The TPS3828-33DBVR is a highly reliable, low-power supervisory circuit designed by Texas Instruments to monitor power supply functionality in digital systems. This device enhances system integrity by asserting a reset signal whenever the VCC supply voltage drops below a preset threshold, ensuring proper operation of the system by providing a controlled startup sequence.

Key Features

• Precision Supply Voltage Monitor: The TPS3828-33DBVR features a fixed-sense threshold voltage of 3.3V, which is ideal for monitoring 3.3V power supplies.
• Low Power Consumption: With a quiescent current of only 15 µA (typical), this device is suitable for power-sensitive applications.
• Manual Reset Input: The inclusion of a manual reset input allows for an external trigger of the reset signal, providing additional system control.
• Programmable Delay: The reset time delay is programmable via an external capacitor, which allows designers to tailor the reset assertion time to specific system requirements.
• High Accuracy: The device ensures high accuracy in monitoring the supply voltage, which is crucial for reliable system operation.
• Temperature Range: The TPS3828-33DBVR operates over a wide temperature range of –40°C to +85°C, making it suitable for various industrial and commercial environments.

Applications

The versatility of the TPS3828-33DBVR makes it an excellent choice for a wide range of applications, including but not limited to:

• Microprocessor, Microcontroller, or DSP Systems
• Portable/Battery-Powered Equipment
• Industrial Equipment
• Networking Equipment
• Telecommunications Systems

Package and Quality

Packaged in a small, 5-pin SOT-23 (DBV) package, the TPS3828-33DBVR is designed for space-constrained applications. Texas Instruments is committed to maintaining the highest quality standards, and this product is no exception, offering reliable performance for critical system monitoring.

In conclusion, the TPS3828-33DBVR supervisory circuit stands out for its precision voltage monitoring, low power consumption, and programmable features, making it an essential component for ensuring the stability and reliability of electronic systems.