TCAN2451-Q1: I would like to get the suggestions from TI about power supply of TCAN2451-Q1

Shiyu,

Thanks for reaching out! These values should be provided in Table 9-1 of the full data sheet, which I believe you have. If not, please request it on the ti.com product folder for TCAN2451-Q1, which you can find here: https://www.ti.com/product/TCAN2451-Q1

The table will give you these recommended values along with all other recommended values for the resistors, capacitors, and inductors around the SBC.

Best,

Danny

Shiyu,

The screenshots you're sharing are not from the released version of the data sheet. You can tell because there is a watermark on your document which says "NDA Restrictions" which is not present on the released version of the document. Please go to the ti.com product folder for TCAN2451-Q1 to get the data sheet in your secure resources tool. This will allow you to find the released version of the document with the latest information for your device.

Best,

Danny

Shiyu,

Have you already clicked the "Request Now" button, per below?

If you have done so, the documentation will appear in your MySecure folder here: https://www.ti.com/securesoftware/docs/securesoftware

(If not, you can check https://www.ti.com/secureresources/)

Also, it is possible that the older document you're using has this table marked as Table 10-1, though I cannot be certain because your screenshots are from an unreleased version. It might be titled "Recommended External Component Values." If you cannot locate this table in your version, you will need to access the released data sheet from the link shown above.

That being said, common values for a pi-filter include ~1.5µH for the inductor and ~2.2µF for the filter capacitor C_F. The larger capacitor depends on the size of C_IN in your schematic, which is shown as C5 in the released data sheet.

Best,

Danny