Contact Factory

MEJ1 Series
www.murata-ps.com
5.2kVDC Isolated 1W DC/DC Converters
FEATURES
„
Basic/supplementary isolation to
UL 609502
„
ANSI/AAMI ES60601-1
„
UL 94V-0 package material
Single
„
Single and dual outputs
„
SIP package style
„
5.2kVDC isolation ‘Hi Pot Test’
„
3.3V, 5V, 12V, 15V & 24V inputs
„
3.3V, 5V, 9V, 12V & 15V output
„
Internal SMD construction
„
Fully encapsulated with toroidal magnetics
„
Pin compatible with the MEV, NMV, NMK,
MEJ2, & NMJ series
The MEJ1 series are single and dual output DC/
DC converters in a 7 pin SIP package style offering
an isolation and insulation upgrade path from
the NMV & MEV1 series’. The MEJ1 series has
UL60950 and ANSI/AAMI ES60601-1 recognition,
which makes it ideal for applications where safety
and miniaturisation are of paramount importance.
Dual
PRODUCT OVERVIEW
MEJ1S0303SC
MEJ1S0305SC
MEJ1S0503SC
MEJ1S0505SC
MEJ1S0509SC
MEJ1S0512SC
MEJ1S0515SC
MEJ1S1203SC
MEJ1S1205SC
MEJ1S1209SC
MEJ1S1212SC
MEJ1S1215SC
MEJ1S1505SC
MEJ1S1509SC
MEJ1S1512SC
MEJ1S1515SC
MEJ1S2405SC
MEJ1S2409SC
MEJ1S2412SC
MEJ1S2415SC
MEJ1D0503SC
MEJ1D0505SC
MEJ1D0509SC
MEJ1D0512SC
MEJ1D0515SC
MEJ1D1203SC
MEJ1D1205SC
MEJ1D1209SC
MEJ1D1212SC
MEJ1D1215SC
MEJ1D1505SC
MEJ1D1509SC
MEJ1D1512SC
MEJ1D1515SC
MEJ1D2405SC
MEJ1D2409SC
MEJ1D2412SC
MEJ1D2415SC
mA
303
410
200
400
303
280
200
270
111
265
83
260
66
260
303
110
200
110
111
105
83
105
66
105
200
90
111
85
83
85
66
85
200
55
111
55
83
55
66
55
±151 280
±100 275
±55
265
±42
260
±33
260
±151 110
±100 110
±55
110
±42
110
±33
110
±100
90
±55
85
±42
85
±33
85
±100
55
±55
55
±42
55
±33
55
%
8.5
9
6.5
5.5
4.5
4.5
5
6
5
4
3.5
4
5
4
4
4
5
4
4
3.5
6
5
4
4
4
5.5
4.5
4
3.5
4
4.5
4
3.5
3.5
4.5
3.5
3.5
3.5
11
10
8
7
5
7
6
7
6
5
5
5
6
5
5
5
6
7
5
5
8
6
6
5
5
6
5
5
5
5
5
5
5
5
5
5
5
5
mVp-p
42
55
33
45
20
40
24
40
20
40
22
40
22
40
25
45
21
40
18
40
19
40
16
40
23
45
18
40
20
40
19
35
23
40
17
40
19
40
17
40
19
40
23
35
16
35
15
30
13
35
19
40
18
40
15
35
14
30
11
35
19
40
14
35
13
35
20
35
19
40
17
35
12
35
14
35
%
67
68
66
68
70
71
72
69
71
73
73
73
70
72
72
73
71
72
72
74
67
69
69
72
71
70
72
73
74
73
72
73
73
73
72
73
74
74
Contact Factory
70
71.5
69
72
74
74
75
72
74.5
76.5
76.5
77
74
76
76.5
76.5
75
77
78
78
70
72
74
74.5
75.5
73
75.5
77
76.5
77
75
76.5
77
76.5
76.5
78
78
78.5
MTTF1
