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  • LP8556: The frequency corresponding to other RFSET value

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    Part Number: LP8556 Tool/software: Hi team, My customer wants to set a frequency of around 400k, but there is no corresponding resistance value. Could you please give the specific frequencies corresponding to 56kΩ and 68k Ω resistors? Thank…
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  • LP8556: LP8556SQ-E08/NOPB schematics

    Resolved
    Part Number: LP8556 Tool/software: Hi team We would like to use LP8556SQ-E08/NOPB for pure hardware test, no software engagement. 1. LP8556SQ-E08/NOPB is "PWM Only" without I2C master, could we directly pull pwm pin to high (VDD power domain), as 100% duty…
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  • RE: LP8556: Confirmation on dimming ratio possible

    Hi Cameron, The PWM itself has 12-bit with up to 3-bit dither. And register 0xA1 can also set the DC current, which can provide additional 3-bit. So theoretically customer can set the DC current as 5mA, and then use the PWM to adjust the brightness to…
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  • RE: LP8556: Test mode

    Resolved
    Hi Partick, Yes, so they suspect there have some test mode in LP8556 may passthough high voltage to LDO and caused damaged. Is it possible? I will asking for the layout file to you later. thanks! Jeff

  • LP8556: LED driver with PWM control

    Part Number: LP8556 Tool/software: Hi Team, I am looking for a LED backlight driver that has similar specs to: lp8556, however do we have something newer? Also it must be controlled by a PWM signal. Thank you. Kind regards, Wouter Kragt

  • LP8556: Lower output voltage application

    Part Number: LP8556 Tool/software: Hello TI, I am trying to power a TFT screen backlight. The LEDs for the backlight are connected in parallel, requiring a forward voltage of 3.3V and a total current of 1.2A. Is it possible to lower the LP8556 output…
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  • LP8556: WQFN EXPOSED PAD CONNEXION --- LP8556SQ

    Resolved
    Part Number: LP8556 Hello, There is an exposed thermal pad on the WDFN package of the LP8556SQ-E09/NOPB chip. Should-it be connected to GND or should be left unconnected? Regards. Sylvain
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  • LP8556: Could the each Iled up to 100mA per CH ?

    Part Number: LP8556 the formula : (CURRENT/4095) × IMAX × 20,000 × 1.2 V / RISET But the RISET could be 12k to 100k When the RISET is 24k , the max current/CH is 50mA When the RISET is 14k , Is the max current/CH up to 100mA ?? or up…

  • LP8556: BGA package

    Part Number: LP8556 Hi team， I just need check the BGA package data. Do you know t he size of the part pointed by the red arrow in the figure below is the value of the BGA electrode diameter "D"? Thanks Lillian

  • LP8556: LP8556 to integrate multi-channel control

    Part Number: LP8556 Hi Sir The new project requires the use of RGB LEDs in a common anode configuration to control the brightness requirement (without color mixing functionality). Is it possible to use the LP8556 to integrate multi-channel control for…

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