TPS3897ADRYR TI Supervisors

The TPS3897A is a precision voltage supervisor with programmable delay and active-low open-drain reset output. It operates from 1.7V to 5.5V and features a fixed threshold voltage of 1.2V (A variant). The device provides a reset output with user-programmable delay from 2.5ms to 12.8s using an external capacitor. Supply current is 3µA typical, making it suitable for battery-powered applications. The TPS3897A features high threshold accuracy of 1% over temperature. Selection is ideal for low-voltage system monitoring requiring adjustable reset delay. Applications include microcontrollers, DSPs, and FPGAs in portable medical devices, industrial sensors, IoT nodes, automotive electronics, and battery-powered systems requiring power-on reset and brown-out detection with programmable delay. In stock at HL Electronics – request a quote for fast delivery.