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  • LM5121-Q1: Noise simulation in PSPICE for TI for LM5121-Q1

    Resolved
    Part Number: LM5121-Q1 Other Parts Discussed in Thread: LM5121 Tool/software: I am not able to run noise simulation on LM5121-Q1 circuit in PSPICE for Ti. I have Ac/noise enabled set up , but in plot widow, noise icon never gets active. Any help will…
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  • LM5121-Q1: LM5121 efficiency improvement

    TI Thinks Resolved
    Part Number: LM5121-Q1 We had assemble the board and tested with upto 10A. Initially we got efficiency less than 90%. After the removal of snubber circuit parallel to high side N channel MOSFET, we got efficiency upto 93%. Is there any method such that…
    • Answered

  • LM5121-Q1: will not start switching

    Resolved
    Part Number: LM5121-Q1 Other Parts Discussed in Thread: LM5121 Hi there, I have implemented a 55V 5A boost converter design using the LM5121 (stepping up from ~30-42V battery input voltage). However, the design will not start switching - I only…
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    • Answered

  • LM5121-Q1: Kindly review the Boost Converter schematics

    Resolved
    Part Number: LM5121-Q1 Other Parts Discussed in Thread: LM5121 Hi Ti Team, Kindly review the Boost Converter scheme attached below. Kindly review Critical design Parameters as follows Output Voltage: 24V Output Voltage: 215W Input Nominal…
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  • LM5121-Q1: Alternate wide and narrow duty cycles resulting in higher voltage ripple

    TI Thinks Resolved
    Part Number: LM5121-Q1 Other Parts Discussed in Thread: LM5121 Boost converter Input : 5V Output : 10V@ 6A Switching frequency:450 Khz Output ripple is observed around 400mV.After probing Switch node,Wide and narrow duty cycles observed alternately…

  • LM5121-Q1: LM5121 Boost converter with external gate driver

    TI Thinks Resolved
    Part Number: LM5121-Q1 Other Parts Discussed in Thread: LM5121 , LM5114 Hi, I am planning to use LM5121 for converting input (18V to 50V) to output 55V @ 8A. To reduce the switching FET losses,I have selected GAN FET(GS61008). It needs a gate driver…
    • Answered

  • LM5121-Q1: Inquire about output

    Resolved
    Part Number: LM5121-Q1 Other Parts Discussed in Thread: LM5122 , LM5122-Q1 , , LM5121 Hi TI experts, We have to design according to the specifications below. Vin : 10~16V Vout : 36V Iout : 30A I did use TI's webench. LM5122-Q1_simulation(30A…
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  • LM5121-Q1: Can the location of the disconnect FET be moved before the current sense resistor

    TI Thinks Resolved
    Part Number: LM5121-Q1 Other Parts Discussed in Thread: LM5121 , LM2766 I would like to use the disconnect FET as an inrush limiter to the input capacitor. That means that the FET would be before the input cap and the Vin/SCP connections. Will this work…

  • LM5121-Q1: Is it Possible to Use IC without Inrush Current Limit and Disconnection Switch Functions ?

    Part Number: LM5121-Q1 Other Parts Discussed in Thread: LM5121 Hello Team, My question is, in the "simplified application diagram" that is mentioned in the datasheet, what would happen, if i could choose not to use the MOSFET in input side (which…
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  • WEBENCH® Tools/LM5121-Q1: lm5121 max output current

    Resolved
    Part Number: LM5121-Q1 Other Parts Discussed in Thread: LM5122-Q1 , LM5121 , LM5122 Tool/software: WEBENCH® Design Tools I don't find max output current or max power dissipation of lm5121-q1 in the datasheet, but when I use webench tool, I set the output…
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