TPS281C100: any recommendation to replace HF81, a x capacitor bleeder

Ken Zhang

Part Number: TPS281C100
Other Parts Discussed in Thread: UCC256301

Tool/software:

Hi,

Is there any solution to replace "X capacitor bleeder" of HF81?

0 Patrick Shalton 1 month ago

Hi Ken,

This device looks to need a high operating voltage, whereas TI high side switches can only support up to 60V and do not support AC operation.

Please see the following document for devices that have integrated X capacitor discharge functions: https://www.ti.com/lit/sg/slyt728/slyt728.pdf

Thanks,

Patrick

0 Ken Zhang 1 month ago in reply to Patrick Shalton

Patrick

I understand that TI has no this type of device, is it right?

+1 Patrick Shalton 1 month ago in reply to Ken Zhang

Hi Ken,

From the above app note, it looks like UCC256301/4 has this function, but please check with the relevant team that supports these devices.

Thanks,

Patrick

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