Microchip Technology MIC2775-22BM5-TR

The MIC2775-22BM5-TR from Microchip Technology is a high-performance, low-power supervisory circuit designed to monitor power supplies in digital systems. It provides a precise, cost-effective solution for systems that require voltage monitoring and processor reset capabilities. This supervisory circuit is ideal for battery-powered devices, portable electronics, and microprocessor-based systems where power management is critical.

The MIC2775-22BM5-TR operates over a wide voltage range and offers a factory-programmed threshold voltage of 2.2V, which makes it suitable for monitoring 2.5V power supplies. Its low quiescent current of 3.5µA (typical) ensures minimal power consumption, extending the battery life in portable applications.

Key features of the MIC2775-22BM5-TR include:

• Reset Timeout: This device has an internally fixed delay time that provides a reset timeout of 140ms (minimum), which allows the system to recover before the processor restarts.
• Manual Reset Input: It features a manual reset input that enables the user to initiate a system reset, providing additional system control and flexibility.
• Watchdog Timer: The integrated watchdog timer serves as an autonomous system monitor, which can reset the system in case of software or hardware malfunction.
• Output Options: The MIC2775-22BM5-TR provides an active-low reset output, which is guaranteed to be in the correct state for VCC down to 1.0V, ensuring reliable system reset.
• Small Footprint: Packaged in a compact SOT-23-5 package, this device is optimized for space-constrained applications.

With its built-in brown-out protection and power supply glitch immunity, the MIC2775-22BM5-TR ensures that all system components are reset simultaneously and properly during power-up, power-down, or brown-out conditions. Its temperature range of -40°C to +85°C allows for operation in a wide range of environmental conditions.

Overall, the MIC2775-22BM5-TR supervisory circuit is a reliable and versatile solution for maintaining system integrity and protecting against power supply anomalies. Its small size, low power consumption, and robust feature set make it an excellent choice for designers looking to enhance the reliability and performance of their digital systems.