MGJ6 Full Bridge Series
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5.7kVDC Isolated 6W Triple Output Gate Drive SM DC-DC Converters
SELECTION GUIDE
Rated Output Current
Output Power
Rated Output Voltage
Rated Output Current
Output Power
V
V
mA
W
V
mA
W
4.5 - 9
24
62.5
1.5
24
125
3
Order Code1
Input
Voltage
Range
FEATURES
No opto feedback
9 - 18
24
62.5
1.5
24
125
3
MGJ6T24F24MC
18 - 36
24
62.5
1.5
24
125
3
SELECTION GUIDE (Continued)
Input
Voltage
Range
5.7kVDC isolation test voltage ‘Hi Pot Test’
Ultra low isolation capacitance typically
15pF
%
V
mVp-p
Ripple & Noise (Max)2
Order Code1
Ripple & Noise (Typ)2
Characterised partial discharge performance
Load Regulation (Typ)
Characterised CMTI >100kV/μS
Ripple & Noise (Max)2
ANSI/AAMI ES60601-1, 2 MOPP recognised
Output 3 VL
Load Regulation (Max)
Output 1 VHA / Output 2 VHB
Ripple & Noise (Typ)2
Reinforced insulation to UL60950 with 8mm
creepage & clearance recognised
MGJ6T12F24MC
Load Regulation (Max)4
Three isolated output voltages suitable
for IGBT/SiC & Mosfet gate drives in a full
bridge configuration
MGJ6T05F24MC
Load Regulation (Typ)4
Patent protected
Output 3 VL
Rated Output Voltage
Output 1 VHA / Output 2 VHB
%
mVp-p
Continuous barrier withstand voltage 3kVDC
MGJ6T05F24MC
4.5 - 9
2
3
100
150
2
3
100
150
5V, 12V & 24V input voltages
MGJ6T12F24MC
9 - 18
2
3
150
200
2
3
150
200
MGJ6T24F24MC
18 - 36
2
3
150
200
2
3
150
200
For full details go to
https://www.murata.com/englobal/products/power/rohs
Telecordia
MIL 217
Efficiency
(Typ)
Order Code1
MTTF3
Efficiency
(Min)
Offering Three isolated output voltages of 24V, the
MGJ6-FB series of DC-DC converters is ideal for
simultaneously powering ‘high side’ and ‘low side’
gate drive circuits for IGBTs, Silicon and Silicon
Carbide Mosfets in full bridge circuits. The MGJ6-FB
series is characterised for high isolation and dv/dt
requirements commonly seen in bridge circuits used
in motor drives and inverters.
SELECTION GUIDE (Continued)
Input Current
at Rated Load
PRODUCT OVERVIEW
Nominal Input
Voltage
105°C operating temperature
V
mA
MGJ6T05F24MC
5
1500
76
%
80
686
kHrs
2706
MGJ6T12F24MC
12
600
81
84
885
1971
MGJ6T24F24MC
24
300
82
85
885
1917
1. Components are supplied in tape and reel packaging, please refer to tape and reel specification section. Orderable part numbers are
wwMGJ6TXXF24MC-R7 (23 pieces per reel), or MGJ6TXXF24MC-R13 (92 pieces per reel).
2. See ripple & noise test method.
3. Calculated using MIL-HDBK-217 FN2 and Telecordia SR-332 calculation model at TA=25°C with nominal input voltage at full load.
4. Between 50% and 100% rated output current.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
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KDC_MGJ6C-FB.D01 Page 1 of 19
MGJ6 Full Bridge Series
5.7kVDC Isolated 6W Triple Output Gate Drive SM DC-DC Converters
INPUT CHARACTERISTICS
Parameter
Voltage range
Under voltage lock out
Input ripple current
Conditions
Min.
Typ.
Max.
5V input types
4.5
5
9
12V input types
9
12
18
24V input types
18
24
36
Turn on threshold MGJ6T05
3.8
Turn off threshold MGJ6T05
3.2
Turn on threshold MGJ6T12
8.1
Turn off threshold MGJ6T12
7.5
Turn on threshold MGJ6T24
16.7
Turn off threshold MGJ6T24
16.3
5V input types
30
12V input types
45
24V input types
30
Units
V
V
mA
p-p
OUTPUT CHARACTERISTICS
Parameter
Conditions
Minimum load
Voltage set point accuracy
Total regulation
Line regulation
Below 10% load, output may rise to 30V maximum voltage
All output types
Min.
