SLVA934A November   2017  – May 2020 TPS2660

 

  1.   Fault Handling Using TPS2660 eFuse
    1.     Trademarks
    2. 1 Introduction
    3. 2 Fault Status Monitoring Using TPS2660 eFuse
    4. 3 Fault Status Monitoring During Reverse Input Supply Connection
    5. 4 Suggested Fault Handling Methods
    6. 5 Conclusion
  2.   Revision History

5 Conclusion

In a PLC system, possible system issues with the TPS2660 fault handling during a specific reverse power supply sequence are highlighted, and two methods to overcome—using a current limiting resistor or a blocking diode—are discussed in this application note.

NOTE

The proposed fix either with a blocking diode or with a current limiting resistor is not required for devices with date code value ≥ 2013. It is only required for devices with date code value < 2013.

Date code of the device can be found on packaging label of the device.