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  • TI Thinks Resolved

LP5024: Power supply voltage (Vled) setting

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Replies: 2

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Part Number: LP5024

Dear TI Team

The LP5024 data sheet introduces a form in which a voltage is applied to each OUT terminal from a single Vled.
However, customers are considering a method of driving one LP5024 by changing the number of LEDs to be connected for each out terminal.

For example, is it possible to apply different values of power supply voltage (Vled) for LED lighting to each OUT terminal as shown below?
(Turn on multiple voltage LED drive power to one LED driver)
Example
OUT1: One LED alone ← 5V input (Vled)
OUT2: 2 LEDs in series ← 7.5V input (Vled)
OUT3: 3 LEDs in series ← 12V input (Vled)

Best Regards,

Y.Ottey

  • Dear TI Team

    I have received a request from our customers to respond quickly.
    Therefore, I would appreciate it if you could reply as soon as possible.

    Regards,

    Y.Ottey

  • In reply to Y.Ottey:

    Hi Y.Ottey,

    sorry for late replay.

    Please take care of the page 6 of the datasheet. The voltage on OUTx is range from -0.3V to 6V. When the LED happens circuit-shorted, it will damage the LED deivers. you'd better not series LEDs in one channel.

    Best Regards

    Monet Xu

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