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  • LMP8640: LMP8640QMKX-T/NOPB

    Resolved
    Part Number: LMP8640 Other Parts Discussed in Thread: TMP103 Refer to TMP103 case, for LMP8640QMKX-T/NOPB An old National semiconductor, multiple reels with same TKY ID/Package ID , is it normal ?
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  • LMP8640: Does LMP8640 can support Vs+=6V, Vs-=-6V application?

    Resolved
    Part Number: LMP8640 Other Parts Discussed in Thread: INA281 Hi Team, I found the pin name the LMP8640 Vs- is negative voltage pin. Does it can support apply +/-6V voltage on Vs+/Vs-? Thanks. B.R. Lucas
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    • Answered

  • LMP8640: RSS error vs. Common-mode voltage

    Resolved
    Part Number: LMP8640 Hi Team, I am trying to use a wonderful RSS error calculator tool on the LMP8640 page, and it gives me hundreds to thousands percent errors that are definitely wrong. The RSS error percentage starts climbing dramatically as common…
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  • LMP8640: IN+/IN- voltage when power up

    TI Thinks Resolved
    Part Number: LMP8640 Other Parts Discussed in Thread: INA281 hi team, as my customer use LMP8640 to sense the NVDIMM P12V power, they find, when the LMP8640 is powered up by a +5V/0V, their is a about 1.375V volts on the IN+/IN- pin, when the Vbus is…

  • LMP8640-Q1: LMP8640 behavior when load short circuit

    TI Thinks Resolved
    Part Number: LMP8640-Q1 Other Parts Discussed in Thread: LMP8640 Hi Team, I want to ask two questions and hope can get your help. 1. As shown in the figure, when MLCC capacitor on the Load terminal is short-circuited to ground due to the crack. Besides…

  • LMP8640: Output behaviour when Rload < Rsense

    Part Number: LMP8640 Other Parts Discussed in Thread: INA293 , INA281 Using Spice model found on the forums, the output decreases as the load is decreasing around and below Rsense. Hereafter is the simulation schematic and a plot at Rload=Rsense: The…

  • LMP8640: DDR Nvdimm

    TI Thinks Resolved
    Part Number: LMP8640 Other Parts Discussed in Thread: INA199 , Hi Please suggest products suitable for DDR Nvdimm Which of these two is suitable for LMP8640 & INA199 common mode :12V Rsense: 2m ohm Iout: 4.2A ADC: input 0~3v

  • LMP8640: LMP8640MKE-HNOPB

    TI Thinks Resolved
    Part Number: LMP8640 Hi, We purchased this part and encounter some issues. Please see the attachment for the detailed problem and provide the feedback and solution. PowerBoard_VD단잔류전압확인.pptx

  • LMP8640: The output waveform of the LMP8640

    TI Thinks Resolved
    Part Number: LMP8640 Other Parts Discussed in Thread: INA240 , INA293 I use the amplifer LMP8640 to sence the inductor current in the Buck converter, I chose the gain as 20, and sense resister 5m. Buck converter : input voltage: 12V; output voltage: 3…
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  • LMP8640: What is the minimum current sensing?

    Resolved
    Part Number: LMP8640 Other Parts Discussed in Thread: INA293 , INA190 , INA186 Hi ! What is the minimum current sensing in the attached circuit? Can you detect a current of 1[mA]? Thanks for the answer.
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