TLV809I50DBVR

The TLV809I50DBVR is a voltage supervisor integrated circuit (IC) manufactured by Texas Instruments. It is designed to monitor power supply voltages and provide a reset signal when the voltage falls below a specified threshold. Here’s a detailed description of its features and specifications:

Key Features:

1. Voltage Monitoring: The TLV809 monitors supply voltages and ensures that the system operates within safe voltage levels. It is particularly useful in microcontroller applications where a stable voltage is critical for reliable operation.

2. Reset Threshold: The TLV809I50DBVR has a fixed reset threshold voltage of 5.0V. This means that when the supply voltage drops below this level, the output will transition to a low state, signaling that the system should reset.

3. Output Type: The output of the TLV809 is an active-low reset signal. This means that when the monitored voltage is below the threshold, the output pin will pull low, indicating a reset condition.

4. Reset Timeout: The device features a built-in reset timeout period, which ensures that the reset signal remains active for a specified duration after the supply voltage returns to normal levels. This helps to prevent erratic behavior during power-up or brown-out conditions.

5. Low Supply Current: The TLV809 is designed to operate with low supply current, making it suitable for battery-powered applications where power efficiency is crucial.

6. Temperature Range: The device operates over a wide temperature range, typically from -40°C to +125°C, making it suitable for industrial and automotive applications.

7. Package Type: The TLV809I50DBVR is available in a small SOT-23 package, which is ideal for space-constrained designs. The compact size allows for easy integration into various circuit layouts.

8. Pin Configuration: The SOT-23 package typically has five pins, including the input voltage pin, ground pin, output pin, and two additional pins for configuration and monitoring.

Applications:

• Microcontroller Reset: The TLV809 is commonly used in microcontroller-based systems to ensure that the microcontroller starts up correctly and operates reliably.
• Power Supply Monitoring: It can be used in power supply circuits to monitor voltage levels and provide reset signals to downstream components.
• Automotive Systems: Due to its wide temperature range and robustness, it is suitable for automotive applications where voltage monitoring is critical.
• Consumer Electronics: The device can be found in various consumer electronics where reliable operation is necessary during power fluctuations.

Conclusion:

The TLV809I50DBVR from Texas Instruments is a versatile and reliable voltage supervisor IC that provides essential monitoring and reset functionality for a wide range of electronic applications. Its low power consumption, fixed reset threshold, and compact package make it an excellent choice for designers looking to enhance the reliability of their systems.