PWR-26 — External rail OCP transient blanking + fast-trip
draft · Power
Statement
External rails (12V_EXT, 3V3_EXT, 1V8_EXT, VADJ, EXT_VIO) shall permit brief transient load pulses without nuisance shutdown, but shall shut down immediately on persistent overcurrent or short-circuit
Acceptance Criteria
Transient blanking interval tITIMER ≤ 1.8 ms before shutdown when Ilim ≤ I_load < 2×Ilim; fast-trip when I_load ≥ 2×Ilim; fault flag raised on shutdown; rail stays off until re-enabled. Per Sparrow Hardware Datasheet v3 §5.2 page 33 and §6.2 (sourceRef: 01_ProductSpec/Sparrow Hardware Datasheet-v3-20260504_150735.pdf)
Sign-offs
No sign-offs recorded. Approving a requirement records one here.