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NXE1S0303MC-R7

型号：

NXE1S0303MC-R7

品牌：

MURATA[ muRata ]

页数：

8 页

PDF大小：

807 K

下载PDF手册
NXE1 Series  
s
Isolated 1W Single Output SM DC/DC Converters  
SELECTION GUIDE  
Order Code1  
V
V
mA  
mA  
%
%
mVp-p mVp-p  
%
%
pF  
3
kHrs  
4074  
FEATURES  
„ꢀPatents pending  
NXE1S0303MC  
NXE1S0305MC  
NXE1S0505MC  
3.3  
3.3  
5
3.3  
415  
303  
11.5  
15  
55  
40  
30  
70  
55  
45  
63  
66  
5
5
415  
303  
200  
200  
9.5  
6
13  
8
67  
64  
70  
3
3
3667  
6384  
„ꢀLower Profile  
67.5  
„ꢀ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  
INPUT CHARACTERISTICS  
Parameter  
Conditions  
Min.  
2.97  
Typ.  
Max.  
Units  
V
Continuous operation, 3.3V input types  
3.3  
3.63  
Voltage range  
Continuous operation, 5V input types  
4.5  
5.0  
5.5  
Input reflected ripple  
current  
All variants  
7.5  
15  
mA p-p  
ISOLATION CHARACTERISTICS  
Parameter  
Conditions  
Min.  
3000  
3000  
10  
Typ.  
Max.  
Units  
VDC  
GΩ  
Production tested for 1 second  
Qualification tested for 1 minute  
Viso= 1000VDC  
Isolation voltage  
Resistance  
GENERAL CHARACTERISTICS  
PRODUCT OVERVIEW  
Parameter  
Conditions  
Min.  
Typ.  
75  
85  
Max.  
Units  
kHz  
The NXE1 series is a new range of low cost, lower  
profile, fully automated manufacture surface  
mount DC/DC converters. The NXE1 series  
automated manufacturing process with substrate  
Embedded Transformer, offers increased product  
reliability and repeatability of performance in a  
halogen free, iLGA inspectable package. The NXE1  
series, industry standard footprint is compatible  
with existing designs.  
NXE1S0303MC  
NXE1S0305MC  
NXE1S0505MC  
Switching frequency  
120  
OUTPUT CHARACTERISTICS  
Parameter  
Conditions  
Min.  
Typ.  
1.1  
Max.  
1.0  
Units  
W
Rated power  
TA=-40°C to 85°C  
Voltage set point accuracy See tolerance envelopes  
Line regulation High VIN to low VIN  
1.2  
%/%  
The NXE1 series has a MSL rating 2, and is com-  
patible with a peak reflow solder temperature of  
245ÚC as per J-STD-020 and J-STD-075.  
TEMPERATURE CHARACTERISTICS  
Parameter  
Specification  
Conditions  
All output types  
Min.  
-40  
Typ.  
22  
Max.  
85  
Units  
°C  
Storage  
-50  
125  
Case temperature rise above ambient  
Cooling  
All output types  
Free air convection  
ABSOLUTE MAXIMUM RATINGS  
Input voltage VIN, NXE1S03 types  
Input voltage VIN, NXE1S05 types  
5.5V  
7V  
1. Components are supplied in tape and reel packaging, please refer to package specification section. Orderable part numbers are  
NXE1S0505MC-R7 (180 pieces per reel), or NXE1S0505MC-R13 (800 pieces per reel).  
2. Calculated using MIL-HDBK-217 FN2 calculation model with nominal input voltage at full load.  
3. Please refer to short circuit application notes.  
For full details go to  
www.murata-ps.com/rohs  
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_NXE1.E02 Page 1 of 8  
NXE1 Series  
Isolated 1W 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 NXE1 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?”  
The NXE1 series has been recognized by Underwriters Laboratory to 125 Vrms 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 NXE1 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 recognized 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 NXE1 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 NXE1 series has been recognised by Underwriters Laboratory (UL) to UL 60950 for reinforced insulation to a working voltage of 125 Vrms and for basic insulation to a working  
voltage of 250Vrms.  
FUSING  
The NXE1 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, 3.3V: 1A  
Input Voltage, 5V: 0.5A  
All fuses should be UL recognized and rated to at least the maximum allowable DC input voltage.  
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 NXE1 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_NXE1.E02 Page 2 of 8  
NXE1 Series  
Isolated 1W Single Output SM DC/DC Converters  
TOLERANCE ENVELOPES  
The voltage tolerance envelopes show typical load regulation characteristics for this product series. The tolerance envelope is the maximum output voltage variation due to  
changes in output loading and set point accuracy.  
