
MITSUBISHI <INTELLIGENT POWER MODULES>
PM100RLA060
FLAT-BASE TYPE
INSULATED PACKAGE
May 2005
NOTES FOR STABLE AND SAFE OPERATION ;
Design the PCB pattern to minimize wiring length between opto-coupler and IPM’s input terminal, and also to minimize the
stray capacity between the input and output wirings of opto-coupler.
Connect low impedance capacitor between the Vcc and GND terminal of each fast switching opto-coupler.
Fast switching opto-couplers: tPLH, tPHL ≤ 0.8s, Use High CMR type.
Slow switching opto-coupler: CTR > 100%
Use 4 isolated control power supplies (VD). Also, care should be taken to minimize the instantaneous voltage charge of the
power supply.
Make inductance of DC bus line as small as possible, and minimize surge voltage using snubber capacitor between P and N
terminal.
Use line noise filter capacitor (ex. 4.7nF) between each input AC line and ground to reject common-mode noise from AC line
and improve noise immunity of the system.
OUT
Si
OT
GND
In
Vcc
U
V
W
B
N
P
M
IF
+
–
: Interface which is the same as the U-phase
OUT
Si
GND
In
Vcc
OUT
Si
GND
In
Vcc
OUT
Si
GND
In
Fo
Vcc
OUT
Si
GND
In
Fo
Vcc
OUT
Si
GND
In
Fo
Vcc
VWP1
WP
VWPC
UN
VN
VN1
WN
VNC
1.5k
Fo
VVP1
VP
VVPC
≥0.1
4.7k
1k
≥0.1
20k
≥10
20k
≥10
≥0.1
VFo
WFo
UFo
VUP1
UP
VUPC
Br
IF
5V
IF
OUT
Si
GND
In
Fo
Vcc
VD
Fig. 8 Application Example Circuit