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Frequent Questions
  • Brett Colteaux
    Brett Colteaux
    • 1 month ago
    • Power management
    • Power management forum

    [FAQ] What type of bridge do I need for my PoE PD application?

    • Answered
    What type of bridge do I need for my PoE PD application?
  • Brett Colteaux
    Brett Colteaux
    • 1 month ago
    • Power management
    • Power management forum

    [FAQ] TPS23755: What is the benefit of Primary Side Regulation (PSR)?

    • Answered
    Part Number: TPS23755 What is the benefit of Primary Side Regulation (PSR)?
  • Brett Colteaux
    Brett Colteaux
    • 1 month ago
    • Power management
    • Power management forum

    [FAQ] Why is high efficiency important in PoE applications?

    • Answered
    Why is high efficiency important in PoE applications?
  • Brett Colteaux
    Brett Colteaux
    • 1 month ago
    • Power management
    • Power management forum

    [FAQ] TPS23754: Can I use 24V PoE in my PD application?

    • Answered
    Part Number: TPS23754 Can I use 24V PoE in my PD application?
  • Darwin Fernandez
    Darwin Fernandez
    • 2 months ago
    • Power management
    • Power management forum

    [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...
  • Darwin Fernandez
    Darwin Fernandez
    • 2 months ago
    • Power management
    • Power management forum

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

    Part Number: TPS2372 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 PDs that do a feature called “automatic MPS”...
  • Darwin Fernandez
    Darwin Fernandez
    • 2 months ago
    • Power management
    • Power management forum

    [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...
  • Patrick Chen
    Patrick Chen
    • 2 months ago
    • Power management
    • Power management forum

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

    • Answered
    Part Number: TPS23861 Hello Does TPS28861 have any rise/fall timing specification of reset pin? Thank you. BR Patrick
  • David Park
    David Park
    • 2 months ago
    • Power management
    • Power management forum

    [FAQ] PoE PD Controllers: Operation above 57V

    Part Number: TPS2375 Hi, Does TPS2375 have over voltage protection? If no, when VDD goes to above 57V, what is the operation of TPS2375 ? Is it turned off? If yes, can I call it over voltage protection? Thanks.
  • Bill Johns
    Bill Johns
    • 2 months ago
    • Power management
    • Power management forum

    [FAQ] BQ24040 and BQ2404X family Charge Complete Pin Behavior, /CHG

    The BQ2404X family of charger has a charge complete pin, /CHG to indicate charge in progress or complete. But under some conditions the battery charge has stopped (no current to battery) but /CHG indicates charge. In other case the battery is charging...
<>

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  • Don Dapkus
    Latest post by
    Don Dapkus
    • Oct 9, 2018 8:07 PM

    New Literature

    • Resolved
    • 1 Reply
    • 2062 Views
  • Don Dapkus
    Latest post by
    Don Dapkus
    • Jan 16, 2019 7:21 PM

    UCC21222: Q1

    • TI thinks resolved
    • 7 Replies
    • 349 Views
  • Bill Johns
    Latest post by
    Bill Johns
    • Jan 15, 2019 9:25 PM

    [FAQ] BQ24040 and BQ2404X family Trouble Shooting Tips, No Output, Charge Current Low, Early Termination and Others.

    • Resolved
    • 1 Reply
    • 363 Views
  • Bill Johns
    Latest post by
    Bill Johns
    • Jan 14, 2019 3:52 PM

    [FAQ] BQ24040 and BQ2404X family TS pin configuration of NTC and TTDM mode

    • Resolved
    • 1 Reply
    • 300 Views
  • kai klaas69
    Latest post by
    kai klaas69
    • Dec 23, 2018 12:45 PM

    WEBENCH® Tools/LMR33630: LMR33630

    • TI thinks resolved
    • 4 Replies
    • 1120 Views
  • John Wallace1
    Latest post by
    John Wallace1
    • Dec 17, 2018 9:24 PM

    CSD17571Q2: How to drive gate control of load switch with 3.3V signal

    • Resolved
    • 3 Replies
    • 921 Views
  • Samuel Jaffe
    Latest post by
    Samuel Jaffe
    • Dec 9, 2018 5:41 PM

    LM25088: How to interface an LVTTL signal to enable the LM25088 when used to generate a negative voltage?

    • TI thinks resolved
    • 1 Reply
    • 795 Views
  • Thomas Albrecht46
    Latest post by
    Thomas Albrecht46
    • Feb 17, 2019 7:57 PM

    BQ40Z60: Learning Cycle - Settings for 2 cells

    • TI thinks resolved
    • 23 Replies
    • 462 Views
  • Erman Arslan
    Erman Arslan
    • Feb 17, 2019 7:35 PM

    TPS40170: TPS40170 good choice?

    • 0 Replies
    • 19 Views
  • manoj sai
    Latest post by
    manoj sai
    • Feb 17, 2019 6:53 PM

    WEBENCH® Tools/BQ34Z100-G1: unable to read the correct current , due to changing the sense resistor type

    • TI thinks resolved
    • 10 Replies
    • 137 Views
  • Batt
    Latest post by
    Batt
    • Feb 17, 2019 6:41 PM

    CCS/BQ34Z950: BQ34z950

    • TI thinks resolved
    • 14 Replies
    • 223 Views
  • Shrikrishna Kaje
    Shrikrishna Kaje
    • Feb 17, 2019 4:23 PM

    LM25037-Q1: Thermal Protection

    • 0 Replies
    • 17 Views
  • LeonardEllis
    Latest post by
    LeonardEllis
    • Feb 17, 2019 3:50 PM

    Suitable solutions for AC/DC power supply 115/230V - 24Vdc/25A (600W)

    • TI thinks resolved
    • 3 Replies
    • 63 Views
  • dariusz jewula
    Latest post by
    dariusz jewula
    • Feb 17, 2019 3:11 PM

    UCC28780: UCC28780 - passive clamp flyback

    • Resolved
    • 4 Replies
    • 70 Views
  • Skate Lu
    Skate Lu
    • Feb 17, 2019 2:57 PM

    BQ24250: BQ24250 charging process burns off when the cell shortens

    • 0 Replies
    • 16 Views
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