pm75cs1d120 Mitsumi Electronics, Corp., pm75cs1d120 Datasheet - Page 34

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

11-8. Interface of control side of IPM
isolated power supply and a low level on/off control signal. A fault output is provided for monitoring the operation of
the module internal protection circuits.
(1) Circuit and circuit constant of the IPM interface circuit
(2) IPM Internal circuit diagram and interface circuit
(3) IPM Control terminals
IPM (Intelligent Power Modules) is easy to operate. The integrated drive and protection circuits require only an
When IPM (IGBT) is turn-off , the output impedance of the opto-coupler becomes high. Total impedance of the
keep the power devices off when it is held high. Typically the input pin of the IPM is pulled high with a resistor
connected to the positive side of the control power supply. An ON signal is then generated by pulling the control
input low.
and so on. However, if the pull-up resistor is set too small, it will affect the lifetime of the opto-coupler, please
confirm the characteristics with lifetime and so on in the opto-coupler manufacturer.
circuit which connect the interface circuit is equal to a resistance of about 20K .
The inside of the control input terminal is connected to the comparator and is with high impedance.
The parts of connecting IPM and controller (CPU) are required to use following parts.
Example of constant value of the IPM interface circuit
The IGBT power switches in the IPM are controlled by a low level input signal. The active low control input will
The recommended value of the pull-up resistor is 20 k
• Input terminal
• Fo terminal
• Control power supply
Symbol
Rin
PC
C1
Cp
Pull-up resistor
Smoothing capacitor
Bypass condenser
Opto-coupler
15V Control
power spply
Name
High speed
opto-coupler
(1) High speed opto-coupler, (2) Pull-up resistor
(3) Condenser (Ceramic condenser for the ripple removal
(4) Low(high) speed opto-coupler
(5) The mutually insulated stabilized power source of +15 V
10u
C1
Recommend Value
High CMR, CTR
< 0.1 ~ 1uF
(The negative power as it uses in IGBT-MOD is unnecessary.)
< 10uF
and electrolytic condenser for the power stabilization)
20k
34
Cp
0.1u~1uF
but it can be smaller for the noise countermeasure
All input terminal (include Br)
It is necessary that the charge and
discharge electric current and the
dv/dt electric current to IPM(IGBT
gate) can be sufficiently absorbed.
ex.) TLP-559(IGM), PS9613 etc
Vcc
Vcin
100pF
GND
Fo
1.5k
IPM
Note
Using IPM
Sep. 2008