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  • RE: LM3488: does not start up at the necessary voltage

    Hello Stefan, Thank you for your reply! Thanks for the link to PMP20183. Indeed, the output voltage of 200V is significantly higher than 48V we are looking at. That in part comes at a cost of increased number of components, which is a bit of an issue…

  • RE: LM5156EVM-BST: 200Vdc Biasing Output Voltage

    Hi Darren, Thank you for reaching out but the LM5156EVM alone does not seem to be a good start point. You may refer to the following ref designs and "transplant" the power circuit to the LM5156. You need to change the current sense resistor because…

  • RE: LM3488: output voltage of 300v

    Hi Zhonghui, I advise to take a look at the following reference designs and see if they can help. https://www.ti.com/tool/PMP10077 - This reference design uses LM3478EVM, but the base level design should be the same. You will need to change the feedback…

  • RE: PMP8621: 5V input in PMP8621

    Hello Gary, Thanks for reaching out. The TPS40210 has a minimum Vin of 4.5V, therefore it is fine to use the PMP8621 reference design, you might want to leave the EN/DIS pin unconnected. Just in case, you can also have a look at this other reference design…

  • RE: WEBENCH® Tools/LM5002: LM5002

    Hello Mario, We do not have an IC that supports this input and output voltage range directly. I think the best solution is to use a converter to generate a lower voltage and then increase the voltage with charge pumps, similar to PMP20183. Please give…

  • RE: LM3478: lm3478

    Hi Hubert, Unfortunately, I cannot find a reference design with the LM3478 that meets your exact specifications. However, I've attached is a LM3478 reference design that generates 200V @ 0.01A http://www.ti.com/lit/df/tidre38/tidre38.pdf?ts=159051…

  • Application for 5V boost to 75V,25mA/200V,10mA

    TI Thinks Resolved
    Other Parts Discussed in Thread: LM3478 , LM5122 , LM3481 , PMP20183 Hi TI, Here are two application: -- input: 5V output: 75V/25mA -- input: 5V output: 200V/10mA 1. I have found LM3478 and LM5122, could you help to check if these are good for the request…

  • RE: TPS60241: Overload protection / current limit characteristics

    Hi Mitch, I have run some tests on the EVM and here are my results. I've ran the input at 3.5V and have put it into over current condition using a constant-current setting on an electronic load. The results that I have seen is that in overcurrent conditions…
    • Answered

  • LM3481: 200V boost circuit

    Resolved
    Part Number: LM3481 Other Parts Discussed in Thread: PMP20183 Hi, I am considering the circuit using the LM3481 device. The specification is below. I believe that reference design PMP20183 can be used as it is close to my specifications. However, the minimum…
    • Resolved

  • RE: LM5155-Q1: LM5155-Q1 system calculator

    Hi Lin, Thank you for considering the LM5155. Your inputs are basically okay but there are a few problem: 1. Your min Vin is 11V. Why set the UVLO threshold at 3V? 2. For 210V output, 100mV ripple voltage is a very tough spec. Most designs usually has…

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