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Showing 95 results View by: Thread Post Sort by
    Answered
  • TPS549D22: Can't assert TPS549D22 SMB_ALRT pin

    YaoTien Huang
    YaoTien Huang
    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
    • over 3 years ago
    • Power management
    • Power management forum
  • Answered
  • TPS549D22: TPS549D22

    Raghavendra M
    Raghavendra M
    Resolved
    Part Number: TPS549D22 Hi Team, Customer wants to change the voltage setting in the internal NVM. It will be difficult for my customer to turn the output off while device is operating to use STORE_DEFAULT_ALL, as they would end up violating their power…
    • Resolved
    • over 4 years ago
    • Power management
    • Power management forum
  • [FAQ] TPS549D22: Can the PMBus circuits in the TPS549B22 / TPS549D22 support 1.8V pull-up termination voltage?

    Peter James Miller
    Peter James Miller
    TI Thinks Resolved
    Part Number: TPS549D22 Other Parts Discussed in Thread: TPS549B22 , Question: Can the PMBus pins on the TPS549B22 and TPS549D22 support a 1.8V I/O termination voltage for the pull-up resistors? Answer: The TPS549B22 and TPS549D22's PMBus pins are designed…
    • over 3 years ago
    • Power management
    • Power management forum
  • TPS549D22: Schematic review

    JH Shin
    JH Shin
    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…
    • over 3 years ago
    • Power management
    • Power management forum
  • Answered
  • TPS549D22: TPS549D22 PMBUS issue

    Yang Wu
    Yang Wu
    Resolved
    Part Number: TPS549D22 Other Parts Discussed in Thread: TPS546D24A Hi Team, My customer has PMBUS communication failure issue when using TPS549D22 (replace EM2260 ) with 1SG110HN2F43E2VG FPGA . Question: Does TPS549D22 have 8Bh register? I find 8Bh in…
    • Resolved
    • over 4 years ago
    • Power management
    • Power management forum
  • Answered
  • TPS549D22: Read output voltage

    Simeon Aleksandrov
    Simeon Aleksandrov
    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
    • over 3 years ago
    • Power management
    • Power management forum
  • Answered
  • TPS549D22: Pin Strap Register Settings on Powerup and NVM

    Darren (FAE)
    Darren (FAE)
    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
    • over 3 years ago
    • Power management
    • Power management forum
  • TPS549D22: About PMBUS

    Richard Yang1
    Richard Yang1
    TI Thinks Resolved
    Part Number: TPS549D22 Hi Team: Can you help to comment on the following questions, thanks! 1: there is no statement on the PMBUS Pin , such as open drain, if this device is the open-drain type? if the external pull up is need? because there is no any…
    • over 3 years ago
    • Power management
    • Power management forum
  • TPS549D22: How to programming the Vout on the flying?

    Allen Li2
    Allen Li2
    TI Thinks Resolved
    Part Number: TPS549D22 Hi Ti Expert: We have the design as below: 1. Vset=0.75V 2.Rtop=10K, Rbot=63.4K to get Vout=0.87V Now, we need to adujst the Vout to 0.83V on the flying, what is the step to do it? Thanks
    • over 3 years ago
    • Power management
    • Power management forum
  • TPS549D22: programming times

    Denny Huang
    Denny Huang
    TI Thinks Resolved
    Part Number: TPS549D22 Dear team The customer would like to know how many programming times can TPS549D22 support, could you help to recommend? Many thanks Denny
    • over 3 years ago
    • Power management
    • Power management forum
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