MGJ3 Series
5.2kVDC Isolated 3W SM DC/DC Converters
KDC_MGJ3C.A01 Page 1 of 8
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FEATURES
No opto feedback
Patents Pending
Optimised bipolar output voltages for IGBT/
SiC & Mosfet gate drives
3 outputs configurable for all gate drive
applications: +15V/-5V, +15V/-10V & +20V/-
5V outputs
Reinforced insulation to UL60950 pending
UL60601 (3rd Ed) recognition pending
Characterised dv/dt immunity 80kV/µs
Characterised partial discharge performance
5.2kVDC isolation test voltage ‘Hi Pot Test’
Ultra low coupling capacitance 15pF
SMD package
5V, 12V & 24V input voltages
PRODUCT OVERVIEW
Offering configurable triple output voltages of +15V,
+5V and +5V, the MGJ3 series of DC-DC converters
are ideal for powering ‘high side’ and ‘low side’ gate
drive circuits for IGBTs, Silicon Carbide and Mosfets
in bridge circuits.
A choice of asymmetric output voltages allows
optimum drive levels for best system efficiency
and EMI. The MGJ3 series is characterised for high
isolation and dv/dt requirements commonly seen in
bridge circuits used in motor drives and inverters.
A disable/frequency synchronisation pin, simplifies
EMC filter design. The MGJ3 protection features
include short circuit protection, over temperature
protection and overload protection.
SELECTION GUIDE
Order Code
Output 1 Output 2 Output 3
Rated Output Voltage
Rated Output Current
Output Power
Rated Output Voltage
Rated Output Current
Output Power
Rated Output Voltage
Rated Output Current
Output Power
VmAW VmAW VmAW
MGJ3T05150505MC 15 120 1.8 5 120 0.6 5 120 0.6
MGJ3T12150505MC 15 120 1.8 5 120 0.6 5 120 0.6
MGJ3T24150505MC 15 120 1.8 5 120 0.6 5 120 0.6
SELECTION GUIDE (Continued)
Order Code
Output 1 Output 2 Output 3
Load Regulation (Typ)
Load Regulation (Max)
Ripple & Noise (Typ)2
Ripple & Noise (Max)2
Load Regulation (Typ)
Load Regulation (Max)
Ripple & Noise (Typ)2
Ripple & Noise (Max)2
Load Regulation (Typ)
Load Regulation (Max)
Ripple & Noise (Typ)2
Ripple & Noise (Max)2
% mVp-p % mVp-p % mVp-p
MGJ3T05150505MC 3 10 65 200 3 10 30 75 3 10 30 75
MGJ3T12150505MC 3 10 75 200 3 10 30 75 3 10 30 75
MGJ3T24150505MC 3 10 75 200 3 10 30 75 3 10 30 75
SELECTION GUIDE (Continued)
Order Code
Nominal Input
Voltage
Input Current
at Rated Load
Efficiency
(Min)
Efficiency
(Typ)
Isolation Capacitance
MTTF1
V mA % pF kHrs
MGJ3T05150505MC 5 760 73 80 15
MGJ3T12150505MC 12 310 75 82 15
MGJ3T24150505MC 24 155 76 81 15
1. Calculated using MIL-HDBK-217 FN2 calculation model with nominal input voltage at full load.
2. See ripple & noise test method.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
MGJ3 Series
5.2kVDC Isolated 3W SM DC/DC Converters
KDC_MGJ3C.A01 Page 2 of 8
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INPUT CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Voltage range
5V input types 4.5 5 9
V
12V input types 9 12 18
24V input types 18 24 36
Under voltage lock out
Turn on threshold MGJ3T05 4.1
V
Turn off threshold MGJ3T05 3.0
Turn on threshold MGJ3T12 8.1
Turn off threshold MGJ3T12 7.5
Turn on threshold MGJ3T24 16.7
Turn off threshold MGJ3T24 16.1
Input ripple current
5V input types 45
mA p-p
12V input types 25
24V input types 15
OUTPUT CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Minimal load to meet datasheet specification 40 %
Voltage set point accuracy All output types ±4 %
Line regulation Low line to high line 2 %
Transient response
Peak deviation (50-100% & 100-50% swing) 3.2 %Vout
Settling time 0.2 ms
ISOLATION CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Isolation test voltage Flash tested for 1 second 5200 VDC
Resistance Viso = 1kVDC 100 GΩ
GENERAL CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Switching frequency 100 kHz
TEMPERATURE CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Operation -40 105
°C
Storage -50 125
Over temperature protection 180
Product temperature above ambient 100% Load, Nom VIN, Still Air 18
ABSOLUTE MAXIMUM RATINGS
Short-circuit protection (for SELV input voltages) Continuous
Input voltage, MGJ3 5V input types 12V
Input voltage, MGJ3 12V input types 20V
Input voltage, MGJ3 24V input types 40V
RoHS COMPLIANCE, MSL AND PSL INFORMATION
This series is compatible with RoHS soldering systems with a peak reflow solder temperature of 245ºC as per
J-STD-020D.1. The pin termination finish on this product series is Gold with Nickel Pre-plate. The series is backward
compatible with Sn/Pb soldering systems. The series has a Moisture Sensitivity Level (MSL) 1.