Typ.
Max.
Units
0.5
10
1
%
%
%
%
Typ.
Max.
Units
10
+3 / -2
Low line to high line
GENERAL CHARACTERISTICS
Parameter
Conditions
Power Consumption
Switching frequency
Disable pin pulled low
Min.
45
100
mW
kHz
ISOLATION CHARACTERISTICS
Parameter
Isolation test voltage
Resistance
Continuous barrier withstand voltage
UL60950-1
Safety standard
ANSI/AAMI ES60601-1
Creepage & clearance
Isolation capacitance
Conditions
Min.
Flash tested for 1 second (input to output)
Flash tested for 1 second (output to output)
Qualification tested for 1 minute (input to output)
Qualification tested for 1 minute (output to output)
Viso = 1kVDC
Non-safety barrier application
Reinforced
2 MOPP
Input to output
Output to output
Primary to Output 1 VHA
Primary to Output 2 VHB
Primary to Output 3 VL
4000
2500
5700
3000
100
Typ.
Max.
Units
VAC
VDC
3000
250
250
8
8
15
15
15
GΩ
VDC
Vrms
mm
pF
TEMPERATURE CHARACTERISTICS
Parameter
Conditions
Min.
Operation
Storage
See derating graphs
-40
-55
Product temperature rise above ambient
100% Load, Nom VIN, Still Air
Typ.
5V input types
All other input types
Max.
105
125
25
19
Units
°C
ABSOLUTE MAXIMUM RATINGS
Short-circuit protection
Input voltage, MGJ6-FB 5V input types
Input voltage, MGJ6-FB 12V input types
Input voltage, MGJ6-FB 24V input types
Continuous
12V
20V
40V
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KDC_MGJ6C-FB.D01 Page 2 of 19
MGJ6 Full Bridge Series
5.7kVDC Isolated 6W Triple Output Gate Drive SM 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 MGJ6-FB series of DC-DC converters are all 100% production tested at 4kVACrms for 1 second from input to output and 2.5kVACrms for 1
second from output to output. Also they are all qualification tested at 5.7kVDC for 1 minute from input to output and 3kVDC for 1 minute from output to output.
The MGJ6-FB series is recognised by Underwriters Laboratory, please see safety approval section for more information. When the insulation in the MGJ6-FB series is
not used as a safety barrier, i.e. provides functional isolation only, continuous or switched voltages across the barrier up to 3kV are sustainable. This is established by
measuring the partial discharge Inception voltage in accordance with IEC 60270. Please contact Murata for further information.
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 MGJ6-FB series is recognised by Underwriters Laboratory (UL) to ANSI/AAMI ES60601-1 and provides 2 MOPP (Means Of Patient Protection) based on a working
voltage of 250vrms.
UL60950
The MGJ6-FB series is recognised by Underwriters Laboratory (UL) to UL60950 for reinforced insulation to a working voltage of 250Vrms with a maximum measured product
operating temperature of 130°C.
Creepage and clearance 8mm, input to output & across outputs.
Working altitude 5000m
Over voltage category (OVC) II
FUSING
The MGJ6-FB 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.
Input Voltage, 5V 4A
Input Voltage, 12V 2A
Input Voltage, 24V 1A
All fuses should be UL recognised, 250Vac rated.
RoHS COMPLIANCE, MSL, PSL AND REFLOW SOLDERING INFORMATION
This series is compatible with Pb-Free soldering systems and is also backward compatible with Sn/Pb soldering systems.
The MGJ6 full bridge series has a process, moisture, and reflow sensitivity classification of MSL2 PSL R7F as defined in
J-STD-020 and J-STD-075. Please refer to application notes for further information. This translates to: MSL2 = 1 year
floor life, PSL R7F = Peak reflow temperature 245°C with a limitation on the time above liquidus (217°C) which for this
series is 90sec max. The pin termination finish on this product series is Gold with Nickel Pre-plate.
