Fuji Electric X Series Instructions for use

© Fuji Electric Co., Ltd. All rights reserved.MT6MMT6M15962a
Application Manual
Fuji 7th Generation IGBT-IPM
X Series
Oct. 2021

MT6M15962a © Fuji Electric Co., Ltd. All rights reserved. 1
Warning:
This manual contains the product specifications, characteristics, data, materials, and structures as of
October 2021.
The contents are subject to change without notice for specification changes or other reasons. When
using a product listed in this manual, be sure to obtain the latest specifications.
All applications described in this manual exemplify the use of Fuji's products for your reference only.
No right or license, either express or implied, under any patent, copyright, trade secret or other
intellectual property right owned by Fuji Electric Co., Ltd. is (or shall be deemed) granted. Fuji Electric
Co., Ltd. makes no representation or warranty, whether express or implied, relating to the
infringement or alleged infringement of other's intellectual property rights which may arise from the use
of the applications described herein.

MT6M15962a © Fuji Electric Co., Ltd. All rights reserved. 2
(1) During transportation and storage
Keep locating the shipping carton boxes to suitable side up. Otherwise, unexpected stress might
affect to the boxes. For example, bend the terminal pins, deform the inner resin case, and so on.
When you throw or drop the product, it gives the product damage.
If the product is wet with water, that it may be broken or malfunctions, please subjected to sufficient
measures to rain or condensation.
Temperature and humidity of an environment during transportation are described in the
specification sheet. There conditions shall be kept under the specification.
(2)Assembly environment
Since this power module device is very weak against electro static discharge, the ESD
countermeasure in the assembly environment shall be suitable within the specification described in
specification sheet. Especially, when the conducting pad is removed from control pins, the product
is most likely to get electrical damage.
(3)Operating environment
If the product had been used in the environment with acid, organic matter, and corrosive gas
(hydrogen sulfide, sulfurous acid gas), the product's performance and appearance can not be
ensured easily.
Cautions

MT6M15962a
1.
Typical application circuits
4-
2
2.
Important remarks
4-
6
3.
Optocoupler
peripheral circuits
4-
9
4.
Connector
4-
10
Chapter 4 Typical application circuits
© Fuji Electric Co., Ltd. All rights reserved. 4-1

MT6M15962a
1. Typical application circuits
© Fuji Electric Co., Ltd. All rights reserved.
Figure 4-1 shows the typical application circuits of P629 and P639 (6in1, only lower arm has alarm
signal output function.)
This chapter describes the typical application circuits of the X series IPM.
4-2
Fig.4-1 Typical application circuits of P629 and P639

MT6M15962a © Fuji Electric Co., Ltd. All rights reserved.
Figure 4-2 shows the typical application circuits of P626 and P636 (6in1)
4-3
Fig.4-2 Typical application circuits of P626 and P638
(b) When not using the upper arms alarm(a) When using the upper arms alarm

MT6M15962a © Fuji Electric Co., Ltd. All rights reserved.
Figure 4-3 shows the typical application circuits of P626, P630, P631, P636 and P638 (6in1, with
temperature warning function type).
4-4
Fig.4-3 Typical application circuits of P626, P630, P631, P636 and P638 (6in1, with temperature
warning function)
(b) When not using the upper arms alarm(a) When using the upper arms alarm
•If the temperature warning function is not used, open the WNG terminal.
If the WNG terminal is connected to the VCC terminal, the consumption current ICC increases
when the temperature of the IPM reaches the temperature warning level.

MT6M15962a © Fuji Electric Co., Ltd. All rights reserved.
Figure 4-4 shows the typical application circuits of P630, P631, P636 and P644 (7in1, with built-in
brake).
4-5
Fig.4-4 Typical application circuits of P630, P631, P636 and P644 (7in1)
(b) When not using the upper arms alarm(a) When using the upper arms alarm

