SLVK263 May 2026 TPS7H5030-SP , TPS7H5031-SP
The purpose of this study was to characterize the effect of heavy-ion irradiation on the single-event effect (SEE) performance of the TPS7H503x-SP radiation-hardened, current mode, single-ended PWM controller with an integrated gate driver. Heavy-ions with LETEFF = 75MeV×cm2/mg were used for the SEE characterization campaign. Flux of approximately 105ions/cm2/s and fluences of approximately 1x107ions/cm2 per run were used for the characterization. The SEE results demonstrated that the TPS7H503x-SP is free of destructive SEL and SEB LETEFF = 75MeV×cm2/mg and across the full electrical specifications. Transients at LETEFF = 75MeV×cm2/mg were monitored and discussed CREME96-based worst week event-rate calculations for LEO(ISS) and GEO orbits for DSEE are presented for reference.