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KDC_MGJ6C-FB.D01 Page 3 of 19
MGJ6 Full Bridge Series
5.7kVDC Isolated 6W Triple Output Gate Drive SM DC-DC Converters
ENVIRONMENTAL VALIDATION TESTING
The following tests have been conducted on this product series, please contact Murata if further information about the tests is required.
Test
Standard
Condition
Temperature cycling MIL-STD-883 Method 1010, Condition B
10 cycles between two chambers set to achieve -55°C and +125°C.The dwell time shall not be less than 10min
and the load shall reach the specified temperature in 15min.
Humidity bias
JEDEC JESD22-A101
85±2°C, 85±5% R.H. for 1000 (+168/-24) hours.
High Temperature
Storage life
JEDEC JESD22-A103, Condition A
125°C +10/-0°C for ≥1000 hours.
Vibration
5 – 150Hz. Level at each axis – Vertical, Traverse and Longitudinal: 5.72m/s2 rms. 5 hours in each axis. Crest factor:
BS EN 61373 with respect to BS EN
60068-2-64, Test Fh Category 1 Class B 3 Sigma. Device is secured via surface mount pins.
Solderability
The parts are conditioned in a steam ager for 8 hours ±15 min. at a temperature of 93±3°C. SnPb
(Test S): The parts are placed onto a stencil with Sn60Pb40 solder paste on and then placed into the reflow oven at
EIA/IPC/JEDEC J-STD-002, Test S and S1 215 ±5°C for 50–70 seconds.
Pb-free (Test S1): The parts are placed onto a stencil with Sn96.5Ag3.0Cu0.5 solder paste on and then placed into
the reflow oven at 245 ±5°C for 30–60 seconds.
Solvent cleaning
Resistance to cleaning agents.
Solvent – Novec 71IPA & Topklean EL-20A. Pulsed ultrasonic immersion 45°C - 65°C
Solvent Resistance
MIL-STD-883 Method 2015
The parts and the bristle portion of the brush are immersed in Isopropanol for a minimum of 1 minute. The parts are
brushed 3 times, after the third time the parts are blown dry and inspected.
Moisture sensitivity
level (MSL 2)
Based on IPC/JEDEC J-STD-020
Bake samples at 125 +5/-0°C for 24hours minimum before conditioning in the temperature/humidity chamber for
168 hours at 85°C/60%RH and Pb Free JEDEC Max profile conditioning with electrical testing, co-planarity inspection before and after.
PART NUMBER STRUCTURE
MGJ 6 T XX F XX M C -RXX
Series name
Packaging code
Power rating
R7 - 7 inch reel
R13 - 13 inch reel
Output type
S - Single
D - Dual
T - Triple
Q - Quad
Input voltage
RoHS compliant
Package type
S - SIP
D - DIP
M - Surface mount
Z - ZIP
Output voltage
Topology
F - Full bridge
H - Half bridge
Q - Three phase
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KDC_MGJ6C-FB.D01 Page 4 of 19
MGJ6 Full Bridge Series
5.7kVDC Isolated 6W Triple Output Gate Drive SM DC-DC Converters
CHARACTERISATION TEST METHODS
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
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.
C2
Differential Mode Noise Test Schematic
DC/DC Converter
OSCILLOSCOPE
C1 C2 C3
+
SUPPLY
Input
-
+
R1
T1
R2
Y INPUT
Output
-
R LOAD
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KDC_MGJ6C-FB.D01 Page 5 of 19
MGJ6 Full Bridge Series
5.7kVDC Isolated 6W Triple Output Gate Drive SM DC-DC Converters
APPLICATION NOTES
Disable/Frequency synchronisation
Please refer to application notes for further information.
Min
Pull Down Current
Disable/Sync1
Input High
Input Low
Frequency Range
Synchronisation
Duty Cycle
The Disable/Synchronization pin has three modes:
1.
2.
3.
Typ
0.5
2
-0.6
90
25
100
Max
60
0.8
110
75
Units
mA
V
V
kHz
%
When a DC logic low voltage is applied to this pin the MGJ6-FB is disabled and enters a low quiescent current sleep mode.
When this pin is left floating or a DC logic high (CMOS/TTL compatible) voltage is applied the MGJ6-FB is enabled and operates at the programmed frequency of
100kHz.