MT6M15962a
2. Important remarks
© Fuji Electric Co., Ltd. All rights reserved.
2.1 Control power supply units
A total of four isolated power supply units; three for the upper arm and one for the lower arm are
required as shown in the application circuit examples. Mount an aluminum electrolytic capacitor (upper
arm: approx.50V/10μF, lower arm: approx.50V/47μF）as close as possible to the control power
terminal VCC of the IPM. This capacitor is not for smoothing the control power supply, but for
compensating the wiring impedance up to IPM. It is predicted that the use of only a single power supply
such as a bootstrap causes voltage fluctuations. Thus, careful consideration and verification are
required.
When using a commercially available power supply unit, do not use the output GND terminal of the
power supply unit. If the GND of the output side is connected to the + or − terminals, it may cause a
malfunction because each power supply unit is connected to the power ground of input side.
Furthermore, reduce the stray capacitance (floating capacitance) between the power supply unit and
the GND as much as possible.
In addition, use a power supply unit with sufficient Icc supply capacity and reduce output voltage
fluctuations.
4-6
2.2 Structural insulation between four power supply units (input portion connector and PCB)
The four power supply units and the main power source have to be insulated from each other.
Be sure to secure a sufficient insulation distance because high dv/dt is applied to this insulation part
during IGBT switching. (2 mm or longer is recommended)
2.3 GND connection
Do not connect the control terminal GND U and the main terminal U, control terminal GND V and
main terminal V, control terminal GND W and main terminal W, control terminal GND and main
terminal N (N1 and N2 in the case of P631) to external circuits. In that case, it may cause a malfunction.
2.4 External capacitors for control power supply
Capacitors of 10μF (47μF) and 0.1μF connected to each power supply unit shown in typical
application circuits are not used for smoothing the output voltage of the power supply units, but for
compensating the wiring impedance from the power supply unit up to the IPM. Additional smoothing
capacitors are required. Furthermore, these external capacitors should be connected as close as
possible to the IPM control terminals or optocoupler terminals because transient fluctuation occurs in
the wiring impedance between these capacitors and the control circuits.
An electrolytic capacitor which has low impedance and good frequency characteristics is
recommended. In addition, it is recommended to connect a film capacitor with good frequency
characteristics in parallel.

MT6M15962a © Fuji Electric Co., Ltd. All rights reserved.
2.6 Warning circuit (specific models only)
Since the X-IPM has a built-in 1.3kΩ warning output resistor, the optocoupler can be directly
connected without an external resistor. When connecting the optocoupler, make not only the wiring
between the optocoupler and the IPM as short as possible, but also the pattern layout that reduces the
stray capacitance between the primary and secondary sides of the optocoupler.
Since a dv/dt may cause the secondary side potential of the optocoupler to fluctuate, it is
recommended to connect a capacitor of about 10nF to the output terminal on the secondary side of the
optocoupler in order to stabilize the potential.
Also, when the temperature warning function is operating, the consumption current by VCC/RWNG
increases, so please consider the design of the power supply. If the temperature warning function is
not used, it is recommended to keep the WNG terminal open. If the warning terminal is pulled up to VCC,
the consumption current increases when the temperature warning function operates. Thus, design the
power supply properly. In addition, do not pull down the warning terminal to GND.
4-7
2.7 Pull-up of signal input terminal
Connect the control signal input terminals to VCC through a 20kΩ pull-up resistor.
Furthermore, unused input terminals also have to be pulled up to VCC through the 20kΩ resistor. If
these terminals are not pulled up to VCC, UV protection is activated and IPM cannot be operate.
2.8 Connection when there is an unused phase
If there are cases when a 6in1 (without brake part) is used in only single phase or a 7in1(with brake
part) is used without brake part, supply control voltage to these unused phase and connect the
input/alarm terminals to VCC to stabilize the potential of these terminals. The warning signal output
terminal is excluded.（refer to 4.2.6)
2.9 Handling of unconnected terminals (no contact terminals)
Unconnected terminals (no contact terminals) are not connected inside of the IPM. These terminals
are insulated from other terminals. There is no need of special treatment such as potential stabilization.
Also, guide pins are not connected inside of the IPM.
2.5 Alarm circuit
The X-IPM has a built-in 1.3kΩ alarm output resistor, so that an optocoupler can be connected to the
terminal directly without an external resistor. The wiring distance between the optocoupler and the IPM
should be as short as possible. Also, the pattern layout should be designed to minimize the floating
capacitance between the primary side and the secondary side of the optocoupler.
Since a dv/dt may cause the secondary side potential of the optocoupler to fluctuate, it is
recommended to connect a capacitor of about 10nF to the output terminal on the secondary side of the
optocoupler to stabilize the potential as shown in Figure 4-4.
Furthermore, regarding IPMs with an upper arm alarm output function, connect the alarm output
terminal to VCC as shown in Figure 4-4 (b) in order to stabilize the potential if the upper arm alarm
output function is not used.

