SLVK237 December 2025 SN55LVRA4-SEP
The purpose of this study was to characterize the effects of heavy-ion irradiation on the single-event latch-up (SEL) performance of the SN55LVRA4-SEP radiation-tolerant, quad channel differential line receiver. SEE performance was verified at minimum (3V) and maximum (3.6V) operating conditions. Heavy-ions with an LETEFF of 50MeV-cm2/ mg were used to irradiate four production devices and heavy-ions with an LETEFF of 47MeV-cm2/ mg were used to irradiate one production device with a fluence of 1 × 107 ions / cm2. The results demonstrate that the SN55LVRA4-SEP is SEL-free up to LETEFF = 50MeV-cm2/ mg as 125°C. SET performance for the minimum (3V) and nominal (3.3V) operating voltages saw excursions, as shown and discussed in this report.