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TLC5926/TLC5927 pretection

Knighty Nimp
Expert 1260 points
Other Parts Discussed in Thread: TLC5927, TLC5926

Hello Al,

Can anyone explan the difference between Short to GND detection and Short to Vled detection of TLC592X? we are going tochoose TLC5926 or TLC5927 an would like to know the differnce of the protetion.

 

Thanks

 

NT

  • 0
    TI__Guru 66350 points

    Hello Knighty,

    The short to GND detection and open detection is using the same flag and the same detection method. The part detects an open or short to GND error, if the current through the transistor is below the threshold target, which is typically below 1/2 the set current.

    Short to VLED detection means that there is a short over the LED to the positive voltage which is detected if the voltage on the OUT pins stay above 2.4V respectively 2.2V.

    Best regards,
    Brigitte