What does Pmax of FWD mean?

The Safe Operation Area (SOA) of a diode indicates the area where the maximum power determined by a product of the current and voltage applied during reverse recovery can be allowed. This maximum power is called as Pmax.

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.

Does the value of gate charge QG depends on power supply voltage, current and temperature?

The value of QG does only slightly depend on power supply voltage, current and temperature, hence it is not necessary to consider this dependency in real application.

VCEsat and VF are given for terminal and chip. How can we use them properly? (What is the meaning?)

“VCEsat and VF of the terminal are ON voltages measured on the main terminals and include voltages induced on the internal wiring of the module. Use them as a reference when On voltage is measured on the terminal. On the other hand, VCEsat and VF characteristics of the chip indicate IN voltage closest to the […]

IC, IC, pulse are included in the absolute maximum ratings. What do they mean?

“Including the V Series, –IC represents the maximum DC forward current which is allowed for the built-in diode, and –Ic, pulse represents the maximum pulse forward current which is allowed for the built-in diode. From X Series on, to be easily recognized as compliant to IEC standards and as diode elements, they have been changed […]

The recommended dead time for V-Series IPM is minmum 1μs. Does it indicate the input side (primary side) of a opto-coupler?

No. The dead time indicates the dead time on IPM input terminal Vin.

Do Cies and Cres show frequency dependence?

They have almost no frequency dependence in the range of f=1k – 1MHz.

Where can we obtain the latest version of data sheets?

The data sheets can be downloaded from Fuji Electric web site. The use of parametric search is recommended. Please contact Fuji Electric Corp. of America or your local sales representative or distributor to answer your question.

Can I get dimensions which are not described in the outline drawing included in the data sheet?

For dimensions which are not described in the outline drawing, please contact Fuji Electric Corp. of America or your local sales representative or distributor.

How do I use the equation and table that are attached to the transient thermal resistance curve in the data sheet?

The junction temperature Tvj doesn’t increase immediately when power losses are generated on a semiconductor chip. There is a time delay due to thermal capacity of materials composing the IGBT module. The equation in the data sheet shows the relationship of the transient thermal resistance to the pulse width tw when a single square wave […]