Supervisor for a 2.4V rail — threshold and reset behaviour
The TPS3840DL24DBVR is a single-channel voltage supervisor from TI's TPS3840 family, monitoring a 2.4V threshold with an active-low, open-drain reset output. The 2.4V threshold suits monitoring a 2.5V or 3.3V rail where the supervisor must assert reset before the supply drops below the processor's minimum operating voltage.
Temperature range and package — industrial and automotive fit
Housed in a SOT-23-5 (SC-74A) package, the 5-pin footprint is a common supervisor layout — the open-drain output pulls to the pull-up rail, so the reset signal swings to the MCU's VDD regardless of the monitored rail voltage.
ROHS3 compliant.
Sourcing and quoting for volume
The base product number TPS3840 covers multiple threshold options; the DL24 suffix locks the 2.4V threshold, so confirm the BOM calls for exactly that trip point.