Two-rail supervisor for automotive power sequencing
The Texas Instruments TPS3306-15QDRQ1 is a multi-voltage supervisor that monitors two independent supply rails with thresholds of 1.4V and 2.93V, asserting an active-low reset when either rail drops below its threshold. The open-drain output allows wired-OR connection with other reset sources, and the 70ms minimum reset timeout provides a clean power-up delay for the downstream processor or FPGA.