What kind of load share IC support 54 Vout for POE application?

HAN LEE

Expert 1515 points

Other Parts Discussed in Thread: UCC39002, UCC29002, TPS2412

Hi TI experts,

As title ,may I know what kind of load share IC support 54 Vout?

Currently, TPS2412 , UCC29002 or UCC39002 only work at 12Vout , thanks.

over 5 years ago

0 Teng Feng over 5 years ago

TI__Genius 13660 points

Hi HAN LEE,
Load-Share Controller UCC2900x, UCC39002 support 54V output power module.
So did you get this question?
Regards,
Teng

0 HAN LEE over 5 years ago in reply to Teng Feng

Expert 1515 points

Hi experts,

Thanks, understand.

0 HAN LEE over 5 years ago in reply to Teng Feng

Expert 1515 points

Hi Experts,

Is there any reference schematic that can share with us?

CS+ & CS- connect to High side, and ADJ pin also connect to 54Vo

Question : How to connect them ( CS+ , CS- and ADJ that PIN max voltage is only 15V) ?

Note: SMPS that Vo is 54V

Thanks.

0 Teng Feng over 5 years ago in reply to HAN LEE

TI__Genius 13660 points

Hi HAN LEE,

CS+ & CS- voltage range is the input common mode range includes ground and the positive supply VDD, and there is a resister voltage divider for CS+ & CS- Pin.
VOUT doesn't connect to ADJ directly.The voltage at ADJ pin is VADJ = VOUT - RADJ * IADJ.
I have attached an user's guide of UCC39002, which introduces the component selection and design for the modules to be current shared. I think it can help you much on its use.sluu166a.pdf

Regards,
Teng

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What kind of load share IC support 54 Vout for POE application?