UCC28782: Compare with LLC

Jamie Tseng

Part Number: UCC28782
Other Parts Discussed in Thread: UCC256402

Hi Team,

If the customer have a 150W project with a density requirement of 1.2W/cc, will you suggest use the ACF UCC28782 or with the LLC?

Which has an advantage in energy efficiency?

Thanks and best regards,

Jamie

0 Yunsheng Qu over 4 years ago

Hi, Jamie

Could you let me know the AC input voltage range and output voltage range?

Is PFC needed in this design?

Yunsheng

0 Jamie Tseng over 4 years ago in reply to Yunsheng Qu

Hi Yunsheng,

Yes, PFC is needed.

AC Input is full range 100~240Vac; DC Output is 50V/3A.

Which solution is better?

Thanks and best regards,

Jamie

0 Yunsheng Qu over 4 years ago in reply to Jamie Tseng

Hi, Jamie

At 150W power level, I recommended LLC solution with UCC256402. The peak efficiency of LLC can achieve 97% which is higher than ACF.

Yunsheng

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