UCC27211 connection from HB to HB

K.Hamamoto

Other Parts Discussed in Thread: UCC27211

We are going to use UCC27211 for H bridge application.

Is the following configuration possible? (Is the connection which is connected between two HB pin possible? *: Red line)

(conditions : The left side is kept HB=ON and LO=OFF. The right side is switching at 200kHz.)

Regards,

Koji Hamamoto

over 9 years ago

0 Britt Brooks - Online Design Tools over 9 years ago

TI__Mastermind 41310 points

Hamamoto-san,

Your post has been moved to the AC/DC and Isolated forum.

0 Ritesh Oza over 9 years ago in reply to Britt Brooks - Online Design Tools

TI__Intellectual 1880 points

Dear Hamamoto-san,

This not a very common application.
Would it be possible for you to share more details, such as more complete schematic, current direction, voltage values, and timing diagram?
For how long left side HO stays ON?
Do left side LO becomes ON at the start-up to charge the left side bootstrap capacitor?
What is the value of R and L in above circuit? What is the value of bootstrap capacitor.
What is minimum and maximum duty cycle (for both left and right side)?

Regards,
Ritesh

0 K.Hamamoto over 9 years ago in reply to Ritesh Oza

Guru 12155 points

Hi Ritesh-san

Thank you for your reply.

Could you give me your e-mail address?

I would like to talk by e-mail. Because the some information is confidential for our customer.

Regards,

Koji Hamamoto

0 Ritesh Oza over 9 years ago in reply to K.Hamamoto

TI__Intellectual 1880 points

It is

r-oza@ti.com

Power management

Power management forum

UCC27211 connection from HB to HB