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Showing 85 results View by: Thread Post Sort by
    Answered
  • UCC28730-Q1: HV- Startup

    Ponkamali P
    Ponkamali P
    Resolved
    Part Number: UCC28730-Q1 Other Parts Discussed in Thread: PMP23431 Tool/software: Hi, This post is the continuation of a previously asked question. Refer here: UCC28730-Q1: HV startup - Power management forum - Power management - TI E2E support forums …
    • Resolved
    • 3 months ago
    • Power management
    • Power management forum
  • UCC28730-Q1: HV startup

    Ponkamali P
    Ponkamali P
    TI Thinks Resolved
    Part Number: UCC28730-Q1 Other Parts Discussed in Thread: UCC28730 Tool/software: Hi, One of the reference designs for UCC28730 shows HV pin pull resistance of 900k for 60V-1000V Vin. (Refer image) According to datasheet, the start-up current required…
    • 3 months ago
    • Power management
    • Power management forum
  • UCC28730-Q1: Start-up Voltage

    Ramakrishna Challa2
    Ramakrishna Challa2
    Part Number: UCC28730-Q1 Other Parts Discussed in Thread: UCC28730 Tool/software: Hi Team, I would like to know is there any possibility if added circuit to can control the line voltage precisely about 50 +/- 3V using UCC28730-Q1 Below is the calcu…
    • 6 months ago
    • Power management
    • Power management forum
  • UCC28730-Q1: Minimum On time requirement

    Ponkamali P
    Ponkamali P
    TI Thinks Resolved
    Part Number: UCC28730-Q1 Tool/software: Hi, According to the datasheet, the minimum ON time of the MOSFET should be greater than t-csleb (leading edge blanking time). For my application, the design calculator suggests ~700uH of primary inductance, but…
    • 5 months ago
    • Power management
    • Power management forum
  • UCC28730-Q1: Instable Switching behavior

    runbo zhang
    runbo zhang
    TI Thinks Resolved
    Part Number: UCC28730-Q1 Tool/software: I have designed a 23 W Flyback-Converter with 1Outputs with a Inputvoltage of 250-800V and an Outputvoltage of 11V/2.1A. I am now trying to put the PCB in operation, but I am facing unstable switching behaviours…
    • 6 months ago
    • Power management
    • Power management forum
  • UCC28740-Q1: UCC28740-Q1 and 2. UCC28730-Q1

    Jithin  Elimban
    Jithin Elimban
    TI Thinks Resolved
    Part Number: UCC28740-Q1 Tool/software: Hello We are planning to use, UCC28740QDRQ1 and UCC28730QDRQ1 in our design, But we need it to operate over a temperature range of -55 to 150degC . But as per datasheet recommended operating temp is given as -40 to…
    • 8 months ago
    • Power management
    • Power management forum
  • UCC28730-Q1: How valley switch is realized in FM/AM mode

    Jass Jin
    Jass Jin
    Part Number: UCC28730-Q1 Other Parts Discussed in Thread: UCC28730 Tool/software: Hi expert, UCC28730 has this curve for EA output to current output. Between 1.3-2.2V, IPP control a fixed on-time and FM increase the switch frequency to increase the output…
    • 8 months ago
    • Power management
    • Power management forum
  • UCC28730-Q1: UCC28730-Q1 - Creepage

    Magí margalef
    Magí margalef
    TI Thinks Resolved
    Part Number: UCC28730-Q1 Other Parts Discussed in Thread: UCC28730 Hello, We have a concern about creepage at UCC28730-Q1 device. We have detected that in our design, we will have up to 510Vrms between HV pin and DRV pin. We need to ensure that the creepage…
    • over 1 year ago
    • Power management
    • Power management forum
  • UCC28730-Q1: UCC28730-Q1

    Magí margalef
    Magí margalef
    Part Number: UCC28730-Q1 Other Parts Discussed in Thread: UCC28730 Hello, Regarding the controller UCC28730-Q1, I have another 2 concerns: 1. In order to keep the stability in all the operating range, it is indicated the next equation of Cout (Ecuation…
    • over 1 year ago
    • Power management
    • Power management forum
  • UCC28730-Q1: UCC28730-Q1 control

    Juri E.
    Juri E.
    TI Thinks Resolved
    Part Number: UCC28730-Q1 Dear Team, Customer has been analyzing the UCC28730-Q1 datasheet, and raised some queries regarding the control. Please, can you give us your feedback? VCCR parameter Datasheet: “The term VCCR is the product of the demagnetization…
    • over 1 year ago
    • Power management
    • Power management forum
>

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