The MIC2772-L3T3YML is a voltage monitoring and reset IC manufactured by Micrel (now Microchip Technology). It is designed to provide reliable reset signals for microprocessors, microcontrollers, and other digital systems. This device ensures that the system starts up correctly and operates safely by monitoring the supply voltage and asserting a reset signal when the voltage falls below a specified threshold.

Applications

• Microprocessor/Microcontroller Systems: Ensures reliable startup and operation of embedded systems.
• Industrial Control Systems: Provides reset functionality in industrial automation equipment.
• Automotive Electronics: Used in automotive control modules for safe operation.
• Consumer Electronics: Incorporated into various consumer devices to ensure proper initialization.
• Power Management Systems: Monitors supply voltage and asserts reset signals in power management circuits.

Features

• Precision Voltage Monitoring: Accurately monitors the supply voltage.
• Adjustable Reset Timeout: Allows customization of the reset duration.
• Active-Low Reset Output: Provides a reset signal that is active low.
• Small Package: Available in a compact package for space-constrained applications.
• Low Power Consumption: Minimizes power consumption in battery-powered devices.
• Temperature Range: Operates over a wide temperature range for industrial and automotive applications.

Benefits

• Reliable System Operation: Ensures that the system starts up and operates correctly.
• Prevents Data Corruption: Protects against data corruption caused by voltage fluctuations.
• Simplified Design: Easy to integrate into various circuits.
• Space Saving: Compact package saves valuable board space.
• Energy Efficient: Low power consumption extends battery life in portable devices.

Additional Details

The MIC2772-L3T3YML features a specific voltage threshold, indicated by the "L3T3" in the part number, which signifies a particular voltage level (typically 3.3V). The reset timeout period can be adjusted using an external capacitor, allowing designers to tailor the reset duration to the specific needs of their application. The device is available in various package options, including SOT-23 and other small form factors. Detailed electrical specifications, including threshold accuracy, reset delay time, and power supply current, are available in the Microchip Technology datasheet. The device is designed to be highly immune to noise and voltage transients, ensuring reliable operation in harsh environments. The datasheet specifies the operating voltage range, temperature range, and other critical parameters to ensure proper application of the device. The part number includes package and temperature grade information, allowing designers to select the appropriate version for their specific requirements. Furthermore, it has built-in hysteresis to prevent erratic reset behavior caused by minor voltage fluctuations.