Questions on Vgs(M)_External vs Vgs(die)_Internal

MinC

Hi Wolfspeed Expert

As Wolfspeed claimed the max rating of Vgs is -8V/+19V in the datasheet of CAB530M12BM3, would you kinldy review below questions and address the concern, thanks.

1. is there any reliability concern if customer guarantee the Vgs overvoltage within the -8V/+19V at the Vgs(M) testing point? Do we have any data
2. Is the Vgs postive/negative overvoltage measured at the Vgs(die) worse than at the Vgs(M)? is there simulation data or measurement data can be proved this assumpation?
3. How to design/select a right Rg(int) from Vgs overvoltage and oscillation point of view for module desgin ? Does it need to de-cap module and do the Vgs measruemnt at the Vgs(die)?

Thanks

Mason