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LP8863EVM: The role of resistance

Hirotsugu Kobayashi
Mastermind 9540 points
Part Number: LP8863EVM

Hi, team,

The LED Load Board has a 10 Ω resistor (R1 to R6), what is its purpose?

  • 0
    TI__Expert 5475 points
    Hi,

    There's no specific purpose here. It can be shorted by the jumpers.
    Sometimes users can add resistors with the LEDs to balance the heat when LED numbers of each channel are not equal. But the power rating of the resistors need to be carefully considered. Or, used together with capacitors, the resistors can be used to minimize EOS failure. Details please refer to the application note below.
    www.ti.com/.../snva843.pdf