When a square wave of between 90kHz and 110kHz is applied to this pin, the switcher operates at the same frequency as the square wave. The falling edge of the
square wave corresponds to the start of the switching cycle. If the signal is slower than 25Hz, it will be interpreted as enabling and disabling the part. If the MGJ6-FB
is disabled, it must be disabled for 7 clock cycles before being re-enabled.
Note: The Dis/Sync pin is a high impedance TTL input and can be triggered by noise from external circuits if not treated carefully.
Please refer to “LAYOUT CONSIDERATIONS” and “SYNCHRONISATION CIRCUIT” for further details.
Click here for general guidance for gate drive applications.
LAYOUT CONSIDERATIONS
Unlike standard isolated DC-DC products the MGJ6-FB series has been designed specifically for high side gate drive applications where the outputs are being driven to a
high voltage at a very high dV/dT. This is possible due to minimum transformer isolation capacitance and considered circuit design regarding common mode transient immunity. It is important that these few simple pcb layout guidelines are implemented so as not to compromise the performance of the DC-DC and that of the overall system.
1.
The keep clear area shown must not have any copper traces even on internal layers. This is not only to avoid compromising the creepage and clearance distance but
also to minimise capacitive isolation between the noisy output circuits and input control circuits. In general it is good practice to maintain the same band of clearance
area running directly through both the DC-DC and the gate drive isolators as shown so that input and output are kept separate and do not overlap or mesh together
at any point.
2.
A top layer ground plane copper area connected to –Vin can be used to create an effective screen to the underside of the MGJ6-FB series and can also be used as a
guard ring for the gate drive isolator inputs. If the Dis/Synch pin is being used then it is imperative that it follows a route covered by this screen to avoid differential
pick up. It should also be kept as short as possible.
Please refer to “PACKAGE SPECIFICATIONS” for recommended layout.
SYNCHRONISATION CIRCUIT
U1
C1
100nF
DIS/Sync
D1
R1
10kΩ
Vin-
Sync
U2
C2
100nF
DC-DC 1
DIS/Sync
D2
R2
10kΩ
Vin-
DC-DC 2
1.
A suggested synchronisation circuit is shown. C1 and C2 are 100nF capacitors. D1 and D2 are schottky diodes. The capacitive isolation and close connected diode
ensures that a transition from high to low is seen at the input pin even in a noisy environment or when there is a slight ground shift between devices.
2.
If the Dis/Sync pin is not used for synchronisation, then a 22nF capacitor can be added between the Dis/Sync pin and –Vin pin to improve noise immunity. If the
functionality of Dis/Sync is not required, the Dis/Sync pin can be connected directly to the +Vin pin to improve noise immunity.
3.
One very effective method to reduce common mode transient interference is to add a common mode filter to the DC input. It may only be necessary to add one
before splitting the supply to each DC-DC.
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KDC_MGJ6C-FB.D01 Page 6 of 19
MGJ6 Full Bridge Series
5.7kVDC Isolated 6W Triple Output Gate Drive SM DC-DC Converters
APPLICATION NOTES (Continued)
Start-up times
Typical start up times for this series, with recommended
maximum additional output capacitance are:
Output capacitance must not exceed:
Start-up times
ms
30
30
30
Part No.
MGJ6T05F24MC
MGJ6T12F24MC
MGJ6T24F24MC
Maximum output
capacitance
μF
27
27
56
Output Voltage
V
24 VHA
24 VHB
24 VL
Output configurations for power switches
There are several zener based divider circuits that can be used to configure a bipolar output for gate drives as shown below. The table below shows suggested component
values for various power switches using circuit A.
