UCC28880 Reference Accuracy?

Allen Wachter

Expert 6730 points

Other Parts Discussed in Thread: UCC28880, UCC25600

Looking over the UCC28880 datasheet it appears the accuracy of the internal reference is +/-7%. Is this correct?

If so, is there anyway to tighten this up? Or any roadmap devices with improved accuracy?

Thanks!

over 9 years ago

0 Billy Long over 9 years ago

TI__Expert 4015 points

Not at the moment Allen.
These non-isolated bucks normally feed low voltage DC/DC converters of LDOs where regulation accuracy is required.
Hope this helps.
Thanks
Billy

0 Allen Wachter over 9 years ago in reply to Billy Long

TI__Expert 6730 points

Hi Billy,

Unfortunately the customer is going to go with the Viper0P because it has a +/-2% reference. He wants a tight voltage because he is using it for a bias supply for an UCC25600 and wants to keep the gate voltage down. Do we have any competitive info on the Viper0P you can send me?

Thanks,
Allen

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UCC28880 Reference Accuracy?