MGJ3 Series
5.2kVDC Isolated 3W SM DC/DC Converters
KDC_MGJ3C.A01 Page 3 of 8
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APPLICATION NOTES
Start-up times
Part No. Start-up times
ms
MGJ3T05150505MC 15
MGJ3T12150505MC 15
MGJ3T24150505MC 15
Output Voltage Maximum output
capacitance
F
15 120
5 220
Disable/Frequency synchronisation
Min Typ Max Units
Disable/Synch
Pull Down Current 0.5 mA
Input High 2 5 V
Input Low 0 0.8 V
Synchronisation Frequency Range 90 100 110 kHz
Duty Cycle 25 75 %
Output configurations for power switches
Terminal IGBT SIC MOSFET
(P10)
15V Output
+15V
0.12A
+20V
0.12A
+15V
0.15A
(P9)
15V Return
5VA Output
0V No connection 0V
(P7)
5VA Return
5VB Output
No connection 0V -5V
0.15A
(P8)
5VB Return
-10V
0.12A
-5V
0.12A No connection
Typical start up times for this series, with no additional output capacitance are:
Output capacitance must not exceed:
MGJ3 Series
5.2kVDC Isolated 3W SM DC/DC Converters
KDC_MGJ3C.A01 Page 4 of 8
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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 MGJ3 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 MGJ3 series is pending recognition 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
UL 60601
The MGJ3 series is pending recognition by Underwriters Laboratory (UL) to the 3rd edition of 60601 and provides 1 MOOP (means of operator protection) based upon a working
voltage of 250 Vrms max., between Primary and Secondary.
UL 60950
The MGJ3 series is pending recognition by Underwriters Laboratory (UL) to UL 60950 for reinforced insulation to a working voltage of 250Vrms.
CHARACTERISATION TEST METHODS
Ripple & Noise Characterisation Method
Ripple and noise measurements are performed with the following test configuration.
C1 1µF X7R m ultilayer ceramic capacitor, voltage rating to be a minimum of 3 times the output voltage of the DC/DC converter
C2 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 100m at 100 kHz
C3 100nF multilayer ceramic capacitor, general purpose
R1 450 resistor, carbon film, ±1% tolerance
R2 50 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
OSCILLOSCOPE
Y INPUT
SUPPLY
C1 C2 C3 R1 T1 R2
Input Output
DC/DC Converter
R LOAD
+
+
-
-
MGJ3 Series
5.2kVDC Isolated 3W SM DC/DC Converters
KDC_MGJ3C.A01 Page 5 of 8
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EFFICIENCY VS LOAD
MGJ3T05150505MC MGJ3T12150505MC
MGJ3T24150505MC
MGJ3 Series
5.2kVDC Isolated 3W SM DC/DC Converters
KDC_MGJ3C.A01 Page 6 of 8
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EMC FILTERING AND SPECTRA
FILTERING
MGJ3T05150505MC MGJ3T12150505MC
MGJ3T24150505MC
MGJ3 Series
5.2kVDC Isolated 3W SM DC/DC Converters
KDC_MGJ3C.A01 Page 7 of 8
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PACKAGE SPECIFICATIONS
MECHANICAL DIMENSIONS PIN CONNECTIONS
Pin Function
1 -Vin
3 Dis/Sync
7
5VA RTN
5VB
8 5VB RTN
9
15V RTN
5VA
10 15 Vout
16 +Vin
RECOMMENDED FOOTPRINT DETAILS
13 78
16 10 9
22.61 [0.890]
14.65
13.65
[
0.577
0.537
]
23.11 [0.910]
2.67 [0.105]
1.78 [0.070]
SMA PICKUP POINT
(TOP OF FERRITE CORE)
14.45
13.45
[
0.569
0.530
]
SMA PICKUP POINT
S
SEATING PLANE
17.78 [0.700]
15.24 [0.600]
5.08 [0.200]
19.05 [0.750]
All dimensions in mm (inches), Controlling dimensions is mm.
Tolerance (unless otherwise stated) ±0.25 (0.010).
Weight: 10.70 g
x7 PLACES
2.16 [0.085]
5.08 [0.200]
15.24 [0.600]
17.78 [0.700]
x7 PLACES
3.30 [0.130]
RECOMMENDED
ISOLATION BARRIER
19.05 [0.750]
2.54 [0.100]
2.54 [0.100]
0
MGJ3 Series
5.2kVDC Isolated 3W SM DC/DC Converters
KDC_MGJ3C.A01 Page 8 of 8
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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.
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
ISO 9001 and 14001 REGISTERED
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/
TAPE & REEL SPECIFICATIONS
REEL OUTLINE DIMENSIONS TAPE OUTLINE DIMENSIONS
REEL PACKAGING DETAILS
Product Orientation
Pin 1, located nearest to
carrier drive sprocket.
Reel Quantity: 500