SBOK045 March 2024 INA901-SP
6.1 Single-Event Latch-up (SEL) Results
During SEL characterization, the device was heated using forced hot air, maintaining the die temperature at 125°C. The ion used for the SEL testing was Ho(165Ho) with an angle of incidence of 0° and 35° for an LETEFF = 76 and 93MeV-cm2 / mg, respectively. A flux of approximately 105 ions / cm2-s and a fluence of approximately 107 ions were used for all five runs. Run duration to achieve this fluence was approximately 120 seconds. The common mode voltage was set to the recommended maximum at 65V with a supply voltage of 16V. No SEL events were observed during all seven runs shown in Table 7-2. Figure 6-1 shows a typical plot of the current versus time.
| Run Number | Distance (mm) |
Temperature (°C) |
Ion | Angle | FLUX (ions × cm2 / mg) |
Fluence (Number of ions) |
LETEFF
(MeV × cm2/ mg) |
|---|---|---|---|---|---|---|---|
| 3 | 40 | 125 | Ho | 0° | 1.00E+05 | 1.00e+07 | 76 |
| 4 | 40 | 125 | Ho | 0° | 1.00E+05 | 1.00E+07 | 76 |
| 6 | 40 | 125 | Ho | 35° | 1.00E+05 | 1.00E+07 | 93 |
| 10 | 40 | 125 | Ho | 35° | 1.00E+05 | 1.00E+07 | 93 |
| 11 | 40 | 125 | Ho | 35° | 1.00E+05 | 1.00E+07 | 93 |
No SEL events were observed, indicating that the INA901-SP is SEL-immune at LETEFF = 93MeV-cm2 / mg and T = 125°C.
Figure 6-1 Current vs Time (I vs t) Plot
for VIN Supply Current During SEL Run 11