Component
IGBT
SIC
MOSFET
Zener diode1
9V1
5V1
9V1
Resistor
15K
18K
15K
1. Suggested zener diode is BZX84C.
+24V
+24V
+Vgate
+24V
+Vgate
Vdd
IGBT
0V
0V
GATE
DRIVER Out
Vss
0V
-Vgate
0V
-Vgate
0V
A
B
C
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KDC_MGJ6C-FB.D01 Page 7 of 19
MGJ6 Full Bridge Series
5.7kVDC Isolated 6W Triple Output Gate Drive SM DC-DC Converters
APPLICATION NOTES (Continued)
Schematic for driving IGBT
D9
C5
R9
D7
R10
D8
Q7
R11
Q9
D11
Q12
D12
R15
Q5
Q8
Q11
D5
R6
Q6
D6
C4
R5
C3
C2
LO PWM DRIVE C
7 VL RTN
-Vin8
4 VHB RTN
5 VHB +24V
2 VHA RTN
6VL +24V
DIS/SYNC 1
+Vin9
HI PWM DRIVE A
3VHA +24V
R8
R3
C1
R4
D3
R7
R2
Q4
D4
D2
Q3
D1
R1
Q1
Q2
C6
R12
C7
D10
R14
R16
R13
C8
HI PWM DRIVE B
LO PWM DRIVE D
The following circuit shows an example of a complete full bridge and how the DC-DC would be connected using the zener divider in circuit A (page 5).
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KDC_MGJ6C-FB.D01 Page 8 of 19
MGJ6 Full Bridge Series
5.7kVDC Isolated 6W Triple Output Gate Drive SM DC-DC Converters
APPLICATION NOTES (Continued)
Schematic for driving IGBT
10
R20
C6
10μ
D9
D8
Q7
D5
Q4
10
R19
D6
C4
10μ
LO PWM
DRIVE C
7VL RTN
-Vin 8
DIS/SYNC 1
6VL +24V
R8
10
R17
C3
10μ
R5
R7
Q6
D4
R6
Q5
Q8
R10
D7
Q9
R11
R9
C5
10μ
10
R18
R12
LO PWM
DRIVE D
For some high frequency applications where each low side device has a kelvin sense terminal or it is necessary to connect the gate drive supply as close to the device
terminal as possible the following circuit can be used. By adding 10 Ohm resistors in the positive and negative gate supply lines to each gate drive circuit it is possible to
create a high frequency separation between the supplies. This means it is possible to significantly reduce the emitter inductance in the gate driving loop without the need
for separate isolated supplies
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KDC_MGJ6C-FB.D01 Page 9 of 19
MGJ6 Full Bridge Series
5.7kVDC Isolated 6W Triple Output Gate Drive SM DC-DC Converters
APPLICATION NOTES (Continued)
Schematic for Powering Three Phase Drivers on Electrical Vehicle Systems
D8
R10
Q9
C3
LO PWM DRIVE F
Q17
D18
D16
LO PWM DRIVE E
Q5
C11
R24
C12
R21
C9
C10
R17
D15
R22
Q18
Q16
D27
R23
R18
D14
D13
Q13
Q15
R19
R20
HI PWM DRIVE B
D5
R6
Q6
D6
7 VL RTN
-Vin8
6 VL +24V
DIS/SYNC 1
4 VHB RTN
5 VHB +24V
2 VHA RTN
3 VHA +24V
+Vin9
LO PWM DRIVE D
7 VL RTN
-Vin8
4 VHB RTN
5 VHB +24V
2 VHA RTN
6 VL +24V
DIS/SYNC 1
+Vin9
3 VHA +24V
R8
C4
R5
C3
C2
C1
R4
D3
R7
Q4
D4
D2
Q3
D1
R3
Q1
Q2
R2
R1
HI PWM DRIVE A
D9
R24
C5
R12
C7
HI PWM DRIVE C
Q14
R13
C8
R16
D10
R11
Q7
D7
D11
Q12
R14
Q10
D12
R15
Q8
Q11
For three phase drives on an Electric Vehicle system it is sometimes necessary, for safety and diagnostic reasons to power the high side switches independently to the Low
side switches. This means that if a fault occurs on a the high side switch it is possible to disable all of the high side switches without disabling the low side switches. The
circuit below shows how two Full bridge MGJ6 units can be connected to achieve this.
