• LTC4110 - strange AC_PRESENT and RES_COLD/RES_0R behavior

    Hello,

    I have a design with LTC4110 configured to work with SLA. And as working with SLA, I followed the datasheet values for Rtha=7.32k and Rthb= 0R. On my design my choice was to do not use thermistor, so there is a 10k resistor to ground between Rtha…

  • LTC4110 Question

    From the data sheet, it says that you can use two LTC4110's each with a 4.2V Li- Ion battery, or one LTC4110 with 2s 4.2V Li-Ion to achieve a higher voltage (8.4V). Is one option better than the other? Any guidance appreciated. 

  • LTC4110 - RES_COLD/RES_OR issue.

    Hello,

    I am using the LTC4110 in my design. When I turn-on the equipment with just the battery I see that the bits RES_COLD and RES_OR are asserted and the Battery_Present bit is not. When I connect the power supply I see the bits Battery_Present and…

  • LTC4110 - Minimum charge current.

    Hello,

    I am using the LTC4110 in my design. Is there any limitation to the charge current? Is there a mininum value to operate it? My battery capacity is about 13000mAh, but I would like to charge it with just 300mA, a very slow charging. Is there any…

  • LTC4110 - Rsns(fet) formula.

    Hello,

    I am using the LTC4110 in my design. To solve the Rsns(fet) formula I need to know the value of Ipri(chg), but there are some variables in the Ipri(chg) formula that I do not know.

    The Ipri(chg) formula is:

    What the variables N - f and Lpri means…

  • cold start battery LTC4110

    We use Lead Acid batteries for backup power supply.
    1. Is it possible to cold start with a fully charged battery without external power supply?
    2. Are there any recommendations for connecting two batteries according to the scheme

    Thanks in advance,

  • LTC4110 - CHARGING BATTERIES OVER 12 HOURS

    Hello,

    In my project the charge time cycle exceeds the 12 hour time limit. There is a solution for my case indicated in the datasheet that is to clear the CHG_FLT bit.

    "In situations where required bulk charge time cycle will exceed the 12 hour time limit…

  • RE: Battery charging and backup

    Here is a list of parts to consider.  All will accept a 12V input and charge 2S Li-ion battery.  All are controllers for switchmode battery charger applications.

    LTC4002-8.4

    LTC4015 - includes I2C telemetry, ideal-diode-based power path

    LTC4020 - includes…

  • Looking for an IC for hotswap application

    Have a device powered by at 11.1v 3 series lithium battery pack, that runs at around 20W. Looking for an IC to implement a hotswap solution to provide about 10-15secs power so the device does not shut down when swapping out the battery.

    As space is limited…

  • TAGS LIST: Power Management

    LTM8045
    LTM8049
    LTM4651
    LTM4661
    LTM4686
    LTM4676
    LTM4686-1
    LTM4676A
    LTM4675
    LTM4677
    LTM4678
    LTM8062
    LTM8061
    LTM8052
    LTM8026
    LTM8056
    LTM8064
    LTM8054
    LTM8055
    LTM4600
    LTM4600HV
    LTM4608A
    LTM4604A
    LTM8032