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  • TPS549D22: Could you help to let us know why TPS549D22's PEC failed

    TI Thinks Resolved
    Part Number: TPS549D22 Hi Team, Our customer used TPS549D22 and they found 0x19=0xD0 and 0x7E=0x82. From 0x7E register value, PEC(packet error check) failed. However, from 0x19 register, PEC function is supported. Could you let me know how to further…
    • Answered

  • TPS549D22: Calculation tool for TPS549D22

    Resolved
    Part Number: TPS549D22 Hello expert, Do we have TPS549D22 calculation tool as excel file? Thanks a lot! Best regards, Ann Lien
    • Resolved

  • TPS549D22: Difference between TPS548D22 nd TPS549D22

    TI Thinks Resolved
    Part Number: TPS549D22 Other Parts Discussed in Thread: TPS548D22 , Hello expert, May we know the difference between TPS548D22 and TPS549D22? I saw there is only PMBus signal and FSEL/ADDR difference between pinout. May we know if there is anything difference…

  • TPS549D22: TPS549D22RVFR - X-ray unclean， voids are found

    TI Thinks Resolved
    Part Number: TPS549D22 Other Parts Discussed in Thread: TPS548D22 Hi, We met a question about below： 1. C-SCAN(Die surface): To inspect for the existence of defect, voids is visible for tested sample. 2. C-SCAN(Leadframe): To inspect for the existence of…

  • TPS549D22: Schematic review

    TI Thinks Resolved
    Part Number: TPS549D22 Hello, My customer wants to use the TPS549D22 with the following conditions: * PVIN=12V / VOUT=0.85V / Switching frequency : 650KHz * Normal operation under the above conditions without PMBus control Could you please review the…
    • Answered

  • TPS549D22: Can't assert TPS549D22 SMB_ALRT pin

    Resolved
    Part Number: TPS549D22 Hi TI, I can't assert SMB_ALRT pin. The following is my test command. Test command: # Check write protect. # 0x0: Enable writes to ALL commands i2cget -y 0 0x14 0x10 -> 0x00 # Read VOUT_MARGIN_HIGH i2cget -y 0 0x14 0x25 …
    • Resolved

  • TPS549D22: TPS549D22

    TI Thinks Resolved
    Part Number: TPS549D22 Hi Team, We need clarification on the listed quires, please update at the earliest. Does a restart need to occur to clock in TPS549D22 changes via its pin strap programming pins? Does a restart need to occur to clock in TPS549D22…
    • Answered

  • TPS549D22: Pin Strap Register Settings on Powerup and NVM

    Resolved
    Part Number: TPS549D22 I have a question about the default values of the following registers on reset... 「 VOUT_COMMAND 」 「 VOUT_MARGIN_HIGH 」 「 VOUT_MARGIN_LO 」 The lower 10-bits are set by the pin-strap on boot/initializaiton. I understand that the initial boot…
    • Resolved

  • RE: [FAQ] TPS549D22: Can the PMBus circuits in the TPS549B22 / TPS549D22 support 1.8V pull-up termination voltage?

    FAQ
    • Answered

  • TPS549D22: Read output voltage

    Resolved
    Part Number: TPS549D22 Hello, Does the TPS549D22 have a SMbus register which indicates the effective output voltage? Can it measure it’s output voltage (at the SENSE pins) and provide the value in a register? I know that the output value can be calculated…
    • Resolved

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