3
„Halogen Free
PRODUCT OVERVIEW
The NXE2 series is a new range of low cost, lower
profile, fully automated manufacture surface
mount DC-DC converters. The NXE2 series
automated manufacturing process with substrate
embedded transformer, offers increased product
reliability and repeatability of performance in a
halogen free, iLGA inspectable package. The NXE2
series, industry standard footprint is compatible
with existing designs.
The NXE2 series has a MSL rating 2, and is com-
patible with a peak reflow solder temperature of
260˚C as per J-STD-020.
For full details go to
www.murata-ps.com/rohs
MIL. Tel.
V V mA mA % % mVp-p mVp-p % % pF
kHrs
NXE2S0505MC 5 5 542 400 9 12 55 85 68.5 72 2.1 1853 18868
NXE2S1205MC 12 5 220 400 11 12 50 85 74.5 77 2.1 1800 46838
NXE2S1212MC 12 12 210 167 7 8.5 25 55 74.5 76.5 2.1 1848 22472
NXE2S1215MC 12 15 205 133 8.5 11 30 60 76 79 2.1 1631 58568
INPUT CHARACTERISTICS
Parameter
Conditions
Voltage range
Continuous operation, 5V input types
Continuous operation, 12V input types
NXE2S0505MC
Input reflected ripple
NXE2S1205MC
current
NXE2S1212MC
NXE2S1215MC
ISOLATION CHARACTERISTICS
Parameter
Conditions
Isolation voltage
Production tested for 1 second
Qualification tested for 1 minute
Resistance
Viso= 1000VDC
Min. Typ. Max. Units
4.5 5 5.5
10.8 12 13.2
V
4
2.5 mA p-p
3.3
2.8
Min. Typ. Max. Units
3000
VDC
3000
10 GΩ
OUTPUT CHARACTERISTICS
Parameter
Conditions
Rated power
TA=-40°C to 85°C
Voltage set point accuracy See tolerance envelopes
Line regulation4
High VIN to low VIN, All other variants
High VIN to low VIN ,1205 variant
Min. Typ. Max. Units
2.0 W
1.15 1.2
%/%
1.15 1.26
GENERAL CHARACTERISTICS
Parameter
Conditions
NXE2S0505MC
Switching frequency
NXE2S1205MC
NXE2S1212MC
NXE2S1215MC
Min. Typ. Max. Units
130
100
115
kHz
100
TEMPERATURE CHARACTERISTICS
Parameter
Specification
Storage
Case temperature rise above ambient
Cooling
Conditions
See derating graphs
NXE2S0505MC
NXE2S1205MC
NXE2S1212MC
NXE2S1215MC
Free air convection
Min. Typ. Max. Units
-40 85
-50 125
36 °C
32
28
27
ABSOLUTE MAXIMUM RATINGS
Input voltage VIN, NXE2S05 types
Input voltage VIN, NXE2S12 types
7V
15V
1. Components are supplied in tape and reel packaging, please refer to package specification section. Orderable part numbers are
NXE2SXXXXMC-R7 (180 pieces per reel), or NXE2SXXXXMC-R13 (800 pieces per reel).
2. Calculated using MIL-HDBK-217 FN2 and Telcordia SR-332 calculation model with nominal input voltage at full load.
3. Please refer to short circuit application notes.
4. NXE2S1205MC line regulation may increase to 2.15 %/% at the operating temperature limits.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
www.murata-ps.com
All enquiries: www.murata-ps.com/support
KDC_NXE2.C01 Page 1 of 10


Murata Manufacturing Electronic Components Datasheet

NXE2S1205MC Datasheet

Isolated 2W Single Output SM DC-DC Converters

No Preview Available !

NXE2 Series
Isolated 2W Single Output SM DC-DC Converters
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.
Murata Power Solutions NXE2 series of DC-DC converters are all 100% production tested at 3kVDC for 1 second and have been qualification tested at 3kVDC for 1 minute.
A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?”
When the insulation in the NXE2 series is not used as a safety barrier , i.e. provides functional isolation only, continuous or switched voltages across the barrier up to 3kV are
sustainable. Long term reliability testing at these voltages continues. Peak Inception voltages measured were in excess of 3.5kV when testing for partial discharge in accordance
with IEC 60270. Please contact Murata for further information.
The NXE2 series has been recognised by Underwriters Laboratory to 125Vrms Reinforced Insulation and 250Vrms Basic insulation, please see safety approval section below.
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 NXE2 series has a PCB embedded isolated transformer, using FR4 as an insolation barrier between primary and secondary windings. While parts
can be expected to withstand several times the stated test voltage, the isolation capability does depend on the FR4 insulation properties. Any material, including FR4 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 should be reduced by 20% from specified test voltage.
This consideration equally applies to agency recognised parts rated for better than functional isolation where the insulation is always supplemented by a further insulation system
of physical spacing or barriers.
SAFETY APPROVAL
ANSI/AAMI ES60601-1
The NXE2 series is recognised by Underwriters Laboratory (UL) to ANSI/AAMI ES60601-1 and provides 1 MOOP (Means Of Operator Protection) based upon a working
voltage of 250 Vrms max, between Primary and Secondary.
UL 60950
The NXE2 series has been recognised by Underwriters Laboratory (UL) to UL 60950 for reinforced insulation to a working voltage of 125Vrms and for basic insulation to a working
voltage of 250Vrms.
Creepage is 2.5mm and clearance is 2mm
FUSING
The NXE2 Series of converters are not internally fused so to meet the requirements of UL an anti-surge input line fuse should always be used with ratings as defined below.
Input Voltage, 5V 1A
Input Voltage, 12V 400mA
All fuses should be UL recognised, V rated.
RoHS COMPLIANCE AND MSL INFORMATION
This series is compatible with Pb-Free soldering systems and is also backward compatible with Sn/Pb soldering systems.
The NXE2 series can be soldered in accordance with J-STD-020 and have a classification temperature of 260°C and
moisture sensitivity level 2. The termination finish on this product is Gold with plating thickness 0.12 microns.
www.murata-ps.com
All enquiries: www.murata-ps.com/support
KDC_NXE2.C01 Page 2 of 10


Part Number NXE2S1205MC
Description Isolated 2W Single Output SM DC-DC Converters
Maker muRata
Total Page 10 Pages
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