The MAX691AESE+ from Maxim Integrated is a highly integrated microprocessor (µP) supervisory circuit designed to monitor power supplies and µP activity in digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used in microprocessor systems.

Key Features

• Power Supply Monitoring: This device ensures that the system's power supply remains within acceptable voltage levels, protecting the system from uncertain power-up, brownout conditions, and power-down events.
• µP Reset: The MAX691AESE+ generates a reset signal for the connected microprocessor whenever the monitored power supply falls below a designated threshold, ensuring the µP starts in a known state.
• Watchdog Timer: A built-in watchdog timer monitors the microprocessor activity and initiates a system reset if the µP fails to strobe within a preset timeout period.
• Battery Backup Switching: This feature allows the device to automatically switch to a backup battery when the main power fails, ensuring uninterrupted operation.
• Manual Reset Input: The device includes a manual reset input that allows for a reset to be triggered with an external signal.

Applications

The MAX691AESE+ is ideal for use in microprocessor systems, computers, controllers, intelligent instruments, and critical µP power monitoring. Its versatility makes it suitable for a broad range of applications where reliable system operation is paramount.

Specifications

The device is packaged in a 16-pin Narrow SO type, with an operating temperature range from -40°C to +85°C. It is designed to monitor 5V power supplies with a precision of ±4.5% over the full temperature range.

Ordering Information

To order the MAX691AESE+ or to request samples, visit Maxim Integrated's official website or contact an authorized distributor. Ensure to refer to the product's datasheet for comprehensive technical specifications before integrating it into your system design.