Product Overview: MIC803-31D3VC3-TR from Microchip Technology

The MIC803-31D3VC3-TR is a precision voltage supervisor designed to monitor power supplies in digital systems. Manufactured by Microchip Technology, this device is an essential component for applications that require reliable system reset. It ensures that all system voltages are within acceptable limits before allowing the digital system to initialize, thereby safeguarding against improper operation due to low voltage conditions.

Key Features

• Voltage Threshold: The MIC803-31D3VC3-TR has a preset threshold voltage of 3.1V, which is ideal for monitoring 3.3V power supplies. This precision voltage threshold ensures that the system does not operate under undervoltage conditions that could lead to system failure or erratic behavior.
• Reset Timeout Delay: The device features a built-in delay of 120ms (minimum) which provides a reliable reset output upon power-up, power-down, and brown-out conditions. This delay allows the power supply to stabilize before the system is allowed to start.
• Low Power Consumption: With a low quiescent current, the MIC803 is optimized for battery-powered applications where power efficiency is critical.
• Output Logic: The open-drain output of the MIC803-31D3VC3-TR provides a reset signal that can be pulled up to a voltage suitable for interfacing with the rest of the system logic.
• Temperature Range: Designed to operate over an industrial temperature range, the device is reliable in various environmental conditions.
• Packaging: The MIC803 is available in a 3-pin SOT-23 package, which is suitable for space-constrained applications.

Applications

With its precision monitoring and low power consumption, the MIC803-31D3VC3-TR is an excellent choice for a wide range of applications, including:

• Microprocessor, microcontroller, and DSP power supply monitoring
• Portable and battery-powered equipment
• Intelligent instruments
• Medical and safety systems
• Automotive systems

The MIC803-31D3VC3-TR is a reliable solution for systems that cannot afford to compromise on power stability. Its combination of features ensures that digital systems operate only when power conditions are optimal, thereby protecting both the system and the data it processes.