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KDC_MGJ6C-FB.D01 Page 10 of 19
MGJ6 Full Bridge Series
5.7kVDC Isolated 6W Triple Output Gate Drive SM DC-DC Converters
APPLICATION NOTES (Continued)
-Vin8
0V
DIS/SYNC 1
7 VL RTN
6VL +24V
4 VHB RTN
5 VHB +24V
2 VHA RTN
3VHA +24V
+Vin9
+12Vin
F)
-24V 0.083A
-Vin8
7 VL RTN
6VL +24V
0V
DIS/SYNC 1
+Vin9
D)
-Vin8
3VHA +24V
7 VL RTN
+48V 0.083A
0V
0V
DIS/SYNC 1
7 VL RTN
4 VHB RTN
4 VHB RTN
-Vin8
5 VHB +24V
5 VHB +24V
6VL +24V
2 VHA RTN
2 VHA RTN
3VHA +24V
+Vin9
6VL +24V
6VL +24V
E)
4 VHB RTN
4 VHB RTN
-Vin8
5 VHB +24V
5 VHB +24V
7 VL RTN
2 VHA RTN
2 VHA RTN
DIS/SYNC 1
DIS/SYNC 1
A)
+Vin9
3VHA +24V
+24V 0.25A
B)
+Vin9
3VHA +24V
+96V 0.083A
0V
0V
-Vin8
0V
+84V 0.083A
0V
24V 0.083A
DIS/SYNC 1
7 VL RTN
6VL +24V
48V 0.042A
4 VHB RTN
5 VHB +24V
+72V 0.083A
C)
+Vin9
2 VHA RTN
3VHA +24V
+24V 0.028A
For convenience the three isolated 24V outputs have been labelled VHA (Voltage A for high side), VHB (Voltage B for high side), and VL (Voltage for low side) however they
can be swapped if this helps to improve system layout. It is recommended however that if VHA or VHB are used in place of VL that an additional 4.7uF ceramic capacitor is
added close to the output pins to reduce ripple voltage.
Any output can be connected in parallel with another and all three outputs can also be connected in series with one another. With the possibility of series and parallel
output connections a number of output configurations are possible. Some are shown below:
A) 24V @ 0.25A
B) 72V @ 0.083A output
C) 72V @ 0.028A, 48V @0.042A and 24V @ 0.083A
D) +48V/-24V @ 0.083A
Note: Any single 24V output can deliver up to 3W however the output
E) Non-isolated +24V to +96V boost converter @0.083A
power from all outputs combined must not exceed 6W
F) Non-isolated +12V to +84V boost converter @0.083A
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KDC_MGJ6C-FB.D01 Page 11 of 19
MGJ6 Full Bridge Series
5.7kVDC Isolated 6W Triple Output Gate Drive SM DC-DC Converters
APPLICATION NOTES (Continued)
SLIC Circuits
The output configuration shown below could be used for subscriber line interface circuits (SLIC’s), particularly for the Integrated Services Digital Network (ISDN) and also
for standard telecommunications circuits where a local power source is preferred to the telephone system power due to either the power quality of the telecommunications
system power supply or to avoid potential power line disturbances, such as lightning strikes and access switching, which will affect the target circuit function.
Another application area is in fibre-in-the-loop (FITL) or radio-in-the-loop (RITL) interfacing via a standard telecommunication SLIC, where the usual telecommunication
battery voltage is not available due to the transmission media in use (fibre or radio). In particular, FITL/RITL interfaces directly on PC cards, in local monitor and boost
circuits and at exchanges between the fibre/radio and wire media. The supply rails can be used for ringing generators as well as SLIC circuits or where both are combined,
such as in the AMD AM79R79 Ringing SLIC device (see figure 2). The -72V rail is used primarily for the generation of the ringing signal (VBAT1), the -48V rail is used to
supply in line access circuitry (VBAT2) and the -24V supply for the on-chip regulator for the logic interface (VNEG). Alternative devices from other manufacturers could use
the -24V output for their internal circuit supply and -72V for ringing.
AMD (Am7R79)
+Vin
-72V
VBAT1
-48V
VBAT2
-24V
0V
VNEG
DC
DIS/SYNC
-Vin
DC
A
TIP
B
RING
BGND
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KDC_MGJ6C-FB.D01 Page 12 of 19
MGJ6 Full Bridge Series
5.7kVDC Isolated 6W Triple Output Gate Drive SM DC-DC Converters
EFFICIENCY VS LOAD
MGJ6T12F24MC
90
80
80
70
70
60
60
Efficiency (%)
Efficiency (%)
MGJ6T05F24MC
90
50
40
50
40
30
30
20
20
10
10
0
0
10
20
30
40
50
60
70
80
90
100
10
20
30
40
50
60
70
80
90
100
Load (%)
Load (%)
MGJ6T24F24MC
90
80
70
Efficiency (%)
60
50
40
30
20
10
0
10
20
30
40
50
60
70
80
90
100
Load (%)
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KDC_MGJ6C-FB.D01 Page 13 of 19
MGJ6 Full Bridge Series
5.7kVDC Isolated 6W Triple Output Gate Drive SM DC-DC Converters
TEMPERATURE DERATING
Derating curves are based on IPC-9592. With no derating some components may be operating at the manufacturers maximum temperature ratings.
