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PDF NXE1S0303MC Data sheet ( Hoja de datos )
| Número de pieza | NXE1S0303MC | |
| Descripción | Isolated 1W Single Output SM DC/DC Converters | |
| Fabricantes | muRata | |
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www.murata-ps.com
SELECTION GUIDE
NXE1 Series
Isolated 1W Single Output SM DC/DC Converters
Order Code1
FEATURES
Patents pending
Lower Profile
UL60950 Recognition pending
ANSI/AAMI ES60601-1 Recognition
pending
3kVDC Isolation “Hi Pot Test”
Substrate Embedded Transformer
Automated Manufacture
Industry Standard Footprint
Short Circuit Protection3
Halogen Free
PRODUCT OVERVIEW
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.
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.
V V mA mA % % mVp-p mVp-p % % pF kHrs
NXE1S0303MC 3.3 3.3 415 303 11.5 15 55 70 63 66 3 4074
NXE1S0305MC 3.3 5 415 200 9.5 13 40 55 67 70 3 3667
NXE1S0505MC 5
5 303 200 6
8 30 45 64 67.5 3 6384
INPUT CHARACTERISTICS
Parameter
Conditions
Voltage range
Continuous operation, 3.3V input types
Continuous operation, 5V input types
Input reflected ripple
current
All variants
ISOLATION CHARACTERISTICS
Parameter
Conditions
Isolation voltage
Flash tested for 1 second
Resistance
Viso= 1000VDC
Min. Typ. Max. Units
2.97 3.3 3.63
4.5 5.0 5.5
V
7.5 15 mA p-p
Min. Typ. Max. Units
3000 VDC
10 GΩ
GENERAL CHARACTERISTICS
Parameter
Conditions
NXE1S0303MC
Switching frequency
NXE1S0305MC
NXE1S0505MC
Min. Typ. Max. Units
75
85 kHz
120
OUTPUT CHARACTERISTICS
Parameter
Conditions
Rated power
TA=-40°C to 85°C
Voltage set point accuracy See tolerance envelopes
Line regulation
High VIN to low VIN
Min. Typ. Max. Units
1.0 W
1.1 1.2 %/%
TEMPERATURE CHARACTERISTICS
Parameter
Specification
Storage
Case temperature rise above ambient
Cooling
Conditions
All output types
All output types
Free air convection
Min. Typ. Max. Units
-40 85
-50 125 °C
22
ABSOLUTE MAXIMUM RATINGS
Input voltage VIN, NXE1S03 types
Input voltage VIN, NXE1S05 types
5.5V
7V
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com
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.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
All enquiries: www.murata-ps.com/support
KDC_NXE1.D01 Page 1 of 8
1 page  
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
The NXE1 series is not hermetically sealed, customers should ensure that parts
are fully dried before input power application.
Minimum Load
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
NXE1S0303MC
NXE1S0305MC
NXE1S0505MC
Start-up time
μS
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.
NXE1S0303MC
NXE1S0305MC
NXE1S0505MC
Inductor
Capacitor
L, μH SMD Through Hole C, μF
15 82153C 11R153C
10
22 82223C 11R223C
4.7
22 82223C 11R223C
4.7
Power
Source
DC
DC
L
C
Load
www.murata-ps.com
All enquiries: www.murata-ps.com/support
KDC_NXE1.D01 Page 5 of 8
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet NXE1S0303MC.PDF ] | |
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