UCC256403: Is it possible to use VCC for boot strap instead of RVCC?

Shinichi Inoue

Guru 21341 points

Part Number: UCC256403

Dear Specialists,

My customer is designing UCC256403 circuit and has a question.

I would be grateful if you could advise.

---

According to the datasheet, RVCC is used for bootstrap power supply.
Is it possible to use VCC instead of RVCC?

---

I appreciate your great help in advance.

Best regards,

Shinichi

+1 JCHK over 1 year ago

Hi Inoue-san,

It is possible. This is how it is done with our new UCC25660.

I hope this answers your question.

0 Shinichi Inoue over 1 year ago in reply to JCHK

Guru 21341 points

Hi JCHK,

Thank you for your reply.

The bootstrap of UCC256403 could use VCC instead of RVCC.

In case of UCC25660x, the bootstrap uses VCC.

I'll share these information with the customer.

I appreciate your great help and cooperation.

Best regards,

Shinichi

+1 JCHK over 1 year ago in reply to Shinichi Inoue

HI Inoue-san,

You are most welcome.

Power management forum