TPS7H6005-SEP: TPS7H6005-SEP:

Hey Sikandar,

We don't have a reference design on how you would implement what you are asking for.

The way I know how to implement power to the high side switch without a charge pump is with some sort of isolated supply with the output grounded to the bottom of the high side FET.
This would be quite large and bulky compared to a bootstrap.

Is there a specific reason you are unable to use a bootstrap?

Thanks,
Daniel

Thanks for the reply . The reason being we want to have option to switch ON high side switch with 100% duty cycle at some instances . 

Follow up question . if I use external supply for high side , can i still use the intenal 5V LDO generated as shown in the architecture for the low side . 

ThankS

Sikandar 

Hey Sikandar,

I presume you are looking for something similar to this E2E.
My answer will be the same:
https://e2e.ti.com/support/power-management-group/power-management---internal/f/power-management---internal-forum/1470105/tps7h6005-sep-external-supply-to-drive-the-high-side-mosfet

Thanks,
Daniel

Hi Daniel ,

When i click the link i get the error Page not found

Hey Sikandar,

Its possible you have to delete your cookies:

Thanks,
Daniel

Unfortunately still i cant access it even after deleting the cookies . It would be very helpful if you could mail me the document to sikandar.khalandar@avl.com

Hey Sikandar,

Its not a document its just another E2E thread.

Please just use the answer provided for now.

Thanks,
Daniel