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  • UCC28780: UCC28780 startup issue

    Part Number: UCC28780 I'm working on a new design with the UCC28780. Startup is going through the normal sequence until it gets to the step where the RUN pin is supposed to go high. Run doesn't go high and PWML never goes high. VDD continues to drop until…

  • UCC28780: Simulation Model

    Part Number: UCC28780 Hey, I'm doing a bachelors project and will be using the UCC28780, the problem is that due to restrictions I cant use simplis, but only LTspice, would it be possible to get a model for LTspice of this controller? Thanks, M…
    • Answered

  • UCC28780: Cross regulation

    Resolved
    Part Number: UCC28780 Bonjour, Je souhaite faire un design Flyback ACF avec un UCC28780. Mes contraintes sont le rendement, la température de fonctionnement, la tension Vds max et la compacité. Le flyback comportera 4 sorties 15V/0.5A. La regulation…
    • Resolved

  • UCC28780: UCC28780

    TI Thinks Resolved
    Part Number: UCC28780 Tool/software: When I try to import the simplis model in my free simplis version it gives me the below error Welcome to SIMetrix/SIMPLIS Elements . For help using this application, please use the help menu located above. Error…

  • UCC28780: UCC28780: SWS and HVG pin using Enhancement Mode FET

    TI Thinks Resolved
    Part Number: UCC28780 I know the datasheet recommends a depletion type fet for the initial charging of the chip through the sw pin. But the depletion type FET's available to us in the high voltage packages are quite limited or straight up too big for…

  • UCC28780: UCC28780

    Part Number: UCC28780 Tool/software: Helo: We are going to use this chip for converting 30V to 100V for a 200W converter. Isolated. What other flyback chips can you suggest? Also: what chip will give us a feeback loop of high bandwidth so that…
    • Answered

  • UCC28780: ACF for 802.3bt 100W PoE

    Resolved
    Part Number: UCC28780 Other Parts Discussed in Thread: PMP31092 Hi, Does TI have ACF solution can support below application? Input: 20VDC Output: 57V/ 100W Isolated DC-DC converter for 802.3bt 100W PoE? If yes, Is any reference design can share…
    • Resolved

  • UCC28780: Transformer Design Help for 60W UCC28780 + LMG2610 + UCC24612 Flyback Adapter

    Part Number: UCC28780 Other Parts Discussed in Thread: UCC24612 , , LMG2610 Tool/software: Subject: Transformer Design Guidance for 60W Adapter using UCC28780, UCC24612, and LMG2610 Message: Dear TI Support Team, I am currently designing a 60W…

  • UCC28750-SIMPLIS: UCC24612 & UCC28780 Simplis simulation

    TI Thinks Resolved
    Part Number: UCC28750-SIMPLIS Other Parts Discussed in Thread: UCC28780 , UCC24612 , UCC28782 Hello, Sorry for the wrong TI part number, the correct ones aren't avaliable. I would like to make a simulation of a flyback converter using UCC28780, and…

  • UCC28780EVM-021: Flyback Design with 400–1000 V Input – ACF Suitability (UCC28780)

    TI Thinks Resolved
    Part Number: UCC28780EVM-021 Other Parts Discussed in Thread: UCC28780 , Hi Team, I am working on a flyback design with the following requirements: Input voltage: 400 V to 1000 V DC Output: 15 V, 5 A (75 W) I would like to understand the…

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