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LP5562: R,G,B,W Port Spec

CHO SR
Genius 3415 points
Part Number: LP5562

Hi,

We are trying to control a number of LEDs by adding an external FET.

Is the R, G, B, and W ports of LP5562 Open Drain?

I want to check if I should use Pull Up Resistor.

  • +1
    TI__Mastermind 20155 points

    Hi,

    Since the output of LP5562 is current sink, I think you can refer the below figure to add an external FET.

    For example, the SCAN_4 is connected to OUT0, the SCAN_4_HIGH is connected to the anode of LED and the cathode of LED is connected to OUT1. So, if you want to light up this LED, you can turn of the current sink of OUT0&OUT1.

    BR, Jared