UCC3800 soft-start and leading edge blanking

Sydney Lofton

Prodigy 40 points

Is there an interaction between the soft-start and the LEB circuit? Do these features change with high temperature?

over 13 years ago

0 John Bottrill over 13 years ago

TI__Mastermind 25130 points

Sidney,

Is there an interaction between the soft-start and the LEB circuit? NO

Do these features change with high temperature? Not within the operation limits as per the data sheet.

Regards,

John

0 Sydney Lofton over 13 years ago in reply to John Bottrill

Prodigy 40 points

John, Thank you for your response. A follow up question: if I add a small filter to the current sense signal, does the LEB circuit discharge the cap? Or does it just disconnect the signal from the PWM? Thank you in advance for your time. Sydney

0 John Bottrill over 13 years ago in reply to Sydney Lofton

TI__Mastermind 25130 points

Sydney,

It does not discharge the capacitor.

John

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UCC3800 soft-start and leading edge blanking