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  • LP8867C-Q1: Output Capacitances

    Part Number: LP8867C-Q1 Tool/software: In our current design, we are using the recommended output capacitances of 2 × 10 µF, 50-V ceramic + 33 µF, 50-V electrolytic. New design parameters came in and we are forced to use a 39uF cap @ 25V. The LED voltage…

  • RE: LP8867C-Q1: Rush current and related problem confirmation

    Hi Alan, Alan Xia said: Q1: 8867 No comp, customer can't adjust response rate, how is the rush of our EVM? We have a similar inductor waveform during startup. The current reaches the current limit. And it's true that we don't have much flexibility…

  • LP8867C-Q1: High frequency buzzing sound coming from the boost section.

    TI Thinks Resolved
    Part Number: LP8867C-Q1 Tool/software: In the our system we are using this IC as a boost converter for the Display section to step up from 12V to 34 V. It was observed that once the display backlight is on there is a very high frequency buzzing sound…

  • LP8867C-Q1: If LP8867C-Q1 has the OCP function

    Part Number: LP8867C-Q1 Hi team, Does we have OCP function in LP8867C-Q1? In the block diagram, we can see this function but in the description we didn't see anything about this function. If have, which register can be used to check whether there occurs…
    • Answered

  • LP8867C-Q1: maximum current consumed on the VDDIO/EN pin

    Resolved
    Part Number: LP8867C-Q1 Tool/software: Hi, What is the maximum current consumed on the VDDIO/EN pin? I see that this pin is shared by VDDIO and EN, and I would like to confirm if the MCU's IO port can drive it. Thanks.
    • Resolved
    • Answered

  • LP8867C-Q1: LP8867C-Q1 calculator excel tool

    Resolved
    Part Number: LP8867C-Q1 Hi, Support Team Could share LP8867C-Q1 calculator excel tool? if any, Please advise me. Thanks, Best regards, Lawrence
    • Resolved

  • LP8867C-Q1: LP8867C-Q1 setting FSK khz

    Part Number: LP8867C-Q1 Hi, Support Team i use calculator tool: R FSET Actual:169kohm; fsw Actual:369.8kHz R FSET Actual 169.00 kohm fsw Actual 369.8 kHz but i saw datasheet FSW=67600/(169+6.4)=385kHz is calculator…

  • LP8867C-Q1: How to calculate Ploss on LP8867C-Q1 chip

    TI Thinks Resolved
    Part Number: LP8867C-Q1 HI： Using LP8867C-Q1 to drive 11 series and 4 parallel LED strings, each string is 80mA/35V. How to calculate PLOSS on LP8867C-Q1? Because we need to know PLOSS to calculate Tj. Thanks
    • Answered

  • LP8867C-Q1: LP8867C-Q1 Gain Margin Gap

    Resolved
    Part Number: LP8867C-Q1 Hi, Support Team We use calculator tool, what is mean Gain Margin Gap? i didnt see datasheet about this infomation. Gain Margin Gap #DIV/0! dB If gap > 3dB, external compensation is needed If gap < 3dB, external…
    • Resolved
    • Answered

  • LP8867C-Q1: Difference between LP8867C-Q1 and LP8867-Q1

    Resolved
    Part Number: LP8867C-Q1 Other Parts Discussed in Thread: LP8867-Q1 Hi team, Do you have comparison table between LP8867-Q1 and LP8867C-Q1 in aspect of pin location, pin function, electrical characteristics, and internal chip, wire bonding differences…
    • Resolved

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