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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? …
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  • UCC2808A-1: Secondary-side synchronous rectification controller

    Resolved
    Part Number: UCC2808A-1 Other Parts Discussed in Thread: UCC24610 , UCC24630 , UCC24624 , UCC24612 , UCC24610EVM-563 , UCC24636 , UCC24630EVM-636 , UCC38083 Hello, I am considering a push-pull circuit using the UCC2808A with the following specifications…
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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…
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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…
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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…
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  • RE: UCC24630: Can I check if this IC gives the drive outputs without running it in a flyback circuit?

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    I totally copied the snubber values from TI UCC24630EVM application note. The input and output values are very similar to those in my circuit. https://www.ti.com/lit/ug/sluub81b/sluub81b.pdf?ts=1625561117575&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct…
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  • RE: UCC28740: Device not starting, Gives one pulse per second

    Resolved
    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
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  • What is the best Synchronous Rectifier controller for Quasi-resonant control like LM5023? LM5023 switching frequency on EVM?

    Resolved
    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…
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  • RE: UCC28180: UCC28180 Brown out issue

    hyster.pdf Hi Kuo, Please take a look how hysteresis was implemented with the LM8364 on the attached document. This can be used to pull VSENSE low on the UCC28180 and shut off the PWM. Regards John

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