UCC28064A: Min and max switching frequency

Elisha Tarroza71

Part Number: UCC28064A

Hello and good day.

Is it possible to request for expected the minimum and maximum switching frequency of UCC28064A? The datasheet doesn't seem to have specs.

We've found 45kHz in the design requirements as the minimum. But, if I'm not mistaken, this is a user-defined value. May we please request for the expected minimum and maximum limits?

Thank you.

Regards,
Elisha

over 3 years ago

0 Hong Huang over 3 years ago

TI__Mastermind 47325 points

You may look at page 16 of the datasheet to find maximum frequency setup.

0 Elisha Tarroza71 over 3 years ago in reply to Hong Huang

TI__Expert 3700 points

Thank you, may I ask about the minimum achievable switching frequency as well?

0 Hong Huang over 3 years ago in reply to Elisha Tarroza71

TI__Mastermind 47325 points

Min fsw is based on maximum MOSFET on time. You can refer the datasheet page 8 for these specs and figure out which one is for your design. The converter is in transition mode so you will be able to get min fsw from the IC specs and your converter design results.

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UCC28064A: Min and max switching frequency