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  • LM5143: LM5143 design issue

    Part Number: LM5143 Hi, We use the LM5143 and there are some issue for this design; The input voltage is 48VDC, and output voltage is 30VDC: 1. We set the potentiometer, the highside mosfet will be damaged sometime; 2. We add the load, the the highside…
    • Answered

  • LM5143-Q1: Larger pull high resistor for DEMB pin in LM5143

    Resolved
    Part Number: LM5143-Q1 Other Parts Discussed in Thread: LM5143 Hi Experter, We would like to change pull high resistor for LM5143 DEMB pin from 4.7K ohm to 47K ohm. Could you have any concern for this changed. many thanks. REG_VDDA_1 tie to LM5143 VDDA…
    • Resolved

  • LM5143: The

    TI Thinks Resolved
    Part Number: LM5143 Hi, We use the LM5143 and there are some issue for this design; The input voltage is 48VDC, and output voltage is 30VDC: 1. We set the potentiometer, the highside mosfet will be damaged sometime; 2. We add the load, the the highside…

  • LM5143-Q1: PG threshold Definition

    TI Thinks Resolved
    Part Number: LM5143-Q1 Hi TI expert, May I know the definition of following PGx_xxHYST? It represent the level when UV or OV condition is released? And whether the PGx_OVHYST part is falling instead of rising. Not quite understand the definition. The…

  • LM5143-Q1: Is MOSFET fine for our working

    Part Number: LM5143-Q1 Hi Team, Kindly help here in verifying our circuit. We are using the IC LM5143-Q1 in our design. Specifications of our circuit is the following Vin = 6V to 30V Vout1 = 5V, 9A Vout2 = 3.3V, 9A The MOSFET that are connecting in the…

  • RE: LM5143: found in 15A when the overcurrent protection

    Hello I am closing this thread since I have not heard from you for sometime. If you are still trying to resolve the issue, please feel free to open a new thread. Thanks - EL

  • LM5143-Q1: When EN enable, MOS will damage

    TI Thinks Resolved
    Part Number: LM5143-Q1 hi team, now customer use LM5143-Q1,meet a problem, this case is very urgent. device work condition: VIN =24V, Vout=14.4v, the typ Iout=6A. when customer enable the EN, the mos of Vout2 will breakdown. of course customer test when…
    • Answered

  • LM5143: LM5143A

    Resolved
    Part Number: LM5143 I am looking into using the LM5143 in dual output mode. I plan on having the clock's synced and use frequency dithering. I am concerned about low power efficiency. I would like better understand the efficiency graph, I understand…
    • Resolved

  • LM5143: LM5143 MOSFET design

    TI Thinks Resolved
    Part Number: LM5143 Hi, We use the LM5143 for the buck design, and the input voltages is 48VDC, and output voltage is 20-40VDC, output current is 30A max, Now the MOSFETs will breakdown, and please kindly review below schematic diagram and advise if there…

  • LM5143-Q1: LM5143 driver info

    TI Thinks Resolved
    Part Number: LM5143-Q1 Other Parts Discussed in Thread: LM5143 , LM5143A-Q1 , Hi, I customer need to calculate the power loss, could you help to provide the info as below. Thank you. High-Side VDRIVE Low-Side V DRIVE High-Side Pull-up Resista…

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