The MIC812TUY is a voltage monitor IC manufactured by Micrel (now Microchip Technology). This device is designed to monitor the voltage level of a power supply and provide a reset signal to a microprocessor or microcontroller when the voltage falls below a certain threshold. This ensures that the system operates reliably and prevents data corruption or malfunction.

Applications

• Microprocessor/Microcontroller Systems: Provides a reset signal to ensure proper startup and prevent erratic behavior.
• Embedded Systems: Monitors the power supply voltage in embedded systems to maintain system integrity.
• Industrial Control Systems: Ensures reliable operation of control systems by monitoring power supply levels.
• Automotive Electronics: Protects electronic components in automotive applications from voltage fluctuations.
• Power Supplies: Monitors the output voltage of power supplies to detect undervoltage conditions.

Features

• Precision Voltage Monitoring: Accurately monitors the power supply voltage.
• Adjustable Reset Threshold: Allows for customization of the voltage level that triggers the reset signal.
• Open-Drain Reset Output: Provides flexibility in interfacing with different microprocessors and microcontrollers.
• Small Package: Available in a compact package for space-constrained applications.
• Low Supply Current: Consumes minimal power, making it suitable for battery-powered devices.

Benefits

• Ensured System Reliability: Prevents system malfunction due to undervoltage conditions.
• Protection Against Data Corruption: Protects data from being corrupted during power fluctuations.
• Simplified System Design: Simplifies the design of power supply monitoring circuits.
• Extended Battery Life: Low supply current contributes to extended battery life in portable devices.
• Versatile Application: Suitable for a wide range of applications requiring voltage monitoring.

Additional Details

The MIC812TUY typically operates from a supply voltage range of 1.6V to 5.5V. The reset threshold voltage can be adjusted using external resistors. The reset output is an open-drain output, requiring a pull-up resistor. The device features a reset timeout period to ensure that the microprocessor or microcontroller has sufficient time to initialize after a reset event. It's important to consult the datasheet for specific reset threshold voltage options, reset timeout periods, and other detailed specifications.