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  • RE: UCC28500: UCC28500 current amp

    Hello, I reviewed the data sheet and VCM generally refers to the common mode voltage. Which is the average of the two inputs of the error amplifier. The UCC28500 current amplifier is inverting feedback and the + pin of the amplifier is connected…

  • UCC28500: UCC28500 CMRR test condition

    TI Thinks Resolved
    Part Number: UCC28500 Hi! I can’t understand what mode of CMRR measurement of current amplifier in UCC28500 is based on datasheet slus419c p3, CMRR measurement test. It is necessary to short the pins ISENSE1 and MOUT, apply common-mode voltage from…

  • UCC28500: The PGND & SGND of UCC28500

    TI Thinks Resolved
    Part Number: UCC28500 Hello TI members, What's the different between PGND & SGND of UCC28500? Is there any connection between PGND & SGND inside the IC? For example: pin 4(OVP) of UCC28500, what reference ground should be connected: PGND or SGND?…
    • Answered

  • UCC28500: Looking for UCC28500 EVM to evaluate the part

    Resolved
    Part Number: UCC28500 Hi Team, We are looking for UCC28500 EVM but didn't see it on the website. Please kindly suggest if we have one or is there other alternative support that we can use to evaluate the part? Thank you.
    • Resolved

  • UCC28500: UCC28500 startup issue

    Part Number: UCC28500 Other Parts Discussed in Thread: UCC25800 Hello, My customer is using UCC25800 for a Boost + forward converter, the input range is 150V-800V DC, output is 24V. And for boost stage the output is 460V, no PFC function required…
    • Answered

  • UCC28500: Forward auxiliary power design

    Resolved
    Part Number: UCC28500 Hello Ti, the circuit below is the design example which come from page 13 of UCC28500's datasheet. Here is my question: How is the auxiliary power circuit work? The design of D5 & D7 is unlike the standard forward…
    • Resolved
    • Answered

  • UCC28500: ask for device status of UCC28502, and other solution suggestion

    Resolved
    Part Number: UCC28500 Other Parts Discussed in Thread: UCC38502 , UCC29950 Hi Team, My customer found UCC28502 in data sheet but I couldn't find UCC28502 information. I would like to double confirm if UCC28502 is EOL already? Also I would like…
    • Resolved

  • UCC28500

    TI Thinks Resolved
    Other Parts Discussed in Thread: UCC28500 , UCC29950 The last review of the data sheets I have for the UCC28500 is November 2001. I wounder if there is a newer revision or a newer product. I am selecting the controller for a PFC + forward controller …

  • UCC25800-Q1: UCC25800-Q1

    TI Thinks Resolved
    Part Number: UCC25800-Q1 Other Parts Discussed in Thread: UCC28500 Tool/software: hi unencrypted spice model of part UCC28500 is not available on site please help us to find it. thanks

  • UCC28950: shim inductor is heating up

    TI Thinks Resolved
    Part Number: UCC28950 Other Parts Discussed in Thread: UCC28500 , UCC256402 Hello, I am designing a PSFB with a power of 250V input 28V output 1200W, my only problem when running is that my shim inductor gets too hot the coil current and voltage are…

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