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LP8860-Q1 / Minimum absolute current value of Switch point from PWM dimming to Current dimming

Kuramochi Tadahiko
Guru 28715 points

Hi,

Is there the minimum absolute current value of switch point from PWM dimming to current dimming?

Is this calculateded by min output PWM pulse width(=200nsec) ?

I'm understanding that min setting ratio is 12.5%.

Best Regards,

Kuramochi

  • 0
    TI__Expert 4565 points

    Hi Kuramochi-san,

    There is no min current value at switch point of hybrid dimming and it's not decided by min PWM pulse width.

    It depends on switch point, slope, current scale.

    Please refer to this example on datasheet.

    Hope this helps,