您好
TI有过答复: The ED marking is on the backside of the chip. You'll need to look at the backside under a microscope and you will be able to see it.
见下方链接
OPT3001: Photo to show the location of OPT3001 IC marking - Sensors forum - Sensors - TI E2E support…
Hello, as to the schematic, you could refer to the EVM user's guide Page14.
The layout is also included the user's guide with pdf file, please refer to Page15~17:
https://www.ti.com.cn/cn/lit/ug/sbou134a/sbou134a.pdf