MT6M15962a © Fuji Electric Co., Ltd. All rights reserved. 4-8
Fig.4-5 IPM input circuit and constant current operation timing
2.10 Snubber
Directly connect a snubber circuit to the P/N terminals as close as possible. For P631 package which
has two P/N terminals, it is effective to connect snubber circuits to both P1-N1 and P2-N2 terminals to
reduce surge voltage. Do not connect snubber circuits across the two terminals such as P1-N2 and P2-
N1 as it may cause a malfunction.
2.11 Grounding capacitor
Connect grounding capacitors between each AC input line and its ground to prevent noise from
flowing in the system.
.
2.12 Input circuit of IPM
There are constant current circuits in the input circuit of IPMs as shown in Figure 4-5(a).
The constant current of lin = 0.15 mA or lin = 0.65 mA flows at that timing shown in Figure 4-5(b).
The current of the secondary side of optocoupler is the sum of the constant current lin and the current
through a pull-up resistor IR. Therefore, it is necessary to determine the current of the primary side of
optocoupler IFso that sufficient current can flow in the secondary side of optocoupler. If IFis insufficient,
the secondary side may a malfunction.
* The operating time of the constant current circuit (0.65 mA) is the period until Vin reaches VCC.
It is about 5 μs at maximum.
(b) constant current operation timing
(a) IPM input circuit

MT6M15962a
3. Optocoupler peripheral circuits
© Fuji Electric Co., Ltd. All rights reserved.
3.1 Optocoupler for control input
3.1.1 Optocoupler rating
Use an optocoupler that satisfies the following characteristics.
•CMH = CML > 15kV/μs or 10kV/μs
•tpHL = tpLH < 0.8μs
•tpLH –tpHL = -0.4～0.9μs
•CTR > 15%
Example:
HCPL-4504 by Broadcom
TLP759 (IGM) by Toshiba
TLP2958 by Toshiba
PS9513 by Renesas Electronics
Pay attention to safety standards such as UL and VDE.
The reliability and characteristics of these optocouplers are not guaranteed by Fuji Electric.
4-9
3.1.2 Primary side current limiting resistor
The current limiting resistor on the primary side should be selected so that sufficient current can flow
on the secondary side. Also, deterioration of CTR of the optocoupler over time should be considered in
the design of the current limiting resistor.
3.1.3 Wiring between optocoupler and IPM
The wiring distance between the optocoupler and the IPM should be short as much as possible to
reduce the wiring impedance. Make sure that the primary and secondary lines of the optocoupler are
not close together to reduce the floating capacitance. A high dv/dt is applied between the primary side
and the secondary side.

MT6M15962a © Fuji Electric Co., Ltd. All rights reserved.
3.2 Optocoupler for alarm signal output and temperature warning output
3.2.1 Optocoupler rating
A general-purpose optocoupler can be used but an optocoupler with the following characteristics is
recommended.
•100% < CTR < 300%
•Single channel type
Example:
TLP781-1-GR rank or TLP785-1-GR rank by Toshiba
Pay attention to safety standards such as UL and VDE.
The reliability and characteristics of these optocouplers are not guaranteed by Fuji Electric.
4-10
3.2.2 Input current limiting resistance
The current limiting resistor for the primary side of optocoupler is built in the X-IPMs.
The resistance is RALM=1.3kΩ. When the optocoupler is directly connected to VCC=15V, IF flows about
10mA. Therefore, external current limiting resistors are unnecessary.
If a large current Iout > 10mA is required for the optocoupler output side, it is necessary to increase the
optocoupler’s CTR value in order to supply the required current.
3.2.3 Wiring between optocoupler and IPM
Note that a high dv/dtwill be applied to the optocoupler for alarm signal output and temperature
warning output, please take the same precautions as in section 3.1.3.
4. Connector
For the connector’s electrode surface material (plating, etc.), select the same material as the IPM
control terminal plating material.
Connectors that conform to the shape of control terminals of X-IPM are commercially available.
For P630: MA49-19S-2.54DSA and MA49-19S-2.54DSA (01) by Hirose Electric
For P631: MDF7-25S-2.54DSA by Hirose Electric
Furthermore, please contact the connector manufacturer for the details of reliability and use of these
connectors.
Please note that the reliability and the characteristics of these connectors are not guaranteed by Fuji
Electric.