Efficiency
(Typ)
Efficiency
(Min)
Ripple & Noise
(Max)3
Ripple & Noise
(Typ)3
Load Regulation
(Max)
Load Regulation
(Typ)
V
3.3
5
3.3
5
9
12
15
3.3
5
9
12
15
5
9
12
15
5
9
12
15
±3.3
±5
±9
±12
±15
±3.3
±5
±9
±12
±15
±5
±9
±12
±15
±5
±9
±12
±15
Input Current
(Typ)
V
3.3
3.3
5
5
5
5
5
12
12
12
12
12
15
15
15
15
24
24
24
24
5
5
5
5
5
12
12
12
12
12
15
15
15
15
24
24
24
24
Output Current
Output Voltage
Order Code
Nominal Input
Voltage
SELECTION GUIDE
kHrs
3653
3810
4117
4082
3939
3816
3412
3461
3319
3218
3494
3150
3048
2963
2733
2333
3353
2940
2987
2517
4511
4012
3492
3485
2844
3461
3317
2908
2911
2713
3274
3229
2872
2440
3316
3208
3362
2697
INPUT CHARACTERISTICS
Parameter
Voltage range
Input reflected ripple
For full details go to
www.murata-ps.com/rohs
Conditions
Min.
Typ.
Max.
Units
Continuous operation, 3V input types
Continuous operation, 5V input types
Continuous operation, 12V input types
Continuous operation, 15V input types
Continuous operation, 24V input types
3.3V input types
5V input types
12V & 15V input types
24V input types
2.97
4.5
10.8
13.5
21.6
3.3
5
12
15
24
40
24
12
8
3.63
5.5
13.2
16.5
26.4
V
mA
1. Calculated using MIL-HDBK-217 FN2 calculation model with nominal input voltage at full load.
2. See safety approvals section for limitations of use.
3. See ripple & noise test method.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
www.murata-ps.com/support
KDC_MEJ1_C01 Page 1 of 9
MEJ1 Series
5.2kVDC Isolated 1W DC/DC Converters
OUTPUT CHARACTERISTICS
Parameter
Conditions
TA=-40ºC to 85ºC
Rated Power2
Voltage Set Point Accuracy
Line regulation
Min.
See tolerance envelopes
High VIN to low VIN
Typ.
Max.
Units
1
W
1.1
1.2
%/%
Typ.
Max.
Units
ABSOLUTE MAXIMUM RATINGS
Short-circuit protection
Lead temperature 1mm from case for 10 seconds
Input voltage VIN, MEJ1x03xxSC
Input voltage VIN, MEJ1x05xxSC
Input voltage VIN, MEJ1x12xxSC
Input voltage VIN, MEJ1x15xxSC
Input voltage VIN, MEJ1x24xxSC
48 Hours
260°C
5V
7V
15V
18V
28V
ISOLATION CHARACTERISTICS
Parameter
Conditions
Min.
Isolation test voltage
Resistance
Isolation capacitance
Flash tested for 1 second
Viso= 500VDC
5200
Parameter
Conditions
Min.
Switching frequency
All types
VDC
GΩ
pF
1
3
GENERAL CHARACTERISTICS
Typ.
Max.
50
Units
kHz
TEMPERATURE CHARACTERISTICS
Parameter
Conditions
Min.