NXE1S0303MC  
NXE1S0305MC  
+9.2%  
+3.9%  
+5.5%  
-1.5%  
+0.3%  
-5.8%  
-5.4%  
-13.4%  
100  
100  
10  
25  
50  
75  
10  
25  
50  
75  
Output Load Current (%)  
Output Load Current (%)  
NXE1S0505MC  
+10%  
+5%  
+1.5%  
-3.5%  
100  
10  
25  
50  
75  
Output Load Current (%)  
TEMPERATURE DERATING GRAPH  
1.5  
85°C  
1.0  
0.5 Safe Operating Area  
0
-40  
100  
150  
0
50  
Ambient Temperature (°C)  
www.murata-ps.com  
All enquiries: www.murata-ps.com/support  
KDC_NXE1.E02 Page 3 of 8  
NXE1 Series  
Isolated 1W Single Output SM DC/DC Converters  
EFFICIENCY VS LOAD  
NXE1S0303MC  
NXE1S0305MC  
80  
70  
60  
50  
40  
30  
20  
10  
0
80  
70  
60  
50  
40  
30  
20  
10  
0
0
10  
20  
30  
40  
50  
60  
70  
80  
90  
100  
0
10  
20  
30  
40  
50  
60  
70  
80  
90  
100  
Load (%)  
Load (%)  
NXE1S0505MC  
80  
70  
60  
50  
40  
30  
20  
10  
0
0
10  
20  
30  
40  
50  
60  
70  
80  
90  
100  
Load (%)  
CHARACTERISATION TEST METHODS  
Ripple & Noise Characterisation Method  
Ripple and noise measurements are performed with the following test configuration.  
C1  
C2  
1μF X7R multilayer ceramic capacitor, voltage rating to be a minimum of 3 times the output voltage of the DC/DC converter  
10μF tantalum capacitor, voltage rating to be a minimum of 1.5 times the output voltage of the DC/DC converter with an ESR of less  
than 100mꢀ at 100 kHz  
C3  
R1  
100nF multilayer ceramic capacitor, general purpose  
450ꢀ resistor, carbon film, 1% tolerance  
R2  
50ꢀ BNC termination  
T1  
3T of the coax cable through a ferrite toroid  
RLOAD  
Resistive load to the maximum power rating of the DC/DC converter. Connections should be made via twisted wires  
Measured values are multiplied by 10 to obtain the specified values.  
Differential Mode Noise Test Schematic  
DC/DC Converter  
OSCILLOSCOPE  
Y INPUT  
R2  
C1 C2 C3  
R1  
T1  
+
+
Input  
Output  
SUPPLY  
-
-
R LOAD  
www.murata-ps.com  
All enquiries: www.murata-ps.com/support  
KDC_NXE1.E02 Page 4 of 8  
NXE1 Series  
Isolated 1W Single Output SM DC/DC Converters  
APPLICATION NOTES  
Short Circuit Performance  
NXE1 series offers short circuit protection which is continious with nominal input voltage at low ambient temperatures. At higher ambient temperatures of 65 °C and  
above short circuit duration will be limited.  
Advisory Notes  
Minimum Load  
The NXE1 series is not hermetically sealed, customers should ensure that parts  
are fully dried before input power application.  
The minimum load to meet datasheet specification is 10% of the full rated load  
across the specified input voltage range. Lower than 10% minimum loading will  
result in an increase in output voltage, which may rise to typically double the  
specified output voltage if the output load falls to less than 5%.  
Capacitive Loading & Start Up  
Typical start up times for this series, with a typical input voltage rise time of 2.2μs and output capacitance of 10μF, are shown in the table below. The  
product series will start into a capacitance of 47μF with an increased start time, however, the maximum recommended output capacitance is 10μF.  
Typical Start-Up Wave Form  
Start-up time  
μS  
NXE1S0303MC  
NXE1S0305MC  
NXE1S0505MC  
150  
400  
250  
Output Ripple Reduction  
By using the values of inductance and capacitance stated, the output ripple at the rated load is lowered to 5mV p-p max.  
Component selection  
Capacitor: It is required that the ESR (Equivalent Series Resistance) should be as low as possible, ceramic types are recommended. The voltage rating should be at least  
twice (except for 15V output), the rated output voltage of the DC/DC converter.  
Inductor: The rated current of the inductor should not be less than that of the output of the DC/DC converter. At the rated current, the DC resistance of the inductor should  
be such that the voltage drop across the inductor is <2% of the rated voltage of the DC/DC converter. The SRF (Self Resonant Frequency) should be >20MHz.  
Inductor  
SMD  
82153C  
82223C  
82223C  
Capacitor  
C, μF  
10  
4.7  
4.7  
L
L, μH  
15  
22  
Through Hole  
11R153C  
11R223C  
DC  
NXE1S0303MC  
NXE1S0305MC  
NXE1S0505MC  
Power  
