Hello @xuesong3
Thank you for posting your question in Infineon community.
(1) Our control board doesn't have extra I2C interface. Can this chip work without I2C bus? I noticed that these configurable parameters have default values, is it possible to just use it as a normal gate driver chip and skip the configuration process?
Ans: Kindly use below mentioned device for you application. It wont have I2C configuration, it is is having analog configuration.
https://www.infineon.com/dgdl/Infineon-1ED34x1Mx12M-DataSheet-v01_10-EN.pdf?fileId=5546d46274cf54d50...
(2) After power loss of input side and output side（i.e., power off the whole circuit）, will these configured parameters kept in the chip when I power it again? My idea is to configure parameters with another controller, and I assume these parameters can be kept in this gate driver chip forever.
Yes it will be used same values before power shutdown（i.e., power off the whole circuit） if you did not configure any parameters after the power supply was given.
you can use X3-Analog driver instead of X3-Digital driver it will fit for your application
Please let me know if you need any help
Thank you
Guru