Specification
Storage
All output types (see safety approval section for limitations)
-40
-55
MEJ1S1212SC, MEJ1S1512SC, MEJ1S2412SC, MEJ1D1215SC, MEJ1D1512SC,
MEJ1D2412SC, MEJ1D2415SC, MEJ1S1215SC, MEJ1S1509SC, MEJ1S2409SC
Case Temperature above ambient
Cooling
MEJ1D1205SC, MEJ1D1209SC, MEJ1D2405SC, MEJ1D2409SC, MEJ1S1209SC,
MEJ1S1515SC, MEJ1S2415SC, MEJ1D1212SC, MEJ1D1509SC, MEJ1S0515SC,
MEJ1S2405SC, MEJ1D0512SC, MEJ1D0515SC, MEJ1D1515SC, MEJ1S1505SC ,
MEJ1D0505SC, MEJ1D0509SC, MEJ1D1203SC, MEJ1D1505SC, MEJ1S0509SC,
MEJ1S0512SC, MEJ1S1205SC
MEJ1S0505SC, MEJ1S1203SC, MEJ1D0503SC, MEJ1S0303SC, MEJ1S0305SC,
MEJ1S0503SC
Free air convection
Typ.
Max.
Units
85
125
13
°C
17
21
Output Power (W)
TEMPERATURE DERATING GRAPH
1.0
0.5
0.2
-40
Safe
Operating Area
0
40
85
Ambient Temperature (ºC)
www.murata-ps.com/support
KDC_MEJ1_C01 Page 2 of 9
MEJ1 Series
5.2kVDC Isolated 1W 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 MEJ1 series of DC/DC converters are all 100% production tested at their stated isolation voltage. This is 5.2kVDC for 1 second.
A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?”
The MEJ1 series has been recognized by Underwiters Laboratory for various voltages, 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. We therefore strongly advise against repeated high voltage isolation testing, but if it is absolutely required, that the voltage be
reduced by 20% from specified test voltage.
SAFETY APPROVAL
ANSI/AAMI ES60601-1
The MEJ1 series has been tested by Underwriters Laboratory (UL) to meet ANSI/AAMI ES60601-1 medical safety standard providing the following MOOP (means of operator
protection), in a maximum ambient temperature of 85°C and/or case temperature limit of 155°C (case temperature measured on the face opposite the pins): 1 MOOP based upon
a working voltage of 200 Vrms max and 280 Vpk max., between Primary and Secondary and between Primary and its Enclosure. File Number E202895 applies.
UL 60950
The MEJ1 series has been recognized by Underwriters Laboratory (UL) to UL 60950 for basic/supplementary insulation to a working voltage of 200Vrms in a maximum ambient
temperature of 85°C and/or case temperature limit of 130°C (case temperature measured on the face opposite the pins). File number E151252 applies.
FUSING
The MEJ1 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.
MEJ1x03xxSC 1A
MEJ1x05xxSC 1A
MEJ1x12xxSC 500mA
MEJ1x15xxSC 500mA
MEJ1x24xxSC 250mA
All fuses should be UL recognized 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 260ºC for 10 seconds. The pin termination finish
on this product series is Tin Plate, Hot Dipped over Matte Tin with Nickel Preplate. The series is backward compatible with Sn/Pb soldering
systems. For further information, please visit www.murata-ps.com/rohs
www.murata-ps.com/support
KDC_MEJ1_C01 Page 3 of 9
MEJ1 Series
5.2kVDC Isolated 1W DC/DC Converters
APPLICATION NOTES
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 and 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.
MEJ1S0303SC
MEJ1S0305SC
MEJ1S0503SC
MEJ1S0505SC
MEJ1S0509SC
MEJ1S0512SC
MEJ1S0515SC
MEJ1S1203SC
MEJ1S1205SC
MEJ1S1209SC
MEJ1S1212SC
MEJ1S1215SC
MEJ1S1505SC
MEJ1S1509SC
MEJ1S1512SC
MEJ1S1515SC
MEJ1S2405SC
MEJ1S2409SC
MEJ1S2412SC
MEJ1S2415SC
Start-up time
μs
900
2000
500
2000
3200
7500
10500
600
1200
2900
2900
3900
1100
2400
2700
3800
1700
2300
2200
3600
MEJ1D0503SC
MEJ1D0505SC
MEJ1D0509SC
MEJ1D0512SC
MEJ1D0515SC
MEJ1D1203SC
MEJ1D1205SC
MEJ1D1209SC
MEJ1D1212SC
MEJ1D1215SC
MEJ1D1505SC
MEJ1D1509SC
MEJ1D1512SC
MEJ1D1515SC
MEJ1D2405SC
MEJ1D2409SC
MEJ1D2412SC
MEJ1D2415SC
Typical Start-Up Wave Form
Start-up time
μs
700
1600
3700
4200
7000
600
1200
3600
3900
6000
1200
3200
3300
4800
1100
2000
3300
6400
Ripple & Noise Characterisation Method
Ripple and noise measurements are performed with the following test configuration.
