High side MOSFET driver

Hi Saqi,

Thank you for being in touch regarding your application. 
I recommend to consider ADuM4146 instead as it is rated for VIORM = 2150 V peak, which is ideal to supports your voltage and speed requirements.

Reference material can be found here:
https://www.analog.com/en/products/adum4146.html#evaluation-kit

Best regards,
Luca  

Thanks for the response, I checked the reference design file, "https://www.analog.com/media/en/technical-documentation/user-guides/eval-adum4146-ug-2034.pdf" the schematic is page 4. I have a question, DESAT pin is connected to the input HV through a diode, can you explain this diode and DESET pin? Please, explain this point and what diode should I use, as it is not mentioned in the reference design BOM. 

And part "ADUM4146A" is not available in Ltspice XVII.
I saw some other high side driver from ADI, like, LTC7060, where for high side SW pin is directly connected to the MOSFET source pin (which for me makes sense). But in  ADuM4146 I can not understand the logic. How to use it as a high side driver, we do not need any input from MOSFET source pin? 

For this part I think, I got the logic. 
The ADuM4135 is an isolated gate driver, which means it handles the gate driving through isolation rather than directly referencing the source pin of the MOSFET. This isolation is what allows it to manage high-side driving effectively without needing a direct connection to the MOSFET source pin.
Correct me if I am wrong. 
But I have a problem in simulation, check the attached file. 
The output does not goes to zero. It switches from 400V to 374V. Please, check and point out my mistake. 
Thanks

1134.MOSFET_SWITCHING.asc

GND2 should be connected to the MOSFET, it is mentioned in the datasheet. "Ground Reference for Secondary Side. Connect the GND2 pin to the source of the SiC MOSFET being driven."
I did that in my simulation but now result is strange, please check the .asc file.
3857.MOSFET_SWITCHING.asc

Hi,

ADuM4146A model is available in the latest version of LTspice including an example circuit, please update your LTSpice software to access the latest library. 

Best regards,
Luca

Thanks for the response, which Ltspice version are you using? It looks different for me, I am using Ltspice XVII.

I'm using the latest LTSpice release.
Ltspice XVII is no longer supported. I recommend to download the new improved LTspice simulator.

You can download the latest software release here:

https://www.analog.com/en/resources/design-tools-and-calculators/ltspice-simulator.html

Best regards,
Luca

The example provided in the Ltspice is for low side MOSFET driver and also there is no explanation. Please, check the .asc file which I provided. I want to use ADuM4146A as a high side MOSFET driver. What I want is, where should I connect my MOSFET source pin? 
Before going to PCB design I want to confirm the output in simulation. I upload the file from the example folder of Ltspice, can you update it for high side MOSFET driver, I tried but the result is different. 
ADuM4146A.asc

The example provided in the Ltspice is for low side MOSFET driver and also there is no explanation. Please, check the .asc file which I provided. I want to use ADuM4146A as a high side MOSFET driver. What I want is, where should I connect my MOSFET source pin? 
Before going to PCB design I want to confirm the output in simulation. I upload the file from the example folder of Ltspice, can you update it for high side MOSFET driver, I tried but the result is different. 
ADuM4146A.asc