Supervisor for processor power-rail sequencing
The TPS3808G01DRVT: The open-drain, active-low output lets the supervisor interface directly with the reset input of most MCUs, DSPs, or FPGAs without level-shifting — the output pulls low on fault and releases to high-impedance when the supply is valid, relying on an external pull-up resistor to the core voltage rail. Operating across -40°C to +125°C junction temperature, this part suits industrial and automotive environments where the board sees wide thermal cycling — a motor-drive controller or an engine-bay ECU that must hold reset state through cold cranking and hot soak.
Adjustable threshold and timeout — what they mean for the BOM
Both the voltage threshold and the reset timeout period are adjustable/selectable via external resistor dividers. The 6-WSON package (2x2 mm) with exposed pad provides a low thermal resistance path to the PCB ground plane.