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TPS27S100: TPS27S100 current limitation problem

Part Number: TPS27S100

Tool/software:

We use your company's TPS27100 chip to test the load capacity with the output connected to the load. When ILIM is connected to the ground, the working environment temperature is 25 degrees Celsius and the load is 3.7A, the chip has the phenomenon that the protection is turned off and on again, and the switch continues.

We would like to ask if there is any further update on this?

  • Hi Lingshuang,

    The auto-retry mode happens when the device turns off due to thermal swing/shutdown until the retry timer is over and then turns back on and checks for the fault condition again. It is explained in more detail in section 7.3.4.4-thermal fault detection (please also refer to figure 30 in the same section) of the TPS27S100 datasheet. 

    Also, are you using an e-load?

    Thanks,

    Rishika Patel