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  • tps23757 for DCM flyback??

    Other Parts Discussed in Thread: TPS23757 Hi I used DCM flyback transformer for tps23757 i certainly know the primary current is triangle my problem is on time nearly no change under full load or no load. can tps23757 use for DCM flyback?…

  • TPS23757-EVM question

    Other Parts Discussed in Thread: TPS23757EVM , TPS23753 I need slightly higher voltage on the output of the TPS23757EVM, 5.2V instead of 5V. Is there any way to do it, without changing the whole design?

  • TPS23757-EVM minimum input voltage

    Other Parts Discussed in Thread: TPS23757 , TPS23756EVM , TPS23753 , TPS23757EVM , TPS23756 The datasheet of the TPS23757 says that I can use 12V adapter to power it. But the evaluation board can be powered by 24V (at least) .Probably some of the jumpers…

  • TPS23757EVM: Vref is not 1.25V or Output voltage is not 5V

    TI Thinks Resolved
    Part Number: TPS23757EVM Other Parts Discussed in Thread: TPS23757 , TL431 Hi Bro, Recently we designed in TPS23757 into our application. But now the IC TPS23757 creats much heat and output voltage is 5.6V. Even we adjust resistor R32 and R34 value…
    • Answered

  • TPS23757EVM: Diode SPEC

    Resolved
    Part Number: TPS23757EVM Other Parts Discussed in Thread: TPS23757 , TPS23758 , TIDA-00617 , Hi E2E, We use TPS23757 EVM to design. Could you let me know what key SPEC of diode?
    • Resolved
    • Answered

  • RE: Highest efficiency possible with non-custom transformers for POE isolated power converter.

    Resolved
    Hi Brett. Thank you for answer! I already started calculations for a design with TPS23757 .
    • Answered

  • RE: TPS23753A: Secondary-side rectifier diode

    Resolved
    Hi Michael, Thanks for your quick reply. The design is for a 802.3af Type 1 design (so approx. 13W). The TPS23757 looks interesting thanks. The project I'm considering this for is a reasonably space constrained (mostly in height) and so I'm slightly…

  • PMP4745: Drive Current

    TI Thinks Resolved
    Part Number: PMP4745 Hi E2E, Our customer refer PMP4745 to design TPS23757. But the MOS which customer use that had higher Qg lead to VGS can't pull low at the moment. (Please refer the waveform) (Customer MOS's Qg=42nC, PMP4745 MOS's Qg=17nC) …
    • Answered

  • RE: TPS23753A: High Efficiency Reference Design for 5V 3A

    Resolved
    Hi Michael, Unfortunately, we have yet to use this synch gate controller in our TI designs or EVMs for PoE. I've seen it used mostly in offline applications at greater than 30W converters and not yet for 13W. It may be difficult to modify an PoE EVM…

  • RE: TPS23755: What is highest switching frequency?

    Hi Tom, Thank you. The reason for using TPS23757 is only because of TPS23755 is not ready. But I found you have good amount of engineering samples in stock. Since TPS23755 has integrated transistor, I will use TPS23755. Please send me a reference design…

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