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    Answered

  • TPS23880: Why every PSE chips share same I2C address in TPS23881EVM-083?

    Resolved
    Part Number: TPS23880 Other Parts Discussed in Thread: TPS23881EVM-083 , , TPS23881EVM-008 , TPS23882 , TPS23881 In TPS23881EVM-083 evaluation system, total 6 pieces of TPS23880, however they share same I2C address, A3~A1 pins are all tied to GND, only A4…
    • Resolved

  • RE: TPS23881: OrCAD library files

    Hi Boaz, Which EVM are you looking at, TPS23881EVM-008 or TPS23881EVM-083? Thanks and Regards, Raymond Lin
    • Answered

  • TPS23881: TPS23881EVM-083 Circuit ORCAD file

    Resolved
    Part Number: TPS23881 Can you help with the TPS23881EVM-083 Circuit ORCAD file (version16.6)?
    • Resolved
    • Answered

  • TPS23881: TPS23881EVM-083 Circuit file and PCB layout file

    Resolved
    Part Number: TPS23881 Can you help with the TPS23881EVM-083 Circuit file and PCB layout file?
    • Resolved

  • RE: TPS23881: How can set the frequency of I2C clock? Is it controlled by firmware?

    Hi Jimmy, It turns out to be a HW issue on our EVM. The pull up resistors on the I2C bus are not strong enough. After changing the pull up resistors (R11,R12,R33 and R34) on TPS23881EVM-083, the frequency is around ~400KHz. We will fix this in our next…

  • RE: TPS23881: technology discussion

    Hi Cooper, For the FW SRAM can you try instead downloading from link below? Yes you will need TI information to get access to this. Thanks! https://www.ti.com/tool/TPS23881EVM-083

  • RE: TPS23881: TPS23881

    Hi Jamie, 1. If you are looking at the TPS23881EVM-008, this pairs with the MSP5969 launchpad and the TI.com reference code on the TI.com reference page. If you're looking at the TPS23881EVM-083 or FirmPSE reference design TIDA-050026, then it pairs with…
    • Answered

  • RE: TPS23880: 8-port POE switch issue

    Resolved
    Hi AndongSun! The two TPS23880 devices will be individually addressed and managed by a host microcontroller. The device I2C addresses are set using pins A1-A4 and must be unique in a multi-device system. Section 9.2 of the TPS23880 datasheet has more…

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