Overview of TPS3809L30QDBVR from Texas Instruments

The TPS3809L30QDBVR is a state-of-the-art supervisory circuit designed by Texas Instruments (TI) to provide critical system monitoring and protection functionalities. This compact device is essential for applications requiring precise voltage monitoring to ensure reliable system operation, particularly in the event of power failures or outages.

Key Features

• Voltage Supervision: The TPS3809L30QDBVR offers a fixed-sense threshold voltage of 3.0V, which is ideal for monitoring 3.3V power supplies. This feature ensures that the system operates within safe voltage levels.
• Low Power Consumption: With a very low quiescent current of 9 µA, this device is optimized for battery-powered and low-power applications, contributing to extended system battery life.
• High Accuracy: It provides high threshold voltage accuracy at ±2%, facilitating precise monitoring and reliable system performance.
• Manual Reset: The manual reset input allows for an external override, giving system designers the flexibility to initiate a system reset as needed.
• Power-On Reset Generator: The built-in power-on reset generator ensures that the processor and other critical components are reset properly at power-up, power-down, and brown-out conditions.
• Temperature Range: The device operates over a wide temperature range of –40°C to 85°C, making it suitable for industrial applications.

Package and Availability

The TPS3809L30QDBVR comes in an ultra-small SOT-23-6 package, which is highly beneficial for space-constrained applications. Its small footprint allows for high-density PCB layouts, which is particularly important in portable electronic devices.

Applications

This voltage supervisor is versatile and can be used in a variety of applications, including:

• Portable Electronics
• Microcontroller or Microprocessor Systems
• Industrial Equipment
• Networking Equipment
• Notebook Computers

Conclusion

The TPS3809L30QDBVR from Texas Instruments is an indispensable component for designers who require a reliable and precise voltage supervisory solution. Its low power consumption, high accuracy, and compact size make it an excellent choice for a wide range of applications where system integrity is paramount.