The TPS3823-25DBVR from Texas Instruments is a highly reliable, low-power supervisory circuit designed to monitor power supplies in digital systems and provide a reset signal to the host processor when necessary. It ensures that the system's microprocessor or digital system initializes in a known state during power-up, power-down, or brown-out conditions.

Key Features

• Voltage Monitoring: This device features a precision voltage monitor with a threshold of 2.5V, tailored for 2.5V-powered systems.
• Reset Time Delay: The TPS3823-25DBVR includes an integrated time delay function, which can be set by an external capacitor to provide a reset delay as required by the system.
• Manual Reset: A manual reset input is provided, enabling the user to trigger a reset pulse with an external push-button or logic signal.
• Low Supply Current: With its low operational current draw, this supervisory circuit is suitable for battery-powered and portable applications where power efficiency is critical.
• Supply Voltage Range: It supports a wide supply voltage range, accommodating various digital systems and ensuring versatility across different applications.
• Reset Output: The device offers an active-low reset output, which remains asserted for the time delay period after the monitored voltage has risen above the reset threshold level.
• Temperature Range: The TPS3823-25DBVR operates over a broad temperature range, making it suitable for industrial and automotive environments.
• Small Form Factor: Housed in a compact SOT-23-5 package, this supervisory circuit minimizes board space and is ideal for space-constrained applications.

Applications

The TPS3823-25DBVR is ideal for a variety of applications that require reliable voltage monitoring and system reset functionality. These include:

• Portable and battery-powered equipment
• Microprocessor, microcontroller, or digital system monitoring
• Intelligent instruments
• Industrial controls
• Embedded systems

With its robust feature set and Texas Instruments' reputation for quality, the TPS3823-25DBVR is a smart choice for designers looking to enhance system reliability and performance in their digital applications.