MGJ6T05F24MC
100
90
80
Low Vin
Nom Vin
70
High Vin
Load (%)
60
Low and Nom Vin, 100LFM
Low Vin, 200LFM
50
High Vin, 100LFM
40
Nom Vin, 200LFM
High Vin, 200LFM
30
Low Vin, 400LFM
20
Nom and High Vin, 400LFM
10
0
70
75
80
85
90
95
100
105
dĞŵƉĞƌĂƚƵƌĞ;ȗͿ
MGJ6T12F24MC
100
90
80
70
Load (%)
60
Low Vin
Nom and High Vin
50
100 LFM Low Vin
40
100 LFM Nom and High Vin
200 LFM All Vin
30
20
10
0
70
75
80
85
90
95
100
105
Temperature (°C)
MGJ6T24F24MC
100
90
80
70
Load (%)
60
50
Low and Nom Vin
High Vin
100 LFM All Vin
40
30
20
10
0
70
75
80
85
90
95
100
105
Temperature (°C)
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KDC_MGJ6C-FB.D01 Page 14 of 19
MGJ6 Full Bridge Series
5.7kVDC Isolated 6W Triple Output Gate Drive SM DC-DC Converters
EMC FILTERING AND SPECTRA
FILTERING
The following filter circuit and filter table shows the input filters typically required to meet conducted emissions limits for EN 55022 curve B using Quasi-Peak (pink line) and
average (green line) detectors according to CISPR22. The following plots show measurements of the positive (L1) and negative (L2) inputs for both Quasi-peak limit B adherence and Average limit B adherence. If a high dv/dt above 80kV/us is expected from output to input it is advised that a common mode filter is used on each output as this will
reduce the common mode current circulating between outputs and input and causing interference.
+VIN
C2
+VOUT
DC
R1
L1
C1
C4
C3
DC
-VIN
-VOUT
C1, C2 & C3 Polyester or ceramic capacitor
C4
Electrolytic capacitor (note R1 could be omitted if C4 has ESR >= R1)
TO MEET CURVE B
Part Number
MGJ6T05F24MC
MGJ6T12F24MC
MGJ6T24F24MC
C1
10μF
10μF
10μF
L1
1mH
1mH
1mH
Part Number
51105C
51105C
51105C
C2
1nF
1nF
1nF
C3
1nF
1nF
1nF
R1
1Ω
1Ω
1Ω
C4
470μF
470μF
470μF
MGJ6T05F24MC (Average)
80
80
70
70
60
60
50
50
dBuV
dBuV
MGJ6T05F24MC (Quasi Peak)
40
40
30
30
20
20
10
10
0
1.00E+05
1.00E+06
1.00E+07
0
1.00E+05
1.00E+08
80
80
70
70
60
60
50
50
40
30
20
20
10
10
1.00E+07
Frequency (Hz)
1.00E+08
40
30
1.00E+06
1.00E+07
MGJ6T12F24MC (Average)
dBuV
dBuV
MGJ6T12F24MC (Quasi Peak)
0
1.00E+05
1.00E+06
Frequency (Hz)
Frequency (Hz)
1.00E+08
0
1.00E+05
1.00E+06
1.00E+07
1.00E+08
Frequency (Hz)
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KDC_MGJ6C-FB.D01 Page 15 of 19
MGJ6 Full Bridge Series
5.7kVDC Isolated 6W Triple Output Gate Drive SM DC-DC Converters
EMC FILTERING AND SPECTRA (Continued)
MGJ6T24F24MC (Average)
80
80
70
70
60
60
50
50
dBuV
dBuV
MGJ6T24F24MC (Quasi Peak)
40
40
30
30
20
20
10
10
0
1.00E+05
1.00E+06
1.00E+07
Frequency (Hz)
1.00E+08
0
1.00E+05
1.00E+06
1.00E+07
1.00E+08
Frequency (Hz)
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KDC_MGJ6C-FB.D01 Page 16 of 19
MGJ6 Full Bridge Series
5.7kVDC Isolated 6W Triple Output Gate Drive SM DC-DC Converters
PACKAGE SPECIFICATIONS
MECHANICAL DIMENSIONS
PIN CONNECTIONS
Pin
Function
1
Dis/Sync
2
VHA RTN
3
VHA +24V
4
VHB RTN
5
VHB +24V
6
VL +24V
7
VL RTN
8
-Vin
9
+Vin
RECOMMENDED FOOTPRINT DETAILS
RECOMMENDED LAYOUT
-Vin GROUND PLANE
All dimensions in mm (inches), Controlling dimensions is mm.
