Three-rail monitor for multi-voltage board designs
The Texas Instruments TPS3510DRG4 is a multi-voltage supervisor that monitors three supply rails at once — 3.3V, 5V, and 12V — with a single active-low open-drain reset output.
200 ms reset timeout — enough for supply settling
The reset output stays asserted for a minimum of 200 ms after all three monitored voltages cross their thresholds. If your system uses a slow-start hot-swap controller or a large 12V input cap, this 200 ms floor prevents false power-on resets.
Open-drain output for shared reset bus
The active-low open-drain output lets you wire multiple supervisors or a manual reset button onto a common reset line without contention. A single pull-up resistor to the logic supply sets the reset signal high when all supervisors release. This is standard practice in ATX power supplies, industrial controllers, and telecom line cards where several voltage-monitor ICs must agree before the system comes out of reset.
8-SOIC footprint — board-level fit
The 1.27 mm pin pitch breaks out easily to the three monitored rails and the open-drain reset line.