The DS1238AS-5 is a robust microprocessor supervisory circuit manufactured by Maxim Integrated, designed to monitor the power supplies in microprocessor and digital systems. It provides a precise way to manage power-on reset and battery backup switching functions within computers, controllers, intelligent instruments, and critical microprocessor-based systems.

Key Features

• Power Supply Monitoring: The DS1238AS-5 ensures that the microprocessor is reset to a known state during power-up, power-down, or brownout conditions. It maintains reset until the system voltage reaches a stable and safe operating level.
• Battery Backup Switching: It includes an automatic switch-over to battery backup when the main supply voltage fails, ensuring uninterrupted operation of memory and critical components.
• Low Power Consumption: Designed for efficient operation, the DS1238AS-5 has a low power consumption profile, making it suitable for battery-powered applications.
• Voltage Threshold: The device operates with a preset threshold voltage suitable for monitoring 5V power supplies, with precision temperature-compensated voltage reference and comparator circuits.
• Manual Reset Input: It features a manual reset input that allows for a very low standby current, making it possible to initiate a system reset manually.

Applications

The DS1238AS-5 is versatile and can be used in a wide range of applications, including but not limited to:

• Computers and servers
• Embedded systems
• Intelligent instruments
• Portable/battery-powered equipment
• Industrial controllers

Technical Specifications

With its reliable performance and Maxim Integrated's commitment to quality, the DS1238AS-5 is a top choice for ensuring system stability and integrity in a multitude of applications.