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  • LM25066IA: Won't start vs high current loads

    TI Thinks Resolved
    Part Number: LM25066IA Other Parts Discussed in Thread: LM25066 , PMBUSMGRGUI-SW Hi All , A csutomer at a bringup phase claims the following : "Using the LM25066IA Hot Swap controller that is following an LM5140 20A/12V b uck : Looks like that the…

  • LM25066IA Over Current Fault

    Other Parts Discussed in Thread: LM25066IA , LM25066 , LM25066I Hello, I'm trying to prevent an over current fault condition from switching off the MOSFET using a LM25066IA. I understand the risk of doing this in my design, but I have other protection in…

  • RE: LM25066: different between LM25066APSQ AND LM25066PSQ

    Hi Jimmy, Thanks for reaching out. Please see this FAQ. https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1054711/faq-lm25066-what-are-the-differences-among-lm25066i-lm25066a-lm25066ia-and-lm25066 It can be a…
    • Answered

  • Question for LM25066I and LM25066IA

    Resolved
    Other Parts Discussed in Thread: LM25066I , LM25066IA Hi, Team We have two questions for LM20566i application. Question 1: Due to my customer(USI) used the 2*LM25066I on their system, they need to program the different coefficient to these part. But the…
    • Resolved

  • LM25066IA VDD power source other than VIN

    Other Parts Discussed in Thread: LM25066IA , LM25066 I would like to able to access the LM25066IA via the SMBus before VIN is present. Can I connect VDD to a 3.3V supply which will be available before VIN is up on the device? Or alternatively to VDD of…
    • Answered

  • RE: LM25066A: Compatibility between LM25066 and LM25066A

    Resolved
    Hi Kazuki, All the variants of LM25066 are pin to pin compatible and same from the hardware point of view. The key difference among LM25066I, LM25066A, LM25066IA, and LM25066 is telemetry accuracy. Please refer to the “Telemetry Accuracy” of the “Electrical…
    • Answered

  • RE: LM25066: LM25066 v.s. LM25066I

    Resolved
    Hi Mike, Thanks for reaching out to us. The key difference among LM25066I, LM25066A, LM25066IA, and LM25066 is telemetry accuracy. Please refer to the “Telemetry Accuracy” of “Electrical Characteristics” table in each datasheet for more details.…

  • LM25066I: What is the accuracy of current sense when VIN-SENSE=1mV and 46mV?

    TI Thinks Resolved
    Part Number: LM25066I Other Parts Discussed in Thread: , LM25066 Hi all, Is it possible to get the offset value for LM25066I & LM25066IA respectively? Thanks.

  • RE: LM25066I: What is the accuracy of current sense when VIN-SENSE=1mV and 46mV?

    Hi Chang, We have Telemetry Current Sense Accuracy data for LM25066I at 25mV in Datasheet as shown below, The Accuracy will worsen for 1mV as it will be close to the offset voltage of the Amplifier. If you want a better accurate part, consider using…

  • RE: LM25066I: What is the accuracy of current sense when VIN-SENSE=1mV and 46mV?

    Hi Chris, From your report it is evident that with increase in Current, the measurement accuracy increases and vice-versa. The reason is as mentioned in the datasheet is primarily due to offset voltage of internal amplifier and external noise. So, we…

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