Overview of Texas Instruments TPS3809K33DBZR

The TPS3809K33DBZR is a high-precision voltage detector designed and manufactured by Texas Instruments (TI), a leader in semiconductor solutions. This particular model comes in a compact, surface-mount package known as DBZ, which is a small outline, 3-pin SOT-23. It is engineered for monitoring supply voltages and ensuring proper system operation by providing a reset signal to microprocessors or microcontrollers in the event of a voltage drop below a predetermined threshold.

Key Features

• Voltage Monitoring: The TPS3809K33DBZR is designed to monitor a fixed voltage of 3.3V, which is common in digital systems. It maintains a tight 2% threshold accuracy over temperature, ensuring reliable operation.
• Low Power Consumption: This device is optimized for low-power applications with a quiescent current of only 9 µA, making it suitable for battery-powered and energy-sensitive systems.
• Manual Reset Input: It features a manual reset input that allows the system to be reset by external events or user intervention, providing additional control and safety.
• Power-On Reset Generator: The built-in power-on reset generator ensures that the system's microcontroller starts up in a known state after power is applied.
• Temperature Range: The device operates over a wide temperature range of -40°C to +85°C, accommodating various environmental conditions.

Applications

The TPS3809K33DBZR is versatile and can be used in a variety of applications, including:

• Portable and battery-powered electronics
• Microprocessor/microcontroller systems
• Industrial equipment
• Networking and telecom infrastructure
• Automotive systems

Quality and Reliability

TI is known for its commitment to quality, and the TPS3809K33DBZR is no exception. It undergoes rigorous testing and quality control measures to ensure it meets the high standards expected of industrial-grade components. Customers can rely on this voltage detector to perform consistently and reliably in their critical applications.

With its precise voltage monitoring, low power consumption, and additional features such as manual reset, the TPS3809K33DBZR is an excellent choice for designers who require a dependable voltage supervisor for their electronic systems.