Maxim Integrated MAX6315US44D2+T Microprocessor Reset Circuit

The MAX6315US44D2+T is a compact, highly reliable microprocessor (µP) supervisory circuit designed by Maxim Integrated to monitor power supplies in digital systems. This device provides excellent circuit reliability and low cost by eliminating external components and adjustments when used in systems with +5V powered µPs.

Key Features

• Precision Monitoring: The MAX6315US44D2+T features a factory-trimmed reset threshold suitable for monitoring +5V power supplies, ensuring that the µP is reset to a known state during power-up, power-down, or brown-out conditions.
• Low Power Consumption: This device is designed for low power consumption, drawing only 1.5µA of supply current, making it ideal for power-sensitive applications.
• Manual Reset Input: A manual reset input is provided to allow for a forced reset, enabling the user to initiate a system reset at any time.
• High Reset Output Stage: The reset output is active-low, push-pull, which eliminates the need for an external pull-up resistor and can directly interface with other logic components.
• Immune to Short VCC Transients: Fast transients on the VCC line are filtered, ensuring reliable operation without false resets.

Applications

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

Product Specifications

The MAX6315US44D2+T comes in a compact SOT-143 package and operates over a wide temperature range of -40°C to +85°C. The reset threshold voltage is precisely set at 4.40V, with a reset timeout duration of 280ms (min), providing a predictable and reliable reset activation. The device is offered in tape and reel packaging, denoted by the '+T' suffix, which is suitable for automated assembly processes, making it a convenient choice for mass production.

With its robust feature set and Maxim Integrated's reputation for high-quality components, the MAX6315US44D2+T is an excellent choice for designers looking to enhance the reliability of their digital systems with minimal additional cost and space requirements.