What the 2.1V threshold and active-high reset mean for your power rail
The active-high push-pull output means the reset pin goes high when the monitored voltage is below threshold — useful for directly enabling a regulator or driving a logic input without an external pull-up. The output is push-pull, so it drives both high and low actively, eliminating the need for a pull-up resistor and saving a component on the BOM.
The wide range also covers cold-crank and hot-soak conditions in automotive modules.
Package and footprint for space-constrained boards
The 5-pin SSOP footprint is common and easy to route, making it a drop-in for many existing voltage-detector layouts.