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Original question:

Power Muxing for primary battery and USB-Power with deep discharge protection

TPD3S014: usb2 connection for 5V and data -> EMI components needed

Ed Walker
Prodigy 5 points
Part Number: TPD3S014
Other Parts Discussed in Thread: TPS25840-Q1, TPS254900-Q1

Hello USB interface.
Split from original thread: https://e2e.ti.com/support/power-management/f/196/t/883196

Please provide some suggestions USB2.0 protection and EMI.

At the moment I develop a new product and need some help with the power components to find the best solution. 

- usb2 connection for 5V and data -> EMI components needed

  • 0
    TI__Expert 8420 points

    Hi ,

    Could you consider the TPS25840-Q1 which including the DCDC 5V output and  data communication function ?

  • 0 in reply to Michael Tan
    Prodigy 100 points

    Hi,

    honestly I haven't thought about using BC1.2 yet. But I see that this is the wrong type of controller. I need the EMI-protection for an usb-device. The chip you have suggested is for an usb charging port, isn't it?

    At the moment I think of surge, burst and perhaps short circuit or over voltage protection. I know how to build it with discreet parts, but perhaps there is an option for an integrated module and this would be the better way.

    Best regards, Jens Herrgesell

  • 0 in reply to Jens Herrgesell
    TI__Expert 8420 points

    Hi,

    Yes, the TPS25840-Q1 is for USB charging port .

    So the TPD3S014 can meet your requirement or not ? The TPD device can do the ESD protection in dataline (DP/M) but it don't have the EMI function.

    You mention should have the surge, burst and OVP. You can refer to TPD3S716 for study.

    We have any other part TPS254900-Q1 which for the BC1.2 type A port solution, also have the OVP and ESD function in the dataline.

  • 0 in reply to Michael Tan
    Prodigy 100 points

    Hi,

    I think the TPD3S716 fits perfectly.

    Thanks a lot for you help.

    Best regards,

    Jens Herrgesell