SKYPER42R Datasheet, PDF (7/18 Pages) Semikron International – IGBT Driver Core

SKYPER^® 42 R
3.2. Controller Interface – Primary Side Connection
Application example
Pins X10:01-02 and X11:01-02; X11:05-08 are reserved. Do not connect. Non binding recommendation for: RERROR=4,75kΩ; CFILTER=1nF.
A capacitor is connected to the input of the gate driver to obtain high noise immunity. With current limited line
drivers, this capacitor can cause a small delay of a few ns. The capacitors have to be placed as close to the
gate driver interface as possible.
Signal cable should be placed as far away as possible from power terminals, power cables, ground cables,
DC-link capacitors and all other noise sources.
Control signal cable should not run parallel to power cable. The minimum distance between control signal
cable and power cable should be 30cm and the cables should cross vertically only.
It is recommended that all cables be kept close to ground (e.g. heat sink or the likes).
In noise intensive applications, it is recommended that shielded cables or fibre optic interfaces be used to
improve noise immunity.
Use a low value capacitor (1nF) between signal and power supply ground of the gate driver for differential-
mode noise suppression.
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2011-04-04 – Rev05
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