• RE: MPPT Battery Charger <5V LT3959 and LTC4000(-1?)

    Hello, The LTC4000-1 should be used for MPPT applications. I am not familiar with the LT3989. It looks like that should work OK but the simulation with these to parts using LTSpice and evaluation using the demo boards but help determine if this will work…

  • LTC4000-1 for a solar charger which supplies power even when battery is not connected


    I’m trying to design a solar panel charger circuit! There will be 6V, 12V or 12V one solar panel and I need to charge the lithium battery 3.7V. A tricky bit is that when 6V solar panel is used, it needs to charge the battery and the battery will…

  • How can I connect the LTC4000-1 and LT8390A as a 10-Amp MPPT charger for a lead-acid battery ?

    I tried to connect it in LTspice, but it doesn't work.

    The other combo : LTC4000-1 and LT3789 simulates well.

    What's the problem here ?

  • LTC4000



    I am planning to design using the LTC4000
    I'm thinking about connecting with the LTC3703, but are there any problems

    Regarding DCDC's request
    VIN: 5-60 V
    VOUT: 45 to 60 (maximum power: 200 W)
    * In regard to the system, regardless of step-up …

  • LTC4000 & LTC3786


    I am using a LTC4000 and a LT3786 to boost from 14-24V to 25.2V. And to charge my battery at 25.2V.

    The boost circuit does not work, as the output follows the input. The battery charges, but the maximum voltage it charges to is the input voltage,…

  • About LTC4000

    Hi Analog Team,

    We are designing a back-up system to a BDC motor servodrive.
    There is a Li-Po battery pack (7s1p) to be charged to 24V. The question is: could the LTC4000 used without a DC/DC supply ? (Becase there is a LM5175 buc-boost, which provide…


    Hi, my name is Juan

    Im using the LTC3789 with the LTC4000. I simulate the circuit on the LTSpice but it doesn´t work when I connect the ITH of the LTC3789 with the ITH pin of the LTC4000. If i dont connect one with the other averything Works well till…

  • LTC4000 and DC/DC


    I plan to use LTC3703 with LTC4000.(Back converter)

    Condition is similar to below URL.  


    I have question  for ITH connection.

    ①LTC3703 have COMP pin for compensation.

     And DC/DC is required…

  • LTC4000 and DC/DC sequence


    In LTC4000 + LTC3703 start up and reset condition

    I think below sequence is good.

    Power supply:LTC4000  > LTC3703 

    EN:LTC3703 RUN_EN > LTC4000 ENC_EN

    Because Battery have supply path in LTC4000 disable.(Bgate's Pch is on.)


    Are these  consideration…

  • LTC3890 & LTC4000 ITH pin connection

    Hey all,

    It's my first question on this platform and I hope somebody can help me with my problem. I have connected the LTC3890 with the LTC4000 to charge 4 Li-ion batteries. Before connecting the ITH pin both boards worked good. The ITH on the LTC3890…