TPS3305-18DRG4

The TPS3305-18DRG4 is a voltage supervisor and reset IC manufactured by Texas Instruments. It is designed to monitor power supply voltages and provide a reset signal to microcontrollers and other digital devices when the supply voltage falls below a specified threshold. Here’s a detailed description of its features and specifications:

Key Features:

1. Voltage Monitoring: The TPS3305-18DRG4 monitors a supply voltage range, typically around 1.8V, making it suitable for low-voltage applications. It ensures that the system operates within safe voltage levels.

2. Reset Output: The device provides a reset output signal that is asserted when the monitored voltage drops below the threshold. This output is typically active low, ensuring that the connected microcontroller or digital device is reset when necessary.

3. Adjustable Reset Threshold: The reset threshold can be configured to meet specific application requirements, allowing for flexibility in design.

4. Debounce Time: The TPS3305-18DRG4 includes a built-in delay (or debounce) feature that prevents false triggering of the reset signal due to transient voltage fluctuations. This ensures that the reset signal is stable and reliable.

5. Low Power Consumption: The device is designed for low power operation, making it suitable for battery-powered applications. It typically consumes minimal current during operation.

6. Temperature Range: The TPS3305-18DRG4 operates over a wide temperature range, making it suitable for various environmental conditions.

7. Package Type: The device is available in a small, surface-mount package (DRG4), which is ideal for space-constrained applications. The compact design allows for easy integration into printed circuit boards (PCBs).

8. Applications: Common applications for the TPS3305-18DRG4 include microcontroller reset circuits, power management systems, automotive electronics, and any system requiring reliable voltage monitoring and reset functionality.

Electrical Characteristics:

• Supply Voltage Range: The device typically operates within a specified voltage range, ensuring compatibility with various power supply systems.
• Reset Threshold Voltage: The specific voltage level at which the reset output is triggered can be adjusted based on the application needs.
• Output Drive Capability: The reset output can drive a certain amount of current, allowing it to interface directly with other components in the system.

Conclusion:

The TPS3305-18DRG4 from Texas Instruments is a versatile and reliable voltage supervisor and reset IC that provides essential functionality for ensuring the stability and reliability of electronic systems. Its low power consumption, adjustable reset thresholds, and compact package make it an excellent choice for a wide range of applications in modern electronics.