SLVA934A November 2017 – May 2020 TPS2660
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.