Source  
Load  
C
DC  
22  
11R223C  
www.murata-ps.com  
All enquiries: www.murata-ps.com/support  
KDC_NXE1.E02 Page 5 of 8  
NXE1 Series  
Isolated 1W Single Output SM DC/DC Converters  
EMC FILTERING AND SPECTRA  
FILTERING  
The following table shows the additional input capacitor and input inductor typically required to meet EN 55022 Curve B Quasi-Peak EMC limit, as shown in the follow-  
ing plots. The following plots show positive and negative quasi peak and CISPR22 Average Limit B (purple line) and Quasi Peak Limit B (pink line) adherence limits.  
Part Number  
Capacitor  
Inductor  
NXE1S0303MC  
NXE1S0305MC  
NXE1S0505MC  
4.7μF  
4.7μF  
3.3μF  
15μH  
15μH  
15μH  
NXE1S0303MC  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
1.00E+05  
1.00E+06  
1.00E+07  
1.00E+08  
Frequency (Hz)  
NXE1S0305MC  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
1.00E+05  
1.00E+06  
1.00E+07  
1.00E+08  
Frequency (Hz)  
NXE1S0505MC  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
1.00E+05  
1.00E+06  
1.00E+07  
1.00E+08  
Frequency (Hz)  
www.murata-ps.com  
All enquiries: www.murata-ps.com/support  
KDC_NXE1.E02 Page 6 of 8  
NXE1 Series  
Isolated 1W Single Output SM DC/DC Converters  
PACKAGE SPECIFICATIONS  
Mechanical Dimensions  
Pin Connections  
12.70 [0.500]  
Pin  
1
Function  
-Vin  
(7.62 [0.300])  
3
+Vin  
7
-Vout  
+Vout  
NA  
8
SMA PICKUP POINT  
14  
NA - Not available for electrical connection.  
4.36 0.35 [0.172 0.014]  
S
SEATING PLANE  
0.1 (0.004)  
S
x5 PINS  
SMA PICKUP POINT  
(TOP OF PCB)  
2.54 [0.100]  
3.11 0.19 [0.122 0.007]  
1
3
7
8
x5 PLACES  
1.52 [0.060]  
10.41 [0.410]  
14  
x 5 PLACES 0.61 [0.024]  
7.62 [0.300]  
2.54 [0.100]  
All dimensions in mm(inches), Controlling dimension is mm. Tolerances (unless otherwise stated) 0.10(0.004)  
Components shown for reference only  
Weight: 1g  
Recommended Footprint Details  
7.62 [0.300]  
x5 PLACES  
2.30 [0.091]  
9.40 [0.370]  
RECOMMENDED  
ISOLATION BARRIER  
x5 PLACES  
1.00 [0.039]  
2.54 [0.100]  
www.murata-ps.com  
All enquiries: www.murata-ps.com/support  
KDC_NXE1.E02 Page 7 of 8  
NXE1 Series  
Isolated 1W Single Output SM DC/DC Converters  
TAPE & REEL SPECIFICATIONS  
REEL OUTLINE DIMENSIONS  
REEL PACKAGING DETAILS  
Ø330 [13.000] MAX  
OR  
Ø177.8 [7.000] MAX  
+0.5  
+0.020  
Ø0.512  
[
Ø13.0  
]
-0.2  
-0.008  
GOODS  
ENCLOSURE  
SECTION  
LEADER SECTION  
400 [15.748] MIN  
TRAILER SECTION  
160 [6.299] MIN  
30.40 [1.197] MAX #  
100 [3.937]  
MIN  
Ø20.20 [Ø0.795]  
MIN  
Tape & Reel specifications shall conform with current EIA-481 standard  
Unless otherwise stated all dimensions in mm(inches)  
Controlling dimension is mm  
Carrier tape pockets shown are  
illustrative only - Refer to carrier tape  
diagram for actual pocket details.  
# Measured at hub  
## Six equi-spaced slots on 180mm/7” reel  
Reel Quantity: 7” - 180 or 13” - 800  
TAPE OUTLINE DIMENSIONS  
+0.1  
-0.0  
+0.004  
Ø0.059  
Ø1.5  
[
]
-0.000  
1.75 [0.069]  
Ø1.5 [Ø0.059] MIN  
4.0 [0.157]  
2.0 [0.079]  
3° MAX  
11.5 [0.453]  
13.3 [0.524]#  
24.3 [0.957] MAX  
COVER TAPE  
22.25 [0.876] MIN  
]
11.0 [0.433]#  
3° MAX  
0.6 0.024  
]
MAX  
5.0 [0.197]  
16.0 [0.630]  
DIRECTION OF UNREELING  
Tape & Reel specifications shall conform with current EIA-481 standard  
Unless otherwise stated all dimensions in mm(inches) 0.1mm ( 0.004 Inches)  
Controlling dimension is mm  
Components shall be orientated within the carrier tape as indicated  
# Measured on a plane 0.3mm above the bottom pocket  
This product is subject to the following operating requirements  
and the Life and Safety Critical Application Sales Policy:  
Refer to: http://www.murata-ps.com/requirements/  
Murata Power Solutions, Inc.  
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.  
ISO 9001 and 14001 REGISTERED  
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other  
technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply  
the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without  
notice.  
© 2016 Murata Power Solutions, Inc.  
www.murata-ps.com/support  
All enquiries: www.murata-ps.com/support  
KDC_NXE1.E02 Page 8 of 8  
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