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  • UCC25630-1EVM-291: UCC25630-1 EVM QE issue

    Resolved
    Part Number: UCC25630-1EVM-291 1.Currently EVM is 120W. Can you explain why the design tool selects LN=13.5 with respect to QE=0.15 ? 2.I would like to evaluate a 300W server power. Can I have your reference design about LN and QE= ?
    • Resolved
    • Answered

  • UCC25630-1EVM-291: Indy use requires more caps to output

    Resolved
    Part Number: UCC25630-1EVM-291 Hi Ben-san. Same strict customer (Indy). Maybe you are familiar to consumer customer. Consumer power unit want to reduce secondary caps. But Indy stand alone power unit must withstand for the customer side additional caps…
    • Resolved
    • Answered

  • UCC25630-1EVM-291: Is the NC AC+ an option to supply DC Input?

    Resolved
    Part Number: UCC25630-1EVM-291 Hello team, Hope you are doing well. When you get a chance can you help with below customer question: I am studying up on the UCC25630 series for an off line supply. I looked at the schematic for the demo, and I see that…
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    • Answered

  • UCC25630-1EVM-291: Modified 5V output transformer problem

    Resolved
    Part Number: UCC25630-1EVM-291 Hi Ben-san, Change the part constants of the evaluation board to the following and output from 12 V output to 5 V output Evaluation was carried out but it does not work properly. (U1 uses UCC 256302.) <Constant change>…
    • Resolved

  • CCS/UCC25630-1EVM-291: I need the source code for the LLC EVM

    TI Thinks Resolved
    Part Number: UCC25630-1EVM-291 Other Parts Discussed in Thread: UCD3138A , , UCD3138 , UCD3138ALLCEVM150 Tool/software: Code Composer Studio Need the source code for the EVM that we're using to evaluate the UCD3138a chip. We are building an LLC module…
    • Answered

  • UCC25630-1EVM-291: modified to use of UCC256302 OCP detail

    Resolved
    Part Number: UCC25630-1EVM-291 Hi Ben-san, My customer want OVP latch and OCP auto restart. OVP is ok by adding zener Di BLCC to FB. But OCP restart by gradually current decrease is not good. Please answer to below. ① Output overcurrent protection It…
    • Resolved
    • Answered

  • UCC25630-1EVM-291: 10Hz load transient response evaluation

    Resolved
    Part Number: UCC25630-1EVM-291 Other Parts Discussed in Thread: UCC256302 , , UCC28056 Ben-san, UCC25630-1EVM-291 (IC changed to UCC256302) LLC load transient response evaluation With the combination of PFC and LLC (input AC100 V, output DC 12 V 10 A condition…
    • Resolved

  • UCC25630-1EVM-291: AC instantaneous interruption test 50msec

    TI Thinks Resolved
    Part Number: UCC25630-1EVM-291 Other Parts Discussed in Thread: UCC256302 Ben-san, Configlation is below. Replace the IC of UCC 25630-1 EVM - 291 with UCC 256302, Connect pin 1 pin HV pin to J9 output of UCC 28056 EVM - 296 via resistor Connect pin 12…
    • Answered

  • UCC25630-1EVM-291: UCC256302 problem with Leakage inside Trans.

    Resolved
    Part Number: UCC25630-1EVM-291 Hi-Ben san, In the combination operation of PFC + LLC, the LLC transformer is self-made and replaced and the output transient characteristic of LLC is evaluated. When the load sudden change test of the maximum load (100…
    • Resolved
    • Answered

  • UCC25630-1EVM-291: UCC256302 use Dual output transformer Startup problem

    Resolved
    Part Number: UCC25630-1EVM-291 Hi Ben-san, My customer tried dual output transformer below. Please advice me. We modified the evaluation board for 2 outputs, We are considering application for 2 output. So please respond to the following questions. Question…
    • Resolved

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