SLVK227 October   2025 TPS7H4012-SP , TPS7H4013-SP

 

  1.   1
  2.   TPS7H4012-SP and TPS7H4013-SP Single-Event Effects (SEE)
  3.   Trademarks
  4. 1 Introduction
  5. 2 Single-Event Effects (SEE)
  6. 3 Device and Test Board Information
  7. 4 Irradiation Facility and Setup
  8. 5 Depth, Range, and LETEFF Calculation
  9. 6 Test Setup and Procedures
  10. 7 Destructive Single-Event Effects (DSEE)
    1. 7.1 Single-Event Latch-up (SEL) Results
    2. 7.2 Single-Event Burnout (SEB) and Single-Event Gate Rupture (SEGR) Results
  11. 8 Single-Event Transients (SET)
  12. 9 Event Rate Calculations
  13. 10Summary
  14.   A References

9 Event Rate Calculations

Event rates were calculated for LEO (ISS) and GEO environments by combining CREME96 orbital integral flux estimations and simplified SEE cross-sections according to methods described in Heavy Ion Orbital Environment Single-Event Effects Estimations. Assume a minimum shielding configuration of 100mils (2.54mm) of aluminum, and worst-week solar activity (this is similar to a 99% upper bound for the environment). Using the 95% upper-bounds for SEL, SEB/SEGR, and SET the event rate calculations for SEL, SEB/SEGR, and SET are shown on Table 9-1,Table 9-2, and Table 9-2, respectively. Note that this number is for reference since no SEL, SEB/SEGR, or VIN=12V SET events were observed.

Table 9-1 SEL Event Rate Calculations for Worst-Week LEO and GEO Orbits
Orbit TypeOnset LETEFF (MeV-cm2/mg)CREME96 Integral FLUX (/day/cm2)σSAT (cm2)Event Rate (/day)Event Rate (FIT)MTBE (Years)
LEO (ISS)756.26 × 10–54.61 × 10-82.89 × 10–121.20 × 10–49.49 × 108
GEO1.77 × 10–48.15 × 10–123.40 × 10–43.36 × 108
Table 9-2 SEB/SEGR Event Rate Calculations for Worst-Week LEO and GEO Orbits
Orbit TypeOnset LETEFF (MeV-cm2/mg)CREME96 Integral FLUX (/day/cm2)σSAT (cm2)Event Rate (/day)Event Rate (FIT)MTBE (Years)
LEO (ISS)756.26 × 10–52.31 × 10-81.44 × 10–126.01 × 10–51.90 × 109
GEO1.77 × 10–44.08 × 10–121.70 × 10–46.72 × 108
Table 9-3 VIN=12V SET Event Rate Calculations for Worst-Week LEO and GEO Orbits
Orbit TypeOnset LETEFF (MeV-cm2/mg)CREME96 Integral FLUX (/day/cm2)σSAT (cm2)Event Rate (/day)Event Rate (FIT)MTBE (Years)
LEO (ISS)756.26 × 10-54.61 × 10–82.89 × 10–121.20 × 10-49.49 × 108
GEO1.77 × 10-48.15 × 10–123.40 × 10-43.36 × 108