Overview of Texas Instruments TPS3306-15DR

The Texas Instruments TPS3306-15DR is a highly reliable, dual voltage supervisor designed to monitor two system voltages simultaneously. It is an essential component for systems that require a high level of precision and operational stability. The TPS3306-15DR ensures that both the microprocessor and the system are reset properly during power-up, power-down, and brown-out conditions.

Key Features

• Dual Voltage Monitoring: This device can supervise two voltages, which is particularly useful for systems that operate with different power domains.
• Programmable Delay: It offers an adjustable delay time through an external capacitor, giving designers the flexibility to set the reset timeout period according to their system requirements.
• Low Supply Current: With a typical supply current of 40 µA, the TPS3306-15DR is optimized for low-power operations, making it suitable for battery-powered applications.
• Manual Reset Input: The inclusion of a manual reset input allows for an external trigger to initiate a system reset, providing an additional layer of control.
• Wide Operating Temperature Range: It operates over a temperature range of -40°C to +85°C, ensuring reliable performance across various environmental conditions.

Applications

The TPS3306-15DR is versatile and can be used in a wide array of applications, including but not limited to:

• Microprocessor/DSP Monitoring
• Portable/Battery-Powered Equipment
• Industrial Equipment
• Networking Hardware
• Telecommunications Systems

Technical Specifications

The device comes in a small 8-pin SOIC package, making it easy to integrate into space-constrained designs. It has a fixed-sense threshold voltage for the primary voltage (VIT1) at 1.5V, which is suitable for many common applications. The secondary voltage (VIT2) threshold is externally adjustable, providing flexibility for monitoring a second voltage rail.

Conclusion

In summary, the Texas Instruments TPS3306-15DR is a robust, dual voltage supervisor that offers precision monitoring, low power consumption, and a wide operating temperature range, making it an excellent choice for ensuring system reliability and stability across various electronic applications.