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  • LM3481: OCP

    Part Number: LM3481 Other Parts Discussed in Thread: PMP10352 , , PMP Tool/software: Hi expert, My customer used LM3481 and refer to the PMP10352 circuit for PoE 15W output application. There is no problem to load 15W at output of LM3481 without main board…

  • RE: LM3481: Why output can not recover after OCP cleared?

    Hi Zoe, I received a mail request on this exact issue from your colleague Racheal. The response is summarized here: Please note that the LM3481 has two protections for overcurrent events: - overcurrent protection (160mV threshold) - short-circuit protection…

  • LM3481-Q1: lm3481 abnormal working conditions when outputs 5V drop down but duty cycle keep the same

    Part Number: LM3481-Q1 Other Parts Discussed in Thread: LM3481 Hi team, Below circuit is LM3481 external schematic. Customer feedback when 5Vout put drops down, the duty cycle remains the same. CH1: RESET CH2: Vin CH3: DR CH4:5V out CH1:Vgs CH2：Vr_s…

  • LM3481-Q1: LM3481 Lm calculation check

    Part Number: LM3481-Q1 Hi Team, Based on LM34xx How to Design Flyback Converter with LM3481 Boost Controller (Rev. A) (ti.com.cn) , my calculation of Lm is about 110uH as below. VIN=32V Vout=12V. others are same as below. However, in chapter 4, it says…

  • LM3481: How to control Output Level

    Part Number: LM3481 We want to the following Specifications: Vin = 12V Vout = 24V, 2A V Output Control with PIO pins. The circuit diagram we currently use is as follows. PIO Control L(0V) = Vout 12V PIO Control H(3.3V) = Vout 24V We want the output…

  • LM3481-Q1: Application Report SNVA761A issues

    Part Number: LM3481-Q1 Hi team, This is Chloe, NWC AA2 FAE. There is an issue about small signal model derived. Such as Figure 6, write the KCL equation according to the last sequence of small signal circuits, and compare formula 14 to get the relationship…

  • LM3481: For isolated LED driver application

    Part Number: LM3481 Other Parts Discussed in Thread: LM5155 Hi, Does LM3481 possible to using for below LED design? Seems it can't fix output current? DC-DC LED Constant Current Waterproof Isolated Power Supply 200W Specifications: Input Voltage Range…

  • LM3481: Performance Review

    Part Number: LM3481 Hi team. I've been working on the LM3481 SEPIC converter for a while now and it alwyas keeps on comin up with newer problems. Vin:18V to 30V Vout:24V/1A A coupled inductor design is being used and the DRQ125-220-R is being used as…
    • Answered

  • LM3481: Diode Burnout

    Resolved
    Part Number: LM3481 Hi team So i've been using the LM3481 for a sepic converter for a while and i have had problems with the board (Please refer to the previous thread: https://e2e.ti.com/support/power-management-group/power-management/f/power-management…
    • Resolved

  • LM3481: LM3481 availability

    TI Thinks Resolved
    Part Number: LM3481 the part is not available on digikey/mouser etc. where/how to get the part?

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