The TPS3824-25DBVT is a supervisory circuit device from Texas Instruments, designed to provide crucial monitoring functions for microprocessor (µP) systems. It achieves this by asserting a reset signal whenever the VCC supply voltage drops below a preset threshold, ensuring the proper operation of the µP and associated circuits.

Key Features

• Voltage Monitoring: This device has a fixed-sense threshold voltage of 2.5V, which is tailored for applications that operate at this specific voltage level.
• Manual Reset: It also includes a manual reset input, allowing for an external trigger to initiate a reset sequence, offering additional system control and flexibility.
• Power-On Reset Generator: The TPS3824-25DBVT has an inbuilt power-on reset generator that ensures the system's µP starts up in a known state.
• Watchdog Timer: An integrated watchdog timer serves as an autonomous system check, ensuring the system remains functional by monitoring the µP or software activity.
• Supply Voltage Range: It operates over a supply voltage range of 1.1V to 5.5V, making it versatile for various low-voltage applications.
• Low Supply Current: With a typical supply current of 15µA, the device is suitable for power-sensitive applications.
• Temperature Range: The TPS3824-25DBVT is operational over a wide temperature range from -40°C to +85°C, allowing it to function in diverse environmental conditions.
• Packaging: It comes in a small 5-pin SOT-23 package, making it ideal for space-constrained applications.

Applications

The TPS3824-25DBVT is particularly suited for use in portable electronics, such as laptops and mobile phones, as well as industrial controls, embedded systems, and other microprocessor-based applications that require precise voltage monitoring and reliable system reset functionality.

With its combination of features, the TPS3824-25DBVT from Texas Instruments is an essential component for ensuring system stability and reliability, especially in applications where power conditions may be uncertain or variable.