Component shown for reference only.
NO COPPER IN THIS
AREA ON ANY LAYER
Weight: 17.3g
Please refer to “LAYOUT CONSIDERATIONS” for further details.
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KDC_MGJ6C-FB.D01 Page 17 of 19
MGJ6 Full Bridge Series
5.7kVDC Isolated 6W Triple Output Gate Drive SM DC-DC Converters
TAPE & REEL SPECIFICATIONS
REEL OUTLINE DIMENSIONS
Tape & Reel specifications shall conform with current EIA-481 standard
Unless otherwise stated all dimensions in mm (inches)
Controlling dimension is mm
# Measured at hub
## Six equi-spaced slots on 180mm/7” reel
REEL PACKAGING DETAILS
Reel Quantity: 7” - 23 or 13” - 92
Carrier tape pockets shown are illustrative only - refer to carrier tape diagram for actual pocket details
TAPE OUTLINE DIMENSIONS
Tape & Reel specifications shall conform with current EIA-481 standard
Unless otherwise stated all dimensions in mm (inches)
Controlling dimension is mm
Components shall be orientated within the carrier tape as indicated
# Measured on a plane 0.3mm above the bottom pocket
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KDC_MGJ6C-FB.D01 Page 18 of 19
MGJ6 Full Bridge Series
5.7kVDC Isolated 6W Triple Output Gate Drive SM DC-DC Converters
DISCLAIMER
Unless otherwise stated in the datasheet, all products are designed for standard commercial and industrial applications and NOT for safety-critical and/or life-critical
applications.
Particularly for safety-critical and/or life-critical applications, i.e. applications that may directly endanger or cause the loss of life, inflict bodily harm and/or loss or severe
damage to equipment/property, and severely harm the environment, a prior explicit written approval from Murata is strictly required. Any use of Murata standard products for any safety-critical, life-critical or any related applications without any prior explicit written approval from Murata shall be deemed unauthorised use.
These applications include but are not limited to:
•
Aircraft equipment
•
Aerospace equipment
•
Undersea equipment
•
Power plant control equipment
•
Medical equipment
•
Transportation equipment ( automobiles, trains, ships, etc.)
•
Traffic signal equipment
•
Disaster prevention / crime prevention equipment
•
Data Processing equipment
Murata makes no express or implied warranty, representation, or guarantee of suitability, fitness for any particular use/purpose and/or compatibility with any application or device of the buyer, nor does Murata assume any liability whatsoever arising out of unauthorised use of any Murata product for the application of the buyer. The
suitability, fitness for any particular use/purpose and/or compatibility of Murata product with any application or device of the buyer remain to be the responsibility and
liability of the buyer.
Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards that anticipate dangerous consequences of failures, monitor failures and their consequences, lessen the likelihood of failures that might cause harm, and take appropriate remedial actions. Buyer will fully indemnify and hold
Murata, its affiliated companies, and its representatives harmless against any damages arising out of unauthorised use of any Murata products in any safety-critical and/
or life-critical applications.
Remark: Murata in this section refers to Murata Manufacturing Company and its affiliated companies worldwide including, but not limited to, Murata Power Solutions.
This product is subject to the following operating requirements
and the Life and Safety Critical Application Sales Policy:
Refer to: https://www.murata.com/en-eu/products/power/requirements
Murata Power Solutions (Milton Keynes) Ltd. 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.
© 2022 Murata Power Solutions (Milton Keynes) Ltd.
www.murata.com
KDC_MGJ6C-FB.D01 Page 19 of 19
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