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  • RE: TPS40400: I2C getting ack at wrong address

    Vishnu PR That is what it is. The routine is using receive byte, which starts a transaction with the device address followed by a Read Bit, which is an invalid transaction type per the PMBus standard. That is creating the invalid data flag. You can…
    • Answered

  • TPS40400: Vout reading through GUI is lower than voltage measure on Vsns+ - Vsns-

    Resolved
    Part Number: TPS40400 Other Parts Discussed in Thread: USB-TO-GPIO , Hi Team, during test on EVM, we find Vout reading through GUI is lower than voltage measure on Vsns+ - Vsns- . Please kindly see below. test point on EVM : TP6 and TP18. TP6 and TP18 is…
    • Resolved
    • Answered

  • TPS40400: tps40400 no output

    Resolved
    Part Number: TPS40400 I designed a tps40400. But there is no output. Circuit is same with your webench. BP3, BP6,VDD pin voltage is normal. There is no switching signal. GUI status error is Vout OVF. I don't know what's problem.
    • Resolved

  • TPS40400: Operating current question

    TI Thinks Resolved
    Part Number: TPS40400 Hi Team, Would you advise what condition does Ivdd become max of 15mA specified in datasheet below? I'd like to suggest lower power consumption usage to the customer. So please help to advise it. Thanks Best regards, Shidar…

  • TPS40400: TPS40400 program burning issue

    Part Number: TPS40400 Hi Expert, My customer is using TPS40400 on one project. During the program burning procedure on the product line, they found one module couldn't import the input UVLO register value successfully. They checked the operation method…

  • TPS40400: Dutymax question

    TI Thinks Resolved
    Part Number: TPS40400 Other Parts Discussed in Thread: LMG1210 Hi Team Would you advise my customer's question? Duty max is defined for ex) as 85%(min) at Fsw=1.2MHz in datasheet. Is this value change to higher value when Cload is less than 2.2nF…

  • TPS40400: Power saving method

    TI Thinks Resolved
    Part Number: TPS40400 Other Parts Discussed in Thread: TPS549B22 , TPS549D22 , PMP21440 , LMG1210 , TPS40101 , TPS40322 Hi Team, Would you advise does TPS40400 have power saving internal register setting or external part which can save power? My customer want…
    • Answered

  • TPS40400: Fusion Digital Power Designer I2C Issue

    Resolved
    Part Number: TPS40400 Hello, I have a customer who has designed the TPS40400 onto their board, and they are having an issue connecting to Fusion Power Designer. They are using the TI USB Interface Adapter (connecting only SDA and SCL, not the Alert line…
    • Resolved

  • TPS40400: Implement DVFS on TPS40400

    TI Thinks Resolved
    Part Number: TPS40400 Other Parts Discussed in Thread: TPS650861 , TPS549B22 , TPS549D22 , TPS546C20A , TPS546A24A , TPS546B24A , TPS546D24A We are now estimating to implement DVFS on TPS40400. There are some questions we would like to have clarification f…

  • WEBENCH® Tools/TPS40400: NA

    Part Number: TPS40400 Tool/software: WEBENCH® Design Tools TPS40400 around 1% damaged failure rate was found at manufacturing process (function test station). a test fixture with TI USB i2c tools, CLK and DATA singnal pin connect to TPS40400 via test probe…

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