TPS3808G33Q1 Low Quiescent Current, Programmable-Delay Supervisory Circuit

The TPS3808G33Q1 from Texas Instruments is a high-precision programmable-delay supervisory circuit designed to provide a critical interface between the power management and monitoring of your digital systems. This device is an essential component for ensuring the reliability and stability of systems that require careful monitoring of supply voltages and other vital parameters.

With a very low quiescent current of just 2.5 µA, the TPS3808G33Q1 is optimized for battery-powered and low-power applications where energy efficiency is paramount. It supports a fixed-sense threshold voltage of 3.3V, which aligns with common logic levels, making it suitable for a wide variety of digital and mixed-signal applications.

The TPS3808G33Q1 features a programmable time delay, which provides designers with the flexibility to set the power-on reset delay according to specific system requirements. This delay can be adjusted through an external capacitor, allowing for a tailored initialization time for the connected microcontroller or processor.

Another key feature of this supervisory circuit is the manual reset input, which enables a system reset to be triggered with an external signal. This input is particularly useful for implementing a manual system restart or for testing purposes. Additionally, the TPS3808G33Q1 offers a reset output that can be configured as either active-low or active-high, providing compatibility with different logic levels and allowing for seamless integration into various design architectures.

The TPS3808G33Q1 is available in a small 6-pin SOT-23 package, which is ideal for space-constrained applications. Its wide operating temperature range of -40°C to 125°C ensures that it can function reliably in harsh environments, making it suitable for automotive and industrial applications.

In summary, the TPS3808G33Q1 is a versatile and reliable choice for system voltage monitoring and reset management. With its low power consumption, programmable delay, and flexible configuration options, it is a valuable addition to any power-sensitive design that requires precise control over system initialization and operation.