The MAX813LEPA from Maxim Integrated is a robust microprocessor (μP) supervisory circuit designed to monitor power supplies and microprocessor activity in digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used in battery-powered systems.

Key Features

• Precision Monitoring: This device features a precision voltage monitor that keeps a watchful eye on the power supply, ensuring that the microprocessor is reset to a known state during power-up, power-down, and brownout conditions.
• Manual Reset Input: A manual reset input is provided, allowing for a straightforward hardware reset, which can be highly beneficial in scenarios where software control needs to be overridden.
• Backup Battery Switchover: The MAX813LEPA includes a backup battery switchover feature that is essential for maintaining critical operations during main power failures.
• Low Power Consumption: With its low power consumption, this supervisory circuit is an ideal choice for battery-operated equipment, contributing to longer battery life and reduced power costs.

Applications

Due to its versatile nature, the MAX813LEPA is suitable for a wide range of applications, including:

• Computers and Controllers
• Intelligent Instruments
• Portable/Battery-Powered Equipment
• Critical μP Power Monitoring

Technical Specifications

The MAX813LEPA operates with a supply voltage range of 1V to 5.5V, making it compatible with a variety of digital systems. It comes in an 8-pin μMAX package, offering a compact footprint for space-constrained applications. Additionally, it features an active-low reset output, which remains asserted for a minimum of 140ms after VCC has risen above the reset threshold, ensuring proper system reset.

Conclusion

Maxim Integrated's MAX813LEPA is an essential component for any design requiring reliable voltage monitoring and processor reset functionality. Its integration of key features with a small form factor makes it a highly efficient solution for modern electronic systems.