C1
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
C2
than 100mΩ at 100 kHz
C3
100nF multilayer ceramic capacitor, general purpose
R1
450Ω resistor, carbon film, ±1% tolerance
R2
50Ω 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
C1 C2 C3
+
SUPPLY
Input
-
+
R1
T1
R2
Y INPUT
Output
-
R LOAD
www.murata-ps.com/support
KDC_MEJ1_C01 Page 4 of 9
MEJ1 Series
5.2kVDC Isolated 1W DC/DC Converters
TOLERANCE ENVELOPES
The voltage tolerance envelope shows typical load regulation characteristics for this product series. The tolerance envelope is the maximum output voltage variation due to
changes in output loading.
DUAL 1203,1515, 2412, SINGLE 0303, 0305, 1203
DUAL 1209, 1509, 2409
+5%
+3%
+1%
Output Voltage
Output Voltage
+2%
-1%
0%
-3%
-7%
10
25
50
75
10
100
25
Output Load Current (%)
DUAL 0515, SINGLE 1515, 2415
100
75
50
Output Load Current (%)
DUAL 1512, SINGLE 1212, 1512, 2412
+2%
0%
-1%
Output Voltage
Output Voltage
+2%
0%
0%
-5%
-4%
10
25
50
75
100
10
25
Output Load Current (%)
50
75
100
Output Load Current (%)
DUAL 0512, SINGLE 1209, 1509,
DUAL 1212, 1215, 2415, SINGLE 0509, 0512, 1215, 2409
+5%
+2%
+1%
-1%
Output Voltage
Output Voltage
+2%
-1%
-4%
-4%
10
25
50
Output Load Current (%)
75
100
10
25
50
75
100
Output Load Current (%)
www.murata-ps.com/support
KDC_MEJ1_C01 Page 5 of 9
MEJ1 Series
5.2kVDC Isolated 1W DC/DC Converters
TOLERANCE ENVELOPES
SINGLE 1205, 1505, 2405, 0515
DUAL 1205, 0505, 1505, 2405
+2%
+3%
0%
Output Voltage
+5%
Output Voltage
+4%
+1%
-3%
10
25
50
75
100
-2%
10
25
50
75
100
Output Load Current (%)
Output Load Current (%)
DUAL 0509, 0503, SINGLE 0503, 0505
Output Voltage
+6%
+1%
+1%
-4%
10
25
50
75
100
Output Load Current (%)
www.murata-ps.com/support
KDC_MEJ1_C01 Page 6 of 9
MEJ1 Series
5.2kVDC Isolated 1W DC/DC Converters
EFFICIENCY VS LOAD Single Output
5V Input
90
90
70
70
Efficiency (%)
Efficiency (%)
3.3V Input
50
30
50
MEJ1S0503SC
MEJ1S0505SC
MEJ1S0509SC
30
MEJ1S0305SC
MEJ1S0512SC
MEJ1S0303SC
MEJ1S0515SC
10
10
0
0
0
10
20
30
40
50
60
70
80
90
100
0
10
20
30
40
12V Input
60
90
70
70
50
MEJ1S1203SC
MEJ1S1205SC
MEJ1S1209SC
30
80
90
100
90
100
50
MEJ1S1505SC
MEJ1S1509SC
30
MEJ1S1212SC
MEJ1S1512SC
MEJ1S1215SC
MEJ1S1515SC
10
0
70
15V Input
90
Efficiency (%)
Efficiency (%)
50
Load (%)
Load (%)
10
0
10
