DRV425EVM: DRV425's Fluxgate Core material

Dear Sir,

I am graduate Student and I use DRV425EVM on my application.

In this time, I use ANSYS Maxwell and make simulation.

I searched about DRV's Core Information this forum and I found one.

https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/548043/questions-about-tipd205-ti-design-applying-drv425?tisearch=e2e-sitesearch&keymatch=DRV425%252520principle#

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1. DRV425 Fluxgate.
 a) I have a chance to see the principle of Fluxgatre, before.
   It was configured with Excitation, Sensing, Compensation coils & 2 magnetic core
   (Non-Inveting, Inverting).
   I wonder DRV425 is integrated the Exciation portion inside the ic?

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So, Make for simulation, I have to know about the core's structure and material.

If TI may open the information,

I want know these information.

Best Regards.

TH, Ro