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MEU1S0303ZC 데이터시트 PDF




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부품번호 MEU1S0303ZC 기능
기능 Isolated 1W Single Output DC/DC Converters
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MEU1S0303ZC 데이터시트, 핀배열, 회로
www.murata-ps.com
SELECTION GUIDE
MEU1 Series
Isolated 1W Single Output DC/DC Converters
Order Code
FEATURES
„UL60950 recognised
„Single isolated output
„1kVDC isolation
„Efficiency up to 87%
„Wide temperature performance at full
1 watt load, –40°C to 85°C
„Power density 2.62W/cm3
„3.3V, 5V, and 12V input
„3.3V, 5V, 9V, 12V and 15V output
„Custom solutions available
„PCB mounting
„Footprint reduction of over 26% from
previous generations of 1W DC/DC’s
DESCRIPTION
The MEU1 series is a new range of ultra miniature
through hole 1W DC/DC converters, available in
a ZIP style pinout. The MEU1 series offers 1W
of available output power over the industrial
temperature range of -40ºC to 85ºC. They are
ideally suited for providing local supplies on
control system boards.
With the added benefit of 1kVDC galvanic
isolation to reduce switching noise and allows
the device to be configured to provide an isolated
negative rail in systems where only positive rails
exist.
MEU1S0303ZC
MEU1S0305ZC
MEU1S0309ZC
MEU1S0312ZC
MEU1S0315ZC
MEU1S0503ZC
MEU1S0505ZC
MEU1S0509ZC
MEU1S0512ZC
MEU1S0515ZC
MEU1S1205ZC
MEU1S1209ZC
MEU1S1212ZC
MEU1S1215ZC
V V mA
%
3.3 3.3 303 11 14
3.3 5 200 9 12
3.3 9 111 10 13
3.3 12 83 9 12
3.3 15 67 8 10
5 3.3 303 9 12
5 5 200 7 9
5 9 111 9 12
5 12 83 8 10
5 15 67 6 8
12 5 200 5 7
12 9 111 6 9
12 12 83 5 7
12 15 67 4 6
mVp-p mA
%
27 50 385 73 76
21 45 373 76 79
16 40 376 75 79
15 40 369 77 81
14 40 371 77 81
26 50 249 74 77
19 45 244 78 81
17 40 245 77 81
17 40 239 78 83
12 35 239 78 83
21 45 100 79 83
17 40 100 80 84
15 40 100 82 86
15 40 100 84 87
pF kHrs
28 3084
30 3125
34 3960
40 3343
33 3140
29 2762
34 3354
47 2952
45 3317
39 2600
43 3742
71 2732
91 2438
91 2980
INPUT CHARACTERISTICS
Parameter
Conditions
Min. Typ. Max. Units
Continuous operation, 3.3V input types 2.97
3.3
3.63
Voltage range
Continuous operation, 5V input types 4.5 5.0
5.5 V
Continuous operation, 12V input types
10.8
12.0
13.2
Reflected ripple current
3.3V & 5V Input types
12V Input types
3 15
mA p-p
5 15
OUTPUT CHARACTERISTICS
Parameter
Conditions
Rated Power
TA=-40°C to 85°C
Voltage Set Point Accuracy See tolerance envelope
Line regulation
High VIN to low VIN
Min. Typ. Max.
1.0
Units
W
0303
All other types
1.0 1.25
1.0 1.2
%/%
ISOLATION CHARACTERISTICS
Parameter
Conditions
Isolation test voltage
Flash tested for 1 second
Resistance
Viso= 1000VDC
GENERAL CHARACTERISTICS
Parameter
Conditions
Switching frequency
Min. Typ. Max. Units
1000 VDC
10 GΩ
Min. Typ. Max. Units
85 kHz
1. Calculated using MIL-HDBK-217F FN2 with nominal input voltage at full load.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
KDC_MEU1.C02 Page 1 of 8




MEU1S0303ZC pdf, 반도체, 판매, 대치품
TOLERANCE ENVELOPES
MEU1S1205ZC
+6%
+3%
10 25 50 75
Output Load Current (%)
MEU1S1212ZC
+5%
+1.5%
10 25 50 75
Output Load Current (%)
MEU1 Series
Isolated 1W Single Output DC/DC Converters
MEU1S1209ZC
+9%
+1%
-2.5%
100
+1%
10 25 50 75
Output Load Current (%)
MEU1S1215ZC
0%
-2.5%
100
+6%
+1.5%
10 25 50 75
Output Load Current (%)
+0.5%
-3%
100
+1%
-2.5%
100
www.murata-ps.com/support
KDC_MEU1.C02 Page 4 of 8

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MEU1S0303ZC 전자부품, 판매, 대치품
MEU1 Series
Isolated 1W Single Output DC/DC Converters
TECHNICAL NOTES
ISOLATION VOLTAGE
‘Hi Pot Test’, ‘Flash Tested’, ‘Withstand Voltage’, ‘Proof Voltage’, ‘Dielectric Withstand Volt-
age’ & ‘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 MEU1 series of DC/DC converters are all 100% production tested
at their stated isolation voltage. This is 1kVDC for 1 second.
A question commonly asked is, “What is the continuous voltage that can be applied
across the part in normal operation?”
The MEU1 has been recognized by Underwriters Laboratory for functional insulation, both
input and output should normally be maintained within SELV limits i.e. less than 42.4V
peak, or 60VDC. The isolation test voltage represents a measure of immunity to transient
voltages and the part should never be used as an element of a safety isolation system.
The part could be expected to function correctly with several hundred volts offset applied
continuously across the isolation barrier; but then the circuitry on both sides of the bar-
rier must be regarded as operating at an unsafe voltage and further isolation/insulation
systems must form a barrier between these circuits and any user-accessible circuitry
according to safety standard requirements.
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 materi-
als, construction and environment. The MEU1 series has toroidal isolation transformers,
with no additional insulation between primary and secondary windings of enameled
wire. While parts can be expected to withstand several times the stated test voltage,
the isolation capability does depend on the wire insulation. Any material, including this
enamel (typically polyurethane) 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 test-
ing, but if it is absolutely required, that the voltage be reduced by 20% from specified
test voltage.
This consideration equally applies to agency recognized parts rated for better than func-
tional isolation where the wire enamel insulation is always supplemented by a further
insulation system of physical spacing or barriers.
SAFETY APPROVAL
The MEU1 series has been recognized by Underwriters Laboratory (UL) to UL 60950 for functional insulation, file number E151252 applies. The MEU1 Series of converters are not
internally fused so to meet the requirements of UL 60950
an anti-surge input line fuse should always be used with ratings as defined below.
MEU1S03xxxC: 0.50A
MEU1S05xxxC: 0.50A
MEU1S12xxxC: 0.25A
All fuses should be UL approved and rated to at least the maximum allowable DC input voltage.
RoHS COMPLIANCE INFORMATION
This series is compatible with RoHS soldering systems with a peak wave solder temperature of 260°C for 10 seconds. The pin
termination finish is Tin Plate, Hot Dipped over Matte Tin with Nickel Preplate. This series are backward compatible with Sn/Pb
soldering systems.
For further information, please visit www.murata-ps.com/rohs
www.murata-ps.com/support
KDC_MEU1.C02 Page 7 of 8

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MEU1S0303ZC

Isolated 1W Single Output DC/DC Converters

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