TI E2E Community
TPD2E009DRT Versus TPD2EUSB30DRT
In a current USB3 Superspeed design the TPD2EUSB30ADRT was designed in, but appears to be completely unavailable currently.As a possible temporary work-around alternative (although somewhat less desirable for USB3 Superspeed applications), the TPD2EUSB30DRT has been considered, but is also unavailable, at least in the 300-quantity range needed for the current initial build about to happen shortly.A yet further alternative which actually is available is the TPD2E009DRT, which appears to have electrical characteristics similar to those of the TPD2EUSB30DRT.
Per the website information posted however (under Interface; ESD/EMI Protection; browsing for parts in the 3SOT package), while the TPD2EUSB30DRT (and TPD2EUSB30ADRT) appear to be recommended for use in a number of highspeed serial applications including HDMI, PCIE, SATA/eSATA, and full, high and superspeed USB, the TPD2E009DRT is shown as recommended only for SATA/eSATA.What is the reasoning for such a disparate set of recommended applications for what appears to be two virtually-dentical parts?
Is there any obvious (or nonobvious) reason why the TPD2E009DRT could or should not be used in place of the TPD2EUSB30DRT?
TPD2EUSB30DRTR & TPD2E009DRTR are identical parts. Same silicon, same package. We created different marketing part# to address USB3.0 interface. this is why you see different application info at different data sheets.
TPD2EUSB30ADRTR is a lower VBR version of the TPD2EUSB30DRTR. Everything else is identical. We had one particular customer wanted lower VBR to pass a surge test.
TPD2EUSB30ADRTR 7V (min) VBR
TPD2EUSB30ADRTR 4.5V (min) VBR
Thank you for your prompt and clear explanation.
If you don't mind the suggestion, why not indicate, either on the TI website, or on the products' datasheets, or both, that the two parts are in fact interchangeable, i.e. identical? Doing such would have saved me at least some time and effort, and no doubt others as well.
Do there happen to be any other parts available, identical (or almost so) to the TPD2EUSB30ADRT?
Daniel, We have TPD2E009DRTR units available right now. This can be a choice if customer don't mind the VBR change. If this is an option, please send an email to Janna Harris (and copy me) if you like to have some units.
I will look into the suggestion and see how we can implement. There are some marketing consederation against doing that.
Thanks for the offer for providing units, but an order has already been placed with Digikey for a quantity of the parts.
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