SLVAFF0 September   2022 TPS25947 , TPS2597 , TPS25981 , TPS25982 , TPS25985

 

  1.   Abstract
  2.   Trademarks
  3. 1Understanding the FET SOA
  4. 2Ensuring FET SOA in Hot-Swap Design
  5. 3eFuse Ensuring Integrated FET SOA Operation
    1. 3.1 Thermal Shutdown
    2. 3.2 eFuse Response to Events Stressing Integrated FET
  6. 4Plotting eFuse AOA
  7. 5eFuse Application Design Recommendations to Ensure Integrated FET Reliability
  8. 6Summary
  9. 7References

6 Summary

Designs using eFuse do not need to worry about integrated FET SOA unlike in traditional hot swap design. AOA plot of eFuse serves as a visual representation of eFuse protection mechanisms, RDS(ON) and recommended maximum input voltage. AOA or SOA plot for eFuse is not necessarily needed as the robust protection schemes of eFuse take care of integrated FET SOA.