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Original question:

TPS2546: Load detection - Power wake: set/reset time

TPS2546: Why dose STATUS pin not correctly response about load detect

Eddie Yeh
Prodigy 360 points
Part Number: TPS2546

Hi all

There are two quesstions:

1. What 's different between first and second row?

2. Why dose STATUS pin not correctly response for when Iout is over the threshold and setting is 0011?

There are two waveforms. According to the current spike,  both surpasses the threshold but only one of both triggers the STATUS pin

  • 0
    TI__Mastermind 30000 points

    Hello,

    Your waveforms are difficult to see, but in general, sink current must be above the threshold for a set period of time in order for the TPS2546 to indicate that a load has been attached. So the current spike may not have a long enough pulse for the TPS2546 to detect.