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  • UCC28722: Stability issue of Vcs Pin Voltage

    TI Thinks Resolved
    Part Number: UCC28722 Dear sir , We are trying to operate the UCC28722 for buck converter design application (380 V Nominal Input and 15V Output ). We have used darlington pair instead of NPN transistors as Switching device .While operating the converter…

  • UCC28722: Darlington pair for higher power non-isolated buck converter

    TI Thinks Resolved
    Part Number: UCC28722 Other Parts Discussed in Thread: PMP7668 , Hello, We want to use UCC28722 to create a non-isolated auxiliary supply of 6W for our PFC after reading your document SLUA721A. Given our Ipeak for the BJT is slightly high. We wanted to use…

  • UCC28722: BJT、MOSFET

    TI Thinks Resolved
    Part Number: UCC28722 Dear Sir/Ms. I am designing a 10W power supply with UCC28722. Can I replace the BJT with MOSFET? Best Regards, Jacky Yang

  • UCC28722: UCC28722 Power on Issue

    TI Thinks Resolved
    Part Number: UCC28722 Dear Sir/Ms. The following are the problems encountered by the customer UCC28722 during testing. Input DC24V Output DC23V Power 20W When the power is turned on, the output voltage is abnormal, and a triangle wave between 21V and 7…
    • Answered

  • UCC28722: CC mode of the IC

    Resolved
    Part Number: UCC28722 Other Parts Discussed in Thread: UCC28704 , Hello, In the datasheet it is given that Vccr is 330 mV. I want to understand if this a calculated value or a fixed reference for CC mode of the CS Pin voltage. Vcst (max) is given as 780mV…
    • Resolved

  • RE: WEBENCH® Tools/UCC28722: Error while adding model in TINA

    Hello Arun, I'm sorry it took so long for me to get back to you on this issue. Here is what was found: It looks like the subcircuit "one_shot" is declared twice in the larger model. This should not be done in any Spice simulator. The initial…

  • UCC28722: UCC28722

    TI Thinks Resolved
    Part Number: UCC28722 Hi Regarding 28722 the capacitor on VDD pin is mentioned is slau721a is 4.7 mfd, if I reduce to 2.2 mfd which parameter I should check so that functionality of UCC28722 should not get affected.

  • RE: UCC28722: UCC28722

    Rishabh If you exceed the abs max rating of UCC28722 the device may not immediately fail. What abs max means is that once it is exceeded, TI no longer guarantees that the device will operate as specified in the datasheet. What could happen is that the…
    • Answered

  • UCC28722: about PSpice Model

    Resolved
    Part Number: UCC28722 Other Parts Discussed in Thread: TINA-TI , UCC28700 Hello E2E, I tried import to TINA-TI the PSpice model of UCC28722. However I could not import it. Apparently the file has a problem with Line-10. Does TI have any information about…
    • Resolved
    • Answered

  • UCC28722: how to find and select an industrial grade IC?

    Resolved
    Part Number: UCC28722 Other Parts Discussed in Thread: UCC28701 , UCC28711 , UCC28730 , UCC28720 , UCC28710 , UCC28700 Hi Everybody, one should to find and select ( for example a switching controller ) an IC with industrial grade ( no home appliances ). how…
    • Resolved

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