Frequent Questions

  • [FAQ] Why is the logic LOW level output voltage, VOL1, up to 0.8V on Side1 of the ISO1540/ISO1541 and ISO1640/ISO1641 bidirectional I2C isolators?

    Other Parts Discussed in Thread: ISO1541 , ISO1540 Why is the logic LOW level output voltage, V OL1 , up to 0.8V on Side1 of the ISO1540 and ISO1541 bidirectional I2C isolators?

  • [FAQ] What are the recommended logic HIGH and LOW input voltage levels that can be applied to the isolated I2C devices, ISO1540 and ISO1541?

    Other Parts Discussed in Thread: ISO1541 , ISO1540 What are the recommended logic HIGH and LOW input voltage levels that can be applied to the isolated I2C devices, ISO1540 and ISO1541?

  • [FAQ] What is the current consumption of the isolated I2C devices, ISO1540 and ISO1541?

    Part Number: ISO1540 Other Parts Discussed in Thread: ISO1541 , What is the current consumption of the isolated I2C devices, ISO1540 and ISO1541?

  • [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?

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