Frequent Questions

  • [FAQ] TPS23751: Can APD pin left floating on my PoE PD controller?

    Part Number: TPS23751 Hi Darwin, For all of TI's PoE PDs, even if there is an internal pull down on APD, it is recommended and good practice to terminate this pin to RTN or ARTN if APD is not used. This is also described in the PoE PD's datasheet.

  • [FAQ] TPS2372: What kind of MPS (maintain power signature) feature does my PoE PD application need?

    Part Number: TPS2372 Other Parts Discussed in Thread: TPS2373 , , TPS23752 Hi Darwin, In general, a PD can meet MPS by supplying at least 0.5W to the PSE (usually meets the MPS spec by the load going into normal operation). We have one family of…

  • [FAQ] AWR1642: Implementing people count on AWR1642BOOST-ODS

    Part Number: AWR1642 Other Parts Discussed in Thread: IWR6843 , IWR1642BOOST Hi I'm trying to implement people count demo on AWR1642BOOST-ODS. I made following modification on chirp config : "channelCfg 3 3 0" to activate RX1, RX2, TX1 and TX2…

  • [FAQ] TPS2372: What is the TPH, TPL, BT code when connected to an AT PSE, AF PSE or BT PSE, or a POE++ PSE, or an Adapter?

    Part Number: TPS2372 The table below shows the TPH-TPL-BT state when connected to an AT PSE (Type 1 or Type 2) or AF PSE (Type 1) , BT PSE (Type 3 or 4), non-standard POE++ PSE, or adapter (when APD goes high). PSE Type Power Sourced from…

  • [FAQ] What does 'partial power down' or 'Ioff' mean in the datasheet?

    FAQ: Logic and Voltage Translation > Logic Technology >> Current FAQ The " Ioff " specification in the electrical characteristics table is only in the datasheet of devices that have the special feature of " partial power down " - also known as " back…

  • [FAQ] Common TM4C Solved Issues and General Information

    Other Parts Discussed in Thread: EK-TM4C123GXL , EK-TM4C1294XL , UNIFLASH Hello TI E2E Community, We have updated our prior post of "Diagnosing Common Development Problems and Tips & Info for TM4C Devices" with some new information and improved formatting…

  • [FAQ] How do you generate isolated power for a digital isolator?

    How do you generate isolated power for a digital isolator?

  • [FAQ] PCB Layout Guidelines and Grounding Recommendations for High-Resolution ADCs

    Other Parts Discussed in Thread: LM27762 I am laying out a PCB that uses a precision 24-bit ADC. What are TI's recommendations for PCB layout? Also, should I split the ground plane between analog and digital circuits?

  • [FAQ] TINA/Spice: ISO7637 profile

    Other Parts Discussed in Thread: TINA-TI Tool/software: TINA-TI or Spice Models Simulating the ISO 7637-2 early in the design phase of an automotive product can pinpoint issues that would otherwise come to light during electromagnetic compatibility…

  • [FAQ] TPS23861: Reset rise/fall timing spec. of reset pin (PoE PSE Startup Guidelines)

    Part Number: TPS23861 Hello Does TPS28861 have any rise/fall timing specification of reset pin? Thank you. BR Patrick

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