2.93V threshold — matching the 3.3V rail
When the monitored voltage drops below this level, the active-low reset output (push-pull, totem pole) asserts and holds the processor in reset until the supply recovers and stays above the threshold for the minimum 15 ms reset timeout period. This part is a drop-in supervisor for 3.3V systems where a clean, deterministic power-up and brown-out reset is required — common in industrial control, motor drives, and telecom equipment.
Reset timeout — why 15 ms minimum matters
The 15 ms minimum reset timeout ensures the processor's supply and oscillator have stabilised before the reset is released. For a typical MCU with a 10 ms power-on reset requirement, this provides 5 ms of margin — enough to cover supply ramp-up and crystal start-up without external delay components.
No official successor or second-source cross-reference is listed; the base product number TPS3820 family includes other threshold options if the 2.93V level is not the right fit.