TPD4E004: Samples Availability

Hi Josh,

I placed an order for some EVMs which included this part, unless you have a drop-in replacement for this device can I get at least 85 TPD4E004 units for my build?

Are there pin-to-pin solutions which I could take a look at for future EVM builds? If not, could you link a package variant which is most similar?

Regards,

Joshua

Hi Joshua,

I have 3 things to note here:

• I am reaching out to our PM team to understand who determines sample availability, as when I double checked, some other devices featured in Redbull 1.0 had samples available... It might take me some time to nail down why samples aren't available so please give me some time on this.
• P2P options:
  • TPD4S012 - Same package, 4 channel different pin layout. Superior specs
  • TPD4S009 - Same package, 4 channel different pin layout. Worse clamping voltage, better cap
  • TPD2E001 - Same package, 2 channel different pin layout
  • TPD3E001 - Same package, 3 channel different pin layout
  • So it really seems like this device is truly single sourced (among TI alternates). Is there a specific reason this device was chosen in the first place? You mentioned you placed an order for an EVM using this device, which EVM was that?
• Non p2p similar solutions:
  • TPD4S012 has 3 IO pins and one VCC pin (one less IO pin than TPD4E004), but has superior specs and is the same size package (1.45mm x 1.00mm). Seems like maybe a decent future option if this package size is fixed, but the pin layout can change
  • TPD4E110 has 4 IO pins and no VCC pin, has similar specifications to TPD4E004 but is in a smaller package (0.8mm x 0.8mm). If there is a need for the 4 IO pins, but the VCC pin is not needed, this would be the best option.
  • Outside of these devices, there doesn't really seems to be a great comparison without increasing package size. 

If you have any information on the requirements for your system (ie, is <=1.6pF cap needed? Are 5 total channels needed?), this would be helpful for me to understand to list all available options.

Best Regards,

Josh Prushing

Hi Josh,

Josh Prushing said:

It might take me some time to nail down why samples aren't available so please give me some time on this.

Sure, no problem.

Josh Prushing said:

P2P options:

I will keep these selections in mind, based on the section you provided it seems we will have to re-work the boards in the future. 

Josh Prushing said:

You mentioned you placed an order for an EVM using this device, which EVM was that?

The order was for the MCF8329RRYEVM which is very similar to the released MCF8329EVM.

As to why the device was chosen over other similar solutions, I am not too sure, we have been re-using the same USB communication section for our EVMs for a couple of years now.

Josh Prushing said:

If you have any information on the requirements for your system (ie, is <=1.6pF cap needed? Are 5 total channels needed?), this would be helpful for me to understand to list all available options.

We are using this part in-between a USB-C mini connector and a FT232RNL. we only use 3 of the IO pins:

Regards,

Joshua

Hi Joshua,

I am still waiting on feedback on sample availability.

For future revisions, I recommend checking our USB Protection App Note for up-to-date options for USB-C protection.

Best Regards,

Josh Prushing