two questions using L6599

[Jyu.6]

hi, I'm developing 48v 1kw.

Is it possible to set the rising time within 50 ms using l6599ad?

The datasheet uses Rss and RFmin to control the initial soft start, but it does not decrease to 400 to 500 ms at all. If you need a circuit diagram, I'll send you a mail.

Thank you.​

[yugal_2311]

Pls send the schematic to [e-mail]