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Showing 201 results View by: Thread Post Sort by
  • yogesh ramdasi
    yogesh ramdasi
    • 5 months ago
    • Power management
    • Power management forum

    UCC27714: ucc27714

    TI Thinks Resolved
    Part Number: UCC27714 please refer section 7.4.3 (in datasheet of ucc27714) about forward converter which mosfets are recommended for charging cboot is it possible to use this forward conveter for pure reistive load please reply Regards Yogesh...
  • Zirui Su
    Zirui Su
    • 5 months ago
    • Power management
    • Power management forum

    UCC27714: Question of its CMTI and related issue

    TI Thinks Resolved
    Part Number: UCC27714 In UCC27714 datasheet page 4 I can see that the dVhs/dt max is equal to 50V/ns, I would like to ask about its CMTI related question: a) What is the difference between CMTI and slew rate, are they refer to different objects? b...
  • Richard Herring
    Richard Herring
    • 4 months ago
    • Power management
    • Power management forum

    RE: UCC27714: Low-side MOSFETs disabled but getting hot, with 5% high-side PWM.

    Hello Farmer Jo, It is good to hear your latest changes have, I assume, resolved your remaining issues. The questions you asked regarding loss, or drop of the bridge input voltage and same with the driver bias, in itself would not damage the driver...
  • Richard Herring
    Richard Herring
    • 5 months ago
    • Power management
    • Power management forum

    RE: UCC27714: C_Boot charging circuit

    Hello Felix, I have edited the datasheet drawing with the different resistor arrangement as discussed in the previous E2E forum. I would suggest this approach to limit the current in the boot resistance, so separate the boot resistance from the pull...
  • Mamadou Diallo
    Mamadou Diallo
    • 5 months ago
    • Power management
    • Power management forum

    RE: WEBENCH® Tools/UCC27714: UCC27714 working

    Hello Gandhali, Thanks for reaching out. This will not work, unless you have dedicated floating bias on HB-HS as the bootstrap circuit is not compatible with your application given that the boot cap needs a path to GND to replenish when the high-side...
  • Richard Herring
    Richard Herring
    • 6 months ago
    • Power management
    • Power management forum

    RE: UCC27714: Input pull down

    Hello GI, I cannot comment on tradeoff of adding pull down resistance regarding the impact to the uC GPIO pins performance. I would ask would if a 10K pulldown resistance would have any negative impact on the uC output pins generating the PWM drive...
  • Antonio Fadhel
    Antonio Fadhel
    • 25 days ago
    • Power management
    • Power management forum

    UCC28950: Channel D Output Unexpected Long On-Time

    TI Thinks Resolved
    Part Number: UCC28950 Hi Team, My customer is having a UCC28950 issue with long on-times on the D FET causing high current and eventual FET failure. They tried increasing the slope comp and it did not help, so they believe it might be due to noise in...
  • 6052478
    6052478
    • 8 months ago
    • Power management
    • Power management forum

    UCC27714: Bootstrapped High side fets not switching

    TI Thinks Resolved
    Part Number: UCC27714 Hi I have the low side fets switching fine, but the high side ones are not doing much, below is this portion of the schematics: Mosfets are FDP61N20 U8 is the UCC27714 U9 is isolation ISO7730FDWR D26 is standard diode...
  • Dylan Bartlett1
    Dylan Bartlett1
    • 10 months ago
    • Power management
    • Power management forum

    UCC27714: Enable pin not working correctly under simulation

    • Resolved
    Part Number: UCC27714 Hi, I am working with the SPICE model for the UCC27714 gate driver
  • Howard Zou
    Howard Zou
    • 9 months ago
    • Power management
    • Power management forum

    UCC27714: level shift inquiry

    • Resolved
    Part Number: UCC27714 Hi, in the internal circuit for HI to HO level shift. It's two Vss/HS level
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