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Showing 138 results View by: Thread Post Sort by
    Answered
  • TPS54540: Instability in negative buck-boost converter

    Thomas Larsen
    Thomas Larsen
    Resolved
    Part Number: TPS54540 Hi TI We use TPS54540 in an inverting buck configuartion. We have automated test systems that analyse the switching waveform of the DCDC converters, for verifying proper function. But on one out of 50 units, our inverting buck…
    • Resolved
    • 1 month ago
    • Power management
    • Power management forum
  • TPS54540: TPS54540DDAR ENABLE

    venkatesh N
    venkatesh N
    TI Thinks Resolved
    Part Number: TPS54540 Tool/software: Hi, For the IC TPS54540DDAR can we supply more than 8.4V to the ENABLE PIN to set " Under Voltage Lockout"? if so what is the maximum voltage we can supply. in datasheet it is mentioned that when we exceed more than…
    • over 1 year ago
    • Power management
    • Power management forum
  • Answered
  • TPS54540: TPS54540 Theta Jctop Ja heat spec

    Daisuke Nomura
    Daisuke Nomura
    Resolved
    Part Number: TPS54540 I am TSR for NEC. I got the following question from NEC. Please answer it. For TPS54540DDAR at Input 24V, Output 5V & 3.3V, Customer is considering using it in a power supply circuit. Looking at the data sheet, the thermal…
    • Resolved
    • over 2 years ago
    • Power management
    • Power management forum
  • TPS54540: TPS54540DDAR schematics review

    Kevin Huang8
    Kevin Huang8
    TI Thinks Resolved
    Part Number: TPS54540 Tool/software: Hi , Please confirm reflow condition is correct, thanks!
    • over 1 year ago
    • Audio
    • Audio forum
  • Answered
  • TPS54540: Vin will be pulled down to 4V when the load is high above 0.7A

    Yang RuoFei
    Yang RuoFei
    Resolved
    Part Number: TPS54540 Tool/software: attach the schematic. the issue is: when the load is less than 0.7A, the Vout is working normally. when the load is higher above 0.7A, the Vin will be pulled down to 4V, lead Vout can not output normally. …
    • Resolved
    • over 1 year ago
    • Power management
    • Power management forum
  • TPS54540: TPS54540 and TPS84529

    Ray Vincent Aranzaso
    Ray Vincent Aranzaso
    TI Thinks Resolved
    Part Number: TPS54540 Other Parts Discussed in Thread: TPS84259 , TPS54040A , TPS54060A , TPS5430 , TPS5450 Hi, Good Day. I have a customer who is working with TPS54540 and TPS84529. Please see below his query for your reference. Thank you very much…
    • over 3 years ago
    • Power management
    • Power management forum
  • Answered
  • TPS54540: Does TPS54540 Vout can quick discharge when remove the loading?

    Jimmy Gong
    Jimmy Gong
    Resolved
    Part Number: TPS54540 Other Parts Discussed in Thread: TPS62903-Q1 Hi team, My customer asked that can TPS54540 quick discharger when we remove the loading? they have one situation that will disable output loading and this moment would need to Vout…
    • Resolved
    • over 3 years ago
    • Power management
    • Power management forum
  • TPS54540: TPS54540DDAR Spec for Heat resistance Theta JCtop Ja

    Daisuke Nomura
    Daisuke Nomura
    TI Thinks Resolved
    Part Number: TPS54540 I am TSR for NEC. I got the following questions from NEC engineer. For TPS54540DDAR at Input 24V, Output 5V & 3.3V, Customer is considering using it in a power supply circuit. Looking at the data sheet, the thermal resistance…
    • over 2 years ago
    • Power management
    • Power management forum
  • Answered
  • TPS54540: CIN Minimum Equation

    Ully Raihany
    Ully Raihany
    Resolved
    Part Number: TPS54540 Hi All I did calculations for each component selection for TPS54540, but I didn't find the formula for Minimum Capacitor Input (CIN_Min) I would like to know is there any equation for CIN_Min selection? Looking forward…
    • Resolved
    • over 3 years ago
    • Power management
    • Power management forum
  • Answered
  • TPS54540: Start Up sequence for Switching Frequency

    Ully Raihany
    Ully Raihany
    Resolved
    Part Number: TPS54540 Hi All, I tried to measure the switching frequency for IC TPS54540 , we get the normal frequency at 2MHz in the operating condition But when I try to measure the start up sequence of Switching frequency with the Oscilloscope…
    • Resolved
    • over 3 years ago
    • Power management
    • Power management forum
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