TPS3813K33-EP

The Texas Instruments TPS3813K33-EP is an enhanced product processor supervisory circuit designed for applications using DSPs, microcontrollers, or microprocessors. It features a window-watchdog timer with programmable delay and window ratio, along with a power-on reset generator that has a fixed delay time of 25 ms. This device offers precision supply voltage monitoring for common voltages including 2.5 V, 3 V, 3.3 V, and 5 V, with a typical threshold voltage of 2.93 V and an accuracy of 2%.

The TPS3813K33-EP operates with a low supply current of 9 µA (typical) and is housed in a compact 6-pin SOT-23 package. It is designed for extended temperature performance, operating reliably from -55 °C to 125 °C. The open-drain reset output ensures proper system reset initiation. This component is suitable for safety-critical systems, automotive applications, and healing systems, benefiting from controlled baseline manufacturing and enhanced diminishing manufacturing sources support.

Key features include a programmable watchdog timer, an open-drain reset output, and a wide operating temperature range. The device ensures circuit initialization and timing supervision, asserting RESET when the supply voltage drops below the threshold and maintaining it until the voltage recovers and the internal timer completes its delay cycle. No external components are required for its basic operation.