20
30
40
50
60
70
80
90
100
Load (%)
0
0
10
20
30
40
50
60
70
80
Load (%)
24V Input
90
Efficiency (%)
70
50
MEJ1S2405SC
MEJ1S2409SC
30
MEJ1S2412SC
MEJ1S2415SC
10
0
0
10
20
30
40
50
60
70
80
90
100
Load (%)
www.murata-ps.com/support
KDC_MEJ1_C01 Page 7 of 9
MEJ1 Series
5.2kVDC Isolated 1W DC/DC Converters
EFFICIENCY VS LOAD Dual Output
12V Input
90
90
70
70
50
Efficiency (%)
Efficiency (%)
5V Input
MEJ1D0503SC
MEJ1D0505SC
MEJ1D0509SC
30
50
MEJ1D1203SC
MEJ1D1205SC
MEJ1D1209SC
30
MEJ1D0512SC
MEJ1D1212SC
MEJ1D1215SC
MEJ1D0515SC
10
10
0
0
10
20
30
40
50
60
70
80
90
0
100
0
10
20
30
40
Load (%)
15V Input
60
90
70
70
50
MEJ1D1505SC
MEJ1D1509SC
30
80
90
100
90
100
50
MEJ1D2405SC
MEJ1D2409SC
30
MEJ1D1512SC
MEJ1D2412SC
MEJ1D1515SC
MEJ1D2415SC
10
0
70
24V Input
90
Efficiency (%)
Efficiency (%)
50
Load (%)
10
0
10
20
30
40
50
Load (%)
60
70
80
90
100
0
0
10
20
30
40
50
60
70
80
Load (%)
www.murata-ps.com/support
KDC_MEJ1_C01 Page 8 of 9
MEJ1 Series
5.2kVDC Isolated 1W DC/DC Converters
PACKAGE SPECIFICATIONS
MECHANICAL DIMENSIONS
PIN CONNECTIONS
9.95 [0.392] MAX
Single Output
0.40 [0.016] MIN
19.65 [0.774] MAX
12.65 [0.498] MAX
Pin
Function
1
2
5
7
+Vin
-Vin
-Vout
+Vout
4.10±0.50 [0.161±0.020]
1
2
5
6* 7
2.54 [0.100]
0.50 [0.020]±0.05
Dual Output
0.25 [0.010]±0.05
Pin
Function
1
2
5
6*
7
+VIN
-VIN
-VOUT
OV
+VOUT
*
2.93
2.13
[ 0.115
0.084 ]
15.24 [0.600]
2.95
1.62
0.064 ]
[ 0.116
All dimensions in mm ±0.25mm (inches ±0.01). All pins on a 2.54 (0.1) pitch and within
±0.25 (0.01) of true position.
* Pin not fitted on single output variants.
TUBE OUTLINE DIMENSIONS
6.00
(0.236)
Weight: 4.3g
RECOMMENDED FOOTPRINT DETAILS
14.20 (0.559)
x5 HOLES Ø 1.15
1.00
0.039 ]
[ Ø0.045
5.00 (0.197)
2.54 [0.100]
5.20 (0.205)
1.50 (0.059)
0.6±0.15
(0.024±0.006)
2.54 [0.100]
Unless otherwise stated all dimensions in mm ±0.5mm (inches ±0.02).
Tube length : 20.669±0.079 (525mm±2mm).
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
ISO 9001 and 14001 REGISTERED
Tube Quantity : 25
* Hole not required for single output variants.
All dimensions in mm ±0.25mm (inches ±0.01).
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. 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.
© 2014 Murata Power Solutions, Inc.
www.murata-ps.com/support
KDC_MEJ1_C01 Page 9 of 9