TPS3840DL35DBVR

The Texas Instruments TPS3840DL35DBVR is a nanopower supervisor IC featuring a wide operating voltage range from 1.5V to 10V. It consumes a low supply current of typically 300nA, making it suitable for battery-powered applications where energy efficiency is critical.

This supervisor provides a fixed threshold voltage that can be set from 1.6V to 4.9V with high accuracy. It includes built-in hysteresis and a programmable reset time delay, which can be adjusted from 50µs up to 6.2 seconds. The device also features an active-low manual reset input for added control.

Packaged in a compact SOT-23-5 surface-mount package, the TPS3840DL35DBVR operates across a wide temperature range of -40°C to 125°C. Its open-drain output requires a pull-up resistor. This component is ideal for monitoring voltage rails in various electronic systems where reliable power-on reset and voltage supervision are essential.

Key specifications include a typical start-up delay of 220µs and a reset output that asserts when the voltage drops below the threshold. The wide input voltage capability allows monitoring of 9V rails directly and 24V rails with external resistors.