We like to configure a bootstrap circuit for the upper arm control power supply of a small IPM outside the module as well. Is there any problem?

This is not problematic. Small IPM modules already contain bootstrap diodes and a limiting resistor inside.

Why does Fuji limit the case temperature Topr during operation to -20 — 110oC for V Series IPM?

IPM contains electronic parts such as PCBs, ICs and capacitors. Therefore, it has a narrower temperature range compared to regular IGBT modules.

Where can I find the description of FBSOA in the IGBT Modules Specifications?

IGBT module do not have a specification of the FBSOA. For IGBT modules the SOA of the FWD is given in the datasheets.

How can we estimate the IGBT junction temperature from the NTC thermistor built in an IGBT module? What is the heat resistance between the junction temperature and NTC thermistor?

It varies depending on conditions such as internal structure of the module, thermal grease and cooling fins. Please contact Fuji Electric Corp. of America or your local sales representative or distributor to answer your question.

Do current IGBT modules still cause a latch-up?

IGBTs developed in recent years are designed to not cause latch-up within a range of normal usage.

What is the difference between DC short circuit (arm short circuit) and load short circuit?

Short circuit withstand capability in the datasheets for our modules are defined in DC short circuit condition (arm short circuit). In the case of load short circuit, the short circuit occurs during conducting mode of the IGBT, and the larger current than the saturation current may flow into the device.

Why does the maximum voltage in the RBSOA (non-repetitive) graph drop when the current is increased?

If the turn-off breaking current increases, di/dt increases as well and is causing an induced electromotive force L·di/dt due to the internal inductance in the module L. Hence, high voltage will be applied to the IGBT chip and might cause some avalanche breakdown. Therefore maximum voltage needs to be reduced when the current increases.

“What is the difference between E-type and P-type of PrimePACKTM?
Example) 2MBI1400VXB-120E-50, 2MBI1400VXB-120P-50″

“In these two different module types different chips are used. E-type: Standard type P-type: Soft switching type suppressing turn-off surge voltage”

Is the signal of the temperature output terminal TEMP of small IPM analog or digital?

It is an anolog signal.

Is it possible to directly connect the output of the temperature output terminal TEMP of small IPM to the micro processing unit MPU?

The TEMP terminal can directly be connected to the MPU.