The Maxim Integrated MAX700CPA is a highly reliable microprocessor (µP) supervisory circuit designed to monitor the power supplies in µP and digital systems. It provides maximum protection for your electronic devices by ensuring that the µP and its peripherals are reset properly during a power failure or brown-out condition. This supervisory circuit is an essential component for systems that require a high degree of operational stability and accuracy.

Key Features

• Precision Voltage Monitoring: The MAX700CPA offers precision monitoring of +5V, +12V, and other voltage options, ensuring that the system operates within safe voltage levels.
• Power-On Reset: It generates a reset pulse when the supply voltage goes above a preset threshold, providing a reliable start-up sequence for the µP.
• Manual Reset: A manual reset feature allows for a reset to be triggered with an external switch, offering additional control over the reset sequence.
• Low Power Consumption: Designed with power efficiency in mind, the MAX700CPA consumes minimal power, making it suitable for power-sensitive applications.
• Backup Battery Switchover: In the event of a power failure, the device automatically switches to a backup battery without oscillation.

Applications

The MAX700CPA is versatile and can be used in a wide range of applications, including:

• Computers and Controllers
• Intelligent Instruments
• Portable/Battery-Powered Equipment
• Embedded Systems

Technical Specifications

With an operating temperature range of 0°C to +70°C, the MAX700CPA is suitable for commercial-grade applications. It comes in an 8-pin DIP package, making it easy to integrate into existing designs. The reset active period is guaranteed to be a minimum of 250ms, ensuring that the µP has sufficient time to initialize after a reset.

Conclusion

Maxim Integrated's MAX700CPA supervisory circuit is a robust solution for managing and protecting the power supply requirements of microprocessor-based systems. With its precision voltage monitoring and versatile features, it is an essential component for ensuring system reliability and performance.