TPS65994 dilema

[nickstyle]

Hi, is the TPS65994 AC the same as TPS65994 AD
I replaced 2 on a Asus motherboar and is not working, i get 5V instead of 19 <The original TPS was AC and i replaced them with AD.

[sam_sam_sam]

Here is the reason that you might not be able to find the AC version of this ic chip and this iIs from TI website

The TPS65994AC was never a full production device and is not available for customers. Our first fully released production version is TPS65994AD. Other than that, TPS65994AD is the next iteration after the AC version, and thus carries some fixes and improvements. The TPS65994AD is released on ti.com, we recommend using that device for dual port TBT4 PD controller applications.

I hope this helps you understand why this might not be able to be repaired

[nickstyle]

Thank you,i bought AC version but still not working. I`m not sure if these chienesse chios are good,i bought many chips from China but `m not sure about thrse,why they don`t work

[stj]

check the datasheet,
they may be programmable