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How much is the maximum voltage on POC application of DS90UB913A?

Hugo Liu
Genius 5095 points
Other Parts Discussed in Thread: DS90UB913A-CXEVM

Hi Sir,

Our Customer look for DS90UB913A for Reverse image application,
The TI's document DS90UB913A-CXEVM is show the 5V on POC application.
But the car power system is DC12V,
How much is the maximum voltage on POC application of DS90UB913A/914A?
if DS90UB913A can be use 12V for POC, What do we need to modify it on schematic?

  • 0 in reply to Elias Villegas M.
    Genius 5095 points

    Hi Sir,

     

    Excuse me, Do you have any update for maximum voltage on POC?

  • 0 in reply to Hugo Liu
    TI__Expert 5210 points

    Hello Hugo,

    Our typical application is for 5V over Power over coax, however the customer's application of 12V will work just fine without making any changes to the EVM schematic. Higher PoC voltage typically means lower current going through the inductors and ferrites located on the PoC network as seen on our EVM - lower current is just fine here for the application.

    In regards to a maximum/minimum PoC voltages that can be applied, this will depend on what the maximum power (i,e. current and voltage) ratings are for the components in the PoC network, most notably the inductors (100uH and 4.7uH) and the ferrite beads. Granted, before you reach the maximum threshold ratings here for the components, you are liable to see data signal errors first in the application if operating close to the maximum thresholds. Typically, we recommend a PoC voltage that is between 5V and 12V for a customer's application.

    -Sean

  • 0 in reply to Sean Thornton1
    Genius 5095 points

    Hi Sean,

    Thanks for your great support.

     

    Hugo