UCC28070: About GDA and GDBpin(Additional question)

Masazumi Ishii

Genius 3945 points

Part Number: UCC28070

Hello.

Bliss-san

I sent it by email,

I have additional questions.

Please look at the attached document.

Thank you.

0 John Griffin1 over 6 years ago

I can provide some help with this issue.

At startup there is a short pulse for either GDA or GDB and this is followed by a longer off time before normal startup is resumed.

This is a normal occurrence for the UCC28070 and will not cause any systems performance issues because the gate drive signal is so short.

The attached document describes in detail why this occurs.

Regards

John

0 Masazumi Ishii over 6 years ago in reply to John Griffin1

Genius 3945 points

Hello

thank you for your answer.

I have additional questions.

Q1
Answer: 1 pulse output is not a problem because the pulse width is narrow.

What is the maximum pulse width that does not matter? (How long does the short pulse width extend?)

Q2
Inquired on March 28th,
e2e.ti.com/.../2914995

we made an inquiry regarding Q3 of the attached document.
I have not received an answer.

Thank you.

0 Bliss Zhou over 6 years ago in reply to Masazumi Ishii

Hi Masazumi,

This thread question is same with Thread ID: 806414. we can discuss your question in Thread ID: 806414. so, I just close this E2E.

Thanks

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