Product Overview: TPS3808G33DBVR from Texas Instruments

The TPS3808G33DBVR is a state-of-the-art supervisory circuit integrated with a programmable delay and watchdog timer, designed by Texas Instruments to ensure reliable operation of microprocessors and other digital systems. This small, yet powerful, device is housed in a compact SOT-23-6 package, making it suitable for space-constrained applications.

At the heart of this supervisory circuit is a voltage detector that monitors the supply voltage (VDD) of a processor or digital system. The TPS3808G33DBVR is specifically designed to maintain a fixed 3.3V supply voltage threshold, which is critical for the stable operation of many electronic components. When the VDD falls below the 3.3V threshold, the device outputs a reset signal to the processor, thereby preventing system failure and data corruption.

One of the key features of the TPS3808G33DBVR is its programmable time delay function. This allows designers to set a specific delay time before the reset signal is deasserted once the supply voltage returns to a safe level. This customizable delay ensures that the system has sufficient time to stabilize before normal operation resumes.

In addition to the voltage monitoring and delay features, the TPS3808G33DBVR incorporates a watchdog timer. This timer periodically checks for system errors and can reset the processor if it becomes unresponsive or behaves erratically. This self-monitoring capability is crucial for systems that require high reliability and fault tolerance.

The device also boasts low power consumption, drawing a quiescent current of only 6.5 µA, which is ideal for battery-powered and energy-sensitive applications. Its wide operating temperature range from -40°C to +125°C ensures performance in harsh environments.

Whether it's for industrial control systems, automotive electronics, portable devices, or any other application requiring a precise monitoring solution, the TPS3808G33DBVR from Texas Instruments is an excellent choice for designers looking to enhance system reliability and protect against the consequences of undervoltage conditions.