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  • TPS40428: USB-TO-GPIO2 for TPS40428

    TI Thinks Resolved
    Part Number: TPS40428 Other Parts Discussed in Thread: USB-TO-GPIO2 , Hi team Customer is using TPS40428 and now it's running production, could you please help to confirm if USB-TO-GPIO2 can support TPS40428? Because customer reflect that they can download…
    • Answered

  • TPS40428: Questions about the TPS40428

    Resolved
    Part Number: TPS40428 I am using TPS40428 in a design and I have some questions. I couldn't find anywhere in the datasheet that it's written explicitly what is the maximum current the converter can supply when operating in 2-phase mode (when using…
    • Resolved

  • TPS40428: Current readout (READ_IOUT) does not seem to be correct.

    Part Number: TPS40428 Tool/software: Hello, We are using a TPS40428 in multiphase output with a pair of CSD95378B devices to drive an FPGA core voltage at 0.75 Volts, pretty much per the schematic in the datasheet. I am testing the PMBUS READ_IOUT…

  • TPS40428: Can I power CSD95378 with 24V Vin?

    Part Number: TPS40428 Dear TI expert, I was original using TPS40428 + 2* CSD95378 to power Xilinx UltraScale FPGA, 12Vin => 1V, 40A But now I changing my design to power Xilinx Versal Prime FPGA, 24Vin => 0.88V, 40~60A I see CSD95378 Recommand…
    • Answered

  • TPS40428: TPS40428 start up cause OVF and may shut down randomly

    Resolved
    Part Number: TPS40428 Hi Ti team, I have build a board with TPS40428 and 2x CSD95378B for evaluation, using 12V input to provide 1V output, design reference from PMP9444 but now my system have 2 issues 1/ OVF are easily triggered when enable TPS40428…
    • Resolved
    • Answered

  • TPS40428: TPS40428 1V output Schematic check

    Resolved
    Part Number: TPS40428 Hi all, I have a project driving a Xilinx UltraScale FPGA and I designing the power supply referencing PMP9444 but my project have a target VCCINT on 1V so I have pick new res/cap value base on datasheet formula in my design…
    • Resolved

  • TPS40428: ADDR Pin Resistor Range

    TI Thinks Resolved
    Part Number: TPS40428 Hi team We are using TPS40428 for POL power supply, and we are wondering if we have a range of ADDR resistor? Like the figure below, we only get the exact resistor value here, but we need to know the max tolerance at the same time…
    • Answered

  • TPS40428: Can the PG pin always pull-up

    Resolved
    Part Number: TPS40428 Hi Sir, I have design fault that pin29 (PG1) and pin30(ISH1) shorted, which pull the ISH net to GND cause the IC think no current output Is there any register code I can disable the PG1 pin and always pull high? It will…
    • Resolved

  • TPS40428: PWM abnormal and may cause large current

    Part Number: TPS40428 Hi TI Team, I have some re-spin PCBs return but I found the chip performance is not very stable now. When I apply the enable signal to TPS40428+CSD95378B, the system cannot provide 1V output in 1 go. As I see it usually cause…

  • TPS40428: Abnormal when set VOUT=5V

    Part Number: TPS40428 Hi expert team Customer is using TPS40428 with CSD95378, the VIN is 12V. We encountered some abnormal issue: when they set VOUT=5V via FB resistor, the duty cycle will be nearly 100%. But if we adjust the VOUT via PMBus, the circuit…

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