Document
www.murata-ps.com
SELECTION GUIDE
MEJ2 Series
5.2kVDC Isolated 2W DC/DC Converters
Nominal Input Voltage
Output Voltage Output Current Input Current at Rated Load Load Regulation
(Typ) Load Regulation
(Max) Ripple & Noise
(Typ)3 Ripple & Noise
(Max)3 Efficiency
(Min) Efficiency
(Typ) MTTF2
Order Code
FEATURES RoHS compliant Basic/supplementary isolation to UL 609502 ANSI/AAMI ES60601-1 Power density 0.81W/cm3 Single and dual outputs UL 94V-0 package material Footprint 1.96cm2 SIP package style 5.2kVDC isolation ‘Hi Pot Test’ 3.3V, 5V, 12V & 15V inputs 3.3V, 5V, 9V, 12V & 15V output Internal SMD construction Fully encapsulated with toroidal magnetics Pin compatible with the MEV, NMV, NMK, &
NMJ series MTTF up to 4.2 million hours
PRODUCT OVERVIEW
The MEJ2 series are single and dual output medically approved DC/DC converters in a 7 pin SIP package style offering a power upgrade path from the NMJ series SIP DC/DC converters. The MEJ2 series is UL 60950 and ANSI/AAMI ES60601-1 recognized, which makes it ideal for applications where safety and miniaturisation are of paramount importance.
MEJ2S0303SC MEJ2S0305SC MEJ2S0503SC MEJ2S0505SC MEJ2S0509SC MEJ2S0512SC MEJ2S0515SC MEJ2S1203SC MEJ2S1205SC MEJ2S1209SC MEJ2S1212SC MEJ2S1215SC MEJ2S1505SC MEJ2S1509SC MEJ2S1512SC MEJ2S1515SC MEJ2D0503SC MEJ2D0505SC MEJ2D0509SC MEJ2D0512SC MEJ2D0515SC MEJ2D1203SC MEJ2D1205SC MEJ2D1209SC MEJ2D1212SC MEJ2D1215SC MEJ2D1505SC MEJ2D1509SC MEJ2D1512SC MEJ2D1515SC
VV
mA
%
3.3 3.3 606 756 14.0 17
3.3 5 400 784 13.0 15
5 3.3 606 528 10.0 15
5 5 400 503 8.5 10
5 9 222 505 8.0 11
5 12 167 495 8.0 12
5 15 133 488 7.0 10
12 3.3 606 207 9.5 11
12 5 400 214 8.0 10
12 9 222 205 7.0 10
12 12 167 207 6.5 8
12 15 133 205 7.0 10
15 5 400 171 8.5 10
15 9 222 165 6.5 8
15 12 167 164 6.5 8
15 15 133 166 7.0 8
5 ±3.3 ±303 535 8.5 10
5 ±5 ±200 508 7.5 9
5 ±9 ±111 510 6.5 8
5 ±12 ±83 504 5.0 8
5 ±15 ±67 492 6.5 7
12 ±3.3 ±303 205 8.0 9
12 ±5 ±200 212 7.0 8
12 ±9 ±111 206 5.5 7
12 ±12 ±83 208 5.5 7
12 ±15 ±67 203 6.0 7
15 ±5 ±200 170 7.0 9
15 ±9 ±111 163 5.5 7
15 ±12 ±83 167 5.5 7
15 ±15 ±67 167 5.5 7
mVp-p 38 55 50 65 40 55 43 55 36 50 40 55 34 45 43 60 43 60 35 50 35 50 32 45 44 60 35 50 38 55 36 50 26 40 34 50 27 40 27 40 20 35 37 55 32 45 27 40 27 40 24 40 37 50 26 40 26 40 23 35
% 67 70 70 74 67 70 72 75 75 78 74 77 76 79 70 73 75 78 75 79 76 80 76 80 73 76 74 78 74 79 74 78 67 71 72 76 76 79 77 80 76 79 72 75 75 79 77 81 77 81 78 82 74 78 76 80 75 80 75 79
kHrs 3910 3757 3830 3654 3472 3663 2629 3259 3200 2453 2779 2707 2638 2203 2330 2100 3969 3654 3472 3663 2629 3270 3268 2453 2779 2707 2638 2203 2330 2100
INPUT CHARACTERISTICS
Parameter
Conditions
Continuous operation, 3V input types
Voltage range
Continuous operation, 5V input types Continuous operation, 12V input types
Continuous operation, 15V input types
3.3V input types
Input reflected ripple
5V input types
12V & 15V input types
Min. Typ. 2.97 3.3 4.5 5 10.8 12 13.5 15
100 60 22
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.
Max. 3.63 5.5 13.2 16.5 140 90 40
Units V
mA
For full details go to www.murata-ps.com/rohs
www.murata-ps.com/support
KDC_MEJ2_D01 Page 1 of 7
MEJ2 Series
5.2kVDC Isolated 2W DC/DC Converters
OUTPUT CHARACTERISTICS Parameter Rated Power2 Voltage Set Point Accuracy Line regulation
Conditions TA=-40ºC to 85ºC See tolerance envelopes High VIN to low VIN
Min.
ABSOLUTE MAXIMUM RATINGS Short-circuit protection Lead temperature 1mm from case for 10 seconds Input voltage VIN, MEJ2x03xxSC Input voltage VIN, MEJ2x05xxSC Input voltage VIN, MEJ2x12xxSC Input voltage VIN, MEJ2x15xxSC
ISOLATION CHARACTERISTICS
Parameter
Conditions
Isolation test voltage
Flash tested for 1 second
Resistance
Viso= 500VDC
Isolation capacitance
10 minutes 260°C 5V 7V 15V 18V
Min. 5200
GENERAL CHARACTERISTICS
Parameter
Conditions
Switching frequency
All types
Min.
TEMPERATURE CHARACTERISTICS
Parameter
Conditions
Specification
All output types (see safety approval section for limitations)
Storage
MEJ2S0509SC, MEJ2S0512SC, MEJ2S0515SC, MEJ2S1209SC, MEJ2x1212SC, MEJ2S1215SC, MEJ2S1509SC, MEJ2S1512SC, MEJ2S1515SC
MEJ2S0503SC, MEJ2S0505SC, MEJ2S1203SC, MEJ2S1205SC, MEJ2x1505SC, Case Temperature above ambient MEJ2S1515SC, MEJ2D0512SC, MEJ2D0515SC, MEJ2D1209SC, MEJ2D1215SC
MEJ2S0305SC, MEJ2S0303SC, MEJ2S1203SC, MEJ2D0505SC, MEJ2D0509SC, MEJ2D1205SC, MEJ2D1509SC, MEJ2D1512SC
MEJ2D01203SC, MEJ2D0503SC
Cooling
Free air convection
Min. -40 -55
Typ. Max. Units 2W
1.0 1.2 %/%
Typ. Max. Units VDC
1 GΩ 4 pF
Typ. Max. Units 45 kHz
Typ. Max. Units 85 125
27 °C
30 33 37
TEMPERATURE DERATING GRAPH
Output Power (W)
2.0 Safe
1.0 Operating Area
0.2
-40 0
40
8.