Maxim Integrated MAX809MEUR-T10 Microprocessor Reset Circuit

The MAX809MEUR-T10 is a compact, highly reliable microprocessor (µP) supervisory circuit designed and manufactured by Maxim Integrated. This precision device is engineered to monitor power supplies in digital systems, providing a significant layer of protection by ensuring that the µP and its peripherals are reset properly during power-up, power-down, and brown-out conditions.

This supervisory circuit is particularly suitable for applications where an efficient and automatic system reset is crucial for maintaining the integrity of the operation. The MAX809MEUR-T10 is widely used in portable/battery-powered equipment, computers, controllers, intelligent instruments, and critical µP and µC power monitoring due to its ease of integration and robust feature set.

Key Features of the MAX809MEUR-T10:

• Precision Monitoring: The device features a factory-trimmed reset threshold suitable for monitoring 3V, 3.3V, and 5V power supplies.
• Low Power Consumption: With its low supply current of 20µA (typical), it is an efficient choice for power-sensitive applications.
• Reset Output: The reset output is active-low, ensuring compatibility with most microprocessors, and remains asserted for a minimum of 140ms after VCC has risen above the reset threshold.
• Temperature Range: The operating temperature range of the MAX809MEUR-T10 is from -40°C to +85°C, making it suitable for a wide variety of environments.
• Compact SOT-23 Packaging: Its small size SOT-23 package makes it ideal for space-constrained applications.

Applications:

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

The MAX809MEUR-T10 is an essential component for systems requiring robust and reliable power supply monitoring. Its precision, combined with low power consumption and small footprint, offers designers a practical solution for enhancing system stability and performance. Maxim Integrated's commitment to quality ensures that this reset circuit meets the stringent requirements of modern electronic devices.