UCC28070A: Regarding improvement in operation at light load

Masazumi Ishii

Genius 3945 points

Part Number: UCC28070A
Other Parts Discussed in Thread: UCC28070,

Hello.

I have a question about UCC28070.

For the contents, please see the attached document.

Thank you.

UCC28070A-1.pdf

over 6 years ago

0 John Griffin1 over 6 years ago

TI__Mastermind 34465 points

Hello Masazumi Ishii,
This question has been answered in a few previous postings.
These are two examples:
e2e.ti.com/.../712898
e2e.ti.com/.../694638

The idea behind the ramp is an attempt to add more offset at longer pwm times. In practice this is not needed and a small DC offset is all that is required.

Regards
John

Power management

Power management forum

UCC28070A: Regarding improvement in operation at light load