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  • RE: LM3478: Mosfet getting heated

    Hi Sai, As long as the saturation current of the inductor is higher than your input current, this inductor should be fine. BR, Haroon

  • LM3478: Inquiry about POS Boost using LM3478 and 24V I/O board - Potential Issue and Possible Adjustments

    Part Number: LM3478 Hi Team, The POS boost uses the LM3478 in conjunction with the customer-supplied I/O board (24V). An abnormal sound is produced at 0A, which is currently believed to be caused by not entering CCM. During customer recent experiments…
    • Answered

  • LM3478: Difference between LM3478 and LM3488

    Resolved
    Part Number: LM3478 Other Parts Discussed in Thread: LM3488 , LM5155 , LM5156 Hello, Can I please get the difference between LM3478 and LM3488? Also I am planning to use such controller as low side buck as shown in below pic. Are there any newer ones apart…
    • Resolved

  • LM3478: LM3478 application questions

    Part Number: LM3478 Hi expert, When the customer uses the LM3478, the FA pin is pulled up to 12V through a resistor, but the LM3478 can still work normally. Is this application feasible? What risks will exist? thanks.
    • Answered

  • LM3478: Can an external driver be added?

    Resolved
    Part Number: LM3478 In the datasheet of the LM3478 I have read that the gate of the mosfet must be connected to the DR pin. But my question is if an external driver could be added, which would receive the PWM signal from the DR pin, in order to have a…
    • Resolved

  • LM3478: Voltage of FB pin beyond the limit of datasheet

    TI Thinks Resolved
    Part Number: LM3478 Hi e2e: We have tested the voltage of FB pin. The peak value is -0.57V, less than -0.4V limited in the datsheet. And the over voltage time lasted for 3ms. Could you please help to judge the risk? Which part of the device might be damaged…

  • LM3478: Boost Convertor Not working

    Part Number: LM3478 I have designed a boost DC-DC convertor circuit using LM3478. The input voltage is 12V,13A (via AC-DC Power Supply) and the output voltage 24V,5A. Circuit has been worked fine for few days and suddenly the convertor is not working…

  • LM3478: Web bench refuses

    Part Number: LM3478 Other Parts Discussed in Thread: LM5022 , , POWERSTAGE-DESIGNER I asked Webbench for a SEPIC converter using the LM5022 or LM3478 20V-60V input 48V @ 1A output, and it says it can't, but it doesn't say WHY it can't. I would…
    • Answered

  • RE: LM3478: LM3478 3V to 40V Boost Converter

    Resolved
    Hello Daniel, I have not seen an update from you for the last 25 days, so I assume the questions are answered and the issue is solved. I close this thread now. If there is still something open, please reply and the thread will get opened again. If you have…
    • Answered

  • LM3478: Operation of current sense

    Resolved
    Part Number: LM3478 Other Parts Discussed in Thread: LM5155 , LM5158 There are few points I couldn't understand about current sense functionality in LM3478. The option to set current limit by choosing Rsn works like if voltage across Rsn (which is…
    • Resolved

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