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  • TPS92641EVM: TPS92641 HG/LG abnormal

    TI Thinks Resolved
    Part Number: TPS92641EVM Hi, Customer follow PMP8016 EVM board(PMP8016 circuit) to layout as attached file. And output abnormal seems into IC protection mode as below: Only circuit change in C28 from 1uF to 2.2uF due to charge voltage to gain to higher…

  • RE: TPS92641: Ultra Fast and High-Current LED Driver

    Hi Steven, thanks for your answer. Unfortunately, the TPS92641EVM seems to limit testing opportunities. The input voltage has to be above 43V and LED current is limited to 1A. Is it possible to run two TPS92641EVM synchronously to achieve 2A? Using 24V…

  • RE: TPS92641: Driver's Dimming Range 0.1%-100%

    Hello Steven, Are TPS922055DMTREVM, TPS92641EVM schematics okay for 0.1%-100% dimmable range ? Regards
    • Answered

  • TPS92641EVM: Tricky PCB lay-out between inductor and power output.

    Resolved
    Part Number: TPS92641EVM I found the long slit at LED+ output of TPS92641EVM. I want to know what the slit is for? (page 10, User's Guide for the TPS92641EVM, slvu823.pdf)
    • Resolved

  • TPS92641EVM: Current Behavior

    TI Thinks Resolved
    Part Number: TPS92641EVM Hi, My customer is evaluating this EVM and has the following question (waveforms are attached): We used a 30khz pwm signal for dimming and labeled what the duty cycle was set at for each waveform. I'm sending the waveforms again…

  • TPS92641: TPS92641 Schematic review & UDIM

    Part Number: TPS92641 Other Parts Discussed in Thread: , TPS92640 Hi, I am trying operate LEDS through TPS92641EVM with below spec Vin= 52V Iin = 7A VLed = 49V ILed = 6A Ripple Current: 200mA How to calculate the UDim frequency range for the operation…
    • Answered

  • TPS92641EVM EXTEND VIN RANGE

    Resolved
    Other Parts Discussed in Thread: TPS92641EVM , TPS92641 Hi e2e, We have a customer that is usig the TPS92641EVM. They want to extend the input operating voltage of this EVM from 43V - 53V to 43V - 85V and want to know which components to change and what…
    • Resolved
    • Answered

  • TPS92640: VREF pin 5 is still 0V.

    Resolved
    Part Number: TPS92640 Other Parts Discussed in Thread: TPS92641EVM , Hi I made an LED circuit with a power supply of 48V using the above model number, but the VREF pin 5 is still 0V , and it does not normally output 3V and does not work properly. Also, it…
    • Resolved

  • RE: TPS92641: TPS92641 abnormal burn

    Hi Sir, When the MOSFETs are not welded, the HG will keep high since there is a boot cap charge path that will charge this. Have you tried with high power MOSFETs? or you can try with our TPS92641EVM. BR Sean
    • Answered

  • TPS92641: Bootstrap diode

    Resolved
    Part Number: TPS92641 Hi team, I have a question about the bootstrap diode. I believe that voltage rating of the bootstrap diode requires more than Vcc(9.14V max) of TPS92641. However, the TPS92641EVM employs 100V/1A Schottky diode. Does the bootstrap diode…
    • Resolved

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