SLVK146 august   2023 TPS7H2211-SEP

PRODUCTION DATA  

  1.   1
  2.   Single-Event Effects Test Report of the TPS7H2211-SEP eFuse
  3.   Trademarks
  4. 1 Introduction
  5. 2 Single-Event Effects
  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)
    1. 8.1 Single Event Transients
  12. 9 Event Rate Calculations
  13. 10Summary
  14.   A
  15.   B References

7.1 Single-Event Latch-Up (SEL) Results

During SEL characterization, the device was heated using forced hot air, maintaining the DUT temperature at 125°C. The die temperature was monitored prior to radiation using a FLIR IR-camera.

The species used for the SEL testing was Silver (109Ag) ion with an angle-of-incedence of 0° for an LETEFF = 48 MeV·cm2/mg. For more details, see Depth, Range, and LET EFF Calculation. The kinetic energy in the vacuum is 1.634 GeV (15-MeV/amu line). Flux of approximately 105 ions/cm2·s and a fluence of approximately 107 ions/cm2 were used for the three runs. Run duration to achieve this fluence was approximately 2 minutes (per 1 × 107 ions·cm2). The three devices were powered up and exposed to the heavy-ions using the maximum recommended voltage of 14 V and maximum load of 3.5 A. No SEL events were observed during all three runs, indicating that the TPS7H2211-SP is SEL-free. Table 8-3 shows the SEL test conditions and results. Figure 7-2 shows a typical plot of current versus time for an SEL testing.

Table 7-1 Summary of TPS7H2211-SEP SEL Test Condition and Results

For all runs, the device was loaded with a ≈ 3.5 amps load.

Run NumberUnit NumberIonLETEFF (MeV·cm2/mg)Flux (ions·cm2/s)Fluence (ions·cm2)VIN (V)
11109Ag481.05 × 1051.00 × 10714
22109Ag481.00 × 1051.00 × 10714
33109Ag487.17 × 1041.00 × 10714

Using the MFTF method described in SLVK047 and combining (or summing) the fluences of the eight runs at 125°C (7.99 × 107 ions·cm2), the upper-bound cross-section (using a 95% confidence level) is calculated as:

Equation 1. σ S E L   ≤ 1.23   x   10 - 7 c m 2 d e v i c e f o r   L E T E F F = 48   M e V ∙ c m 2 m g a n d   T = 125 ° C
GUID-20230810-SS0I-PSGK-MQPR-DDQBNGDS8VLK-low.svg Figure 7-1 Current vs Time for Run # 1 of the TPS7H2211-SEP at T = 125°C