Search tips
Showing 342 results View by: Thread Post Sort by
    Answered

  • LM5117: LM5117EVAL board Vout decreases linearly when Iout increases

    Resolved
    Part Number: LM5117 Hi, I purchased a LM5117EVAL board recently. You can see the schematic from page 10 in this datasheet (chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/ www.ti.com/.../snva466b.pdf Below is the Iout vs Vout plot from 1A to 9A, step…
    • Resolved
    • Answered

  • LM5117: Ho and Lo not switching , Output voltage higher than set value by Rfb2 and Frb1

    Resolved
    Part Number: LM5117 LM5117 is not outputting drive signals to the FETS . Below are the voltage represenatations on the situation and schematic respectively. chip is warm. Pin Voltage VSss 4.4V Vres 0V Vsw 40V Vin 40v …
    • Resolved
    • Answered

  • RE: LM5117: Not outputting signal to the FETS.

    Resolved
    Hello Nasser Please confirm the maximum input voltage. Please connect AGND and PGND at the DAP/EP. Yes, there is a risk. If you can, please consider heat-sink on both sides. -EL
    • Answered

  • LM5117: LM5117QPMHX/NOPB

    Resolved
    Part Number: LM5117 Hi, I need the support on this component LM5117QPMH/NOPB. When i am simulating Power integrity. we are taking the out put current of 14Amps. The IC Pin and Trace are getting highly affected with max current density 315mA/mil2. We tried…
    • Resolved

  • LM5117: Vout drops to 0V when connects to load

    TI Thinks Resolved
    Part Number: LM5117 Other Parts Discussed in Thread: LM5148 , Hi, dear TI team I’m using a digital potential meter as the feedback resistor to control the Vout of LM5117 buck. Vin = 48V. f_sw = 185 kHz. When there is no load, Vout=32V is correct…

  • LM5117: PSpice simulation failed to converge

    TI Thinks Resolved
    Part Number: LM5117 Hi, I'm designing a Input=48V, output=36V, 0.7A buck circuit with LM5117. I got the schematic design from webench. I build the same circuit in PSpice for TI. However, it failed to converge. Auto-converge is enabled. Any idea…
    • Answered

  • LM5117: Benefit of using LM5117 vs traditional method in SNVA829

    Resolved
    Part Number: LM5117 Hi, I'm reading the SNVA829. In the section 4 of this doc, it says the Rsense in series with the output will increase the loss. But when using a Rs to sense the output current, it will also increase the loss, right? As shown in…
    • Resolved

  • RE: LM5117: Output voltage is lower than expected

    Hello I am closing this thread since I have not heard from you for sometime. Please feel free to open a new thread. Thanks - EL
    • Answered

  • LM5117-Q1: SNVA829 Figure 3 FB pin voltage

    Resolved
    Part Number: LM5117-Q1 Other Parts Discussed in Thread: LMV431 , LM5117 I plan to implement a CC/CV regulator very similar to Figure 3 in SNVA829. One thing that I am concerned about is the absolute maximum voltage on the FB pin. From the Figure 3 schematic…
    • Resolved
    • Answered

  • LM5117: The output voltage drops to 1V while connecting to 12A actual electronics load but works ok with 13A resistive load

    Resolved
    Part Number: LM5117 Hi, I developed a DC-DC buck converter using LM5117 for 5.5V at 14A with input 18-36V and it worked fine with resistive load of 13A. The circuit is shown below But when I use the same circuit with a bunch of Electronic cards, their…
    • Resolved

Didn't find what you are looking for? Post a new question.