ON Semiconductor MAX809SQ293D1T1G Microprocessor Reset Monitor

The MAX809SQ293D1T1G is a compact, highly reliable microprocessor (µP) supervisory circuit designed by ON Semiconductor to monitor power supplies in digital systems. It provides a significant function in ensuring system integrity by managing the reset activity for microprocessors, microcontrollers, and other digital systems.

This precision device is engineered to assert a reset signal whenever the VCC supply voltage declines below a preset threshold, ensuring that the system reboots cleanly in the event of power disturbances. The reset signal remains asserted for an adequate period after VCC has risen above the reset threshold level, providing enough time for the system to stabilize.

Key Features of the MAX809SQ293D1T1G:

• Precision Monitoring: Features a factory-trimmed reset threshold voltage suitable for monitoring 2.93V power supplies.
• Low Power Consumption: Designed for low power consumption, making it ideal for use in power-sensitive applications.
• Reset Timeout: Provides a 140 ms minimum reset timeout delay, ensuring proper system reset.
• Operating Temperature: Functions reliably over an extended temperature range of -40°C to +85°C, suitable for various operating environments.
• Package Type: Available in a space-saving SOT-23 package, which is advantageous for space-constrained applications.
• Immunity to Short VCC Transients: Ensures stable operation by ignoring brief perturbations on the VCC line.

Applications for the MAX809SQ293D1T1G are diverse and include portable devices, computers, embedded systems, and other digital systems that require reliable voltage monitoring. Its ease of integration, coupled with ON Semiconductor's reputation for quality, makes it a go-to component for designers looking to enhance the operational stability of their systems.

The MAX809SQ293D1T1G reset monitor from ON Semiconductor stands out as an essential component for safeguarding system integrity by providing a simple yet effective solution for managing power supply variations and ensuring proper system reset functionality.