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  • UCC24630EVM-636: Modifications for higher power

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    Part Number: UCC24630EVM-636 Hello, We successfully modified this board to increase the output voltage from 19.5V to 24V by changing the feedback resistors, the secondary side rectification resistors, and adjusting the OVP appropriately. This circuit…
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  • LM5023: Modifying EVM for 24Vout (UCC24630EVM-636 )

    Resolved
    Part Number: LM5023 Other Parts Discussed in Thread: UCC24630EVM-636 , Hello, We would like to modify the UCC24630EVM-636 to output 24V instead of 19.5V. From what I've gathered so far we would need to modify these sections. Can you confirm? Quasi…
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  • LM5023-2NBEVM: UCC24630

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    Part Number: LM5023-2NBEVM Other Parts Discussed in Thread: UCC24630EVM-636 , LM5023 , UCC24630 , UCC24610 , LM5023-2EVM Notebook Adapter VOUT Output voltage ripple VIN = nom, IOUT = max load 100 mVPP UCC24630EVM-636 ΔVOUT Output…
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  • RE: Looking for a CRM mode buck controller

    Hello Stanley, The UCC24630EVM-636 is an evaluation module that uses the LM5023 quasi resonant pwm controlller and the UCC24630 synchronous rectifier controller. https://www.ti.com/tool/UCC24630EVM-636 We have no reference design available that meets your…
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  • WEBENCH® Tools/UCC24630: Design guidance on AC/DC adapter dual output

    Resolved
    Part Number: UCC24630 Other Parts Discussed in Thread: UCC28740 , LM5023 Tool/software: WEBENCH® Design Tools HI I am trying to design flyback power supply with below spec, I am looking for design ideas 1. input 85V -235V AC 50/60Hz 2. Output 12v 5A…
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  • RE: UCC28740: Device not starting, Gives one pulse per second

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    You need to go to "View online" to see the two documents. Or use the below two links to get the documents mentioned. www.ti.com/.../ucc24630evm-636 www.ti.com/.../ucc28740evm-525

  • RE: UCC28C45: UCC28C45 UVLO Issue

    Hi Yanbo, The LM3864 is a comparator that is power through the resistive sense chain on its input, it also contains its won internal reference. You can see how it is used in the UCC24630 EVM, www.ti.com/.../ucc24630evm-636 . It could be used to pull the…
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  • RE: thread id:1-1A9JPKC

    Resolved
    This reference design is close to what you are looking for, Joshi. www.ti.com/.../PMP10350 85-265VACin to 12V 5A isolated output. 60W You are asking for 14V 5A, 70W, so this is close. UCC28710 is the controller. There is a UCC24630EVM, and LM5023 controller…
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  • What is the best Synchronous Rectifier controller for Quasi-resonant control like LM5023? LM5023 switching frequency on EVM?

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    Other Parts Discussed in Thread: UCC24630EVM-636 , LM5023 , UCC24630 , UCC24636 , UCC24610 , UCC28740 , UCC28630 We are trying to promote LM5023 + UCC24630 for the adapter. UCC24630EVM-636 is a good demo for us. Is this still the best SR solution for LM5023…
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    • Answered

  • RE: LM5023 Input voltage dropping

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    Hi Kuramochi, The LM5023 do not have input line brownout function, you may need to add external circuit to realize that, please refer to the UCC24630EVM-636 Schematic in http://www.ti.com/lit/ug/sluub81a/sluub81a.pdf . Best Regards Oliver

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