pm75cs1d120 Mitsumi Electronics, Corp., pm75cs1d120 Datasheet - Page 37

• Manufacturer Part Number: pm75cs1d120
• Description: Mitsubishi Ipm L1/s1-series Application Note Igbt Modules
• Manufacturer: Mitsumi Electronics, Corp.

11-9. Other notice of using IPM
(1) The treatment of the terminal not to use
(2) The connection of the control side GND(V
(3) The circuit structure inside
(4) The parallel operation
Type CL1A,CL1B have B terminal. These terminal aren’t connected to the circuit. The pattern can be
connected with this terminal. However, pay attention to the wiring. When connecting a pattern with these
terminals, the noise might invades IPM via the terminals. Please just leave these terminals open.
The IPM is built up with IGBT chip, FWDi chip, Control IC and the other discreet parts(R, C).
Gate of IGBT chip is MOS structure. However, The gate of IGBT chip doesn’t directly connect to the control
terminal of IPM. VD, Input, Fo and GND terminal are connected to the control IC. It is possible to consider the
terminal of IPM to be a bipolar structure. The countermeasure against static electricity like conventional IC
with MOS structure is unnecessary to IPM.
The IPM is not recommended for parallel operation.
Because the balance of the switching time and the current are not identical, the IPM with larger loss might be
thermally damaged because it isn't possible to do the protection-coordination of each IPM.
If any phase of the IPM is not used, the corresponded control power supply in the circuit will not use. Please
pull-up the corresponded input terminals and make IGBT off. This is to prevent the erroneous turn on of the
circuit by noise.
Do not connect the control side GND and the output emitter GND on the printed circuit board. Otherwise It
will be easy to undergo influence by the noise. V
connecting VNC and N terminal, the current which should flow through N sometimes flows to VNC. Then,
the electric potential difference occurs between N and VNC by parasitic inductance inside and might cause
IC malfunction.
(The handling of IPM is equal to that of a bipolar IC.)
The noise which occurs with stray -current
VCC
IN
Fo
GND
VCC
IN
Fo
GND
The course
of the current
NC
/V
*PC
Driver
Driver
Control IC
Control IC
37
) and output emitter GND (N or U/V/W)
NC
and the N terminal are connected inside IPM. If
IGBT
IGBT
FWDi
FWDi
E
E
C
C
The course
of the current
Using IPM
Sep. 2008