Maxim Integrated MAX810TEUR-T Microprocessor Reset Circuit

The MAX810TEUR-T from Maxim Integrated is a compact, highly-reliable microprocessor (μP) supervisory circuit designed to monitor power supplies in digital systems. It provides a significant level of protection for your microprocessors by ensuring that the system's power-on reset will remain active until the supply voltage reaches a stable and acceptable level for reliable system operation. This precision circuit is essential for managing system integrity and preventing potential damage due to erratic operation caused by insufficient power on startup or brownout conditions.

This device features a factory-trimmed reset threshold voltage, which is suitable for operation with a variety of supply voltages, making it versatile for integration into multiple applications. When the supply voltage drops below the preset threshold, the MAX810TEUR-T asserts a reset signal, which remains asserted for a minimum of 140ms after the supply voltage exceeds the reset threshold level. This ensures that the system has adequate time to stabilize before normal operation resumes.

The MAX810TEUR-T is offered in a small, three-pin SOT-23 package, which is ideal for space-constrained applications. Despite its small size, it does not compromise on performance and reliability. It is capable of operating over a wide temperature range of -40°C to +85°C, making it suitable for use in environments with varying temperature conditions.

Key features of the MAX810TEUR-T include:

• Low supply current of 20μA (typical), which is beneficial for power-sensitive applications.
• Guaranteed reset valid to VCC = 1V, ensuring functionality at lower voltages.
• No external components are required, simplifying design and reducing overall system cost.
• Immune to short VCC transients, providing robust performance in noisy environments.

Applications for the MAX810TEUR-T are diverse, ranging from computers and controllers to portable/battery-powered equipment. Its precision voltage monitoring and low power consumption make it an excellent choice for designers looking to enhance the reliability and performance of their digital systems.

With Maxim Integrated's reputation for high-quality integrated circuits, the MAX810TEUR-T is a dependable component for maintaining system stability and protecting investments in technology infrastructure.