The MIC810LUTR is a voltage monitor or voltage supervisor IC manufactured by Micrel, now part of Microchip Technology. This device is designed to monitor the power supply voltage of a system and provide a reset signal to the microcontroller or processor when the voltage falls below a specified threshold. The 'L' in the part number typically indicates a specific threshold voltage level.
Applications:
- Microcontroller-Based Systems: Provides a reliable reset signal to microcontrollers during power-up, power-down, or brownout conditions.
- Embedded Systems: Monitors the power supply voltage of embedded systems to prevent erratic behavior.
- Industrial Control Equipment: Ensures proper operation of industrial control systems by monitoring the power supply voltage.
- Automotive Electronics: Protects sensitive automotive electronics from voltage fluctuations.
- Consumer Electronics: Used in consumer electronics devices to ensure reliable operation and prevent data corruption.
Features:
- Precise Voltage Monitoring: Accurately monitors the power supply voltage for under voltage conditions.
- Factory-Set Threshold Voltage: Eliminates the need for external resistors to set the threshold voltage.
- Open-Drain Output: Provides a flexible interface to microcontrollers and other devices.
- Low Supply Current: Minimizes power consumption in battery-powered applications.
- Small Package: Compact package allows for use in space-constrained applications.
- Built-in Hysteresis: Prevents oscillations near the threshold voltage.
Benefits:
- Improved System Reliability: Prevents erratic behavior and data corruption due to voltage fluctuations.
- Simplified Design: Eliminates the need for external components to set the threshold voltage.
- Reduced Power Consumption: Low supply current extends battery life in portable applications.
- Cost-Effective Solution: Provides a reliable voltage monitoring solution at a low cost.
- Space-Saving Design: Small package allows for use in space-constrained applications.
Additional Details:
The MIC810LUTR features a precise internal voltage reference and comparator to accurately monitor the power supply voltage. When the voltage falls below the factory-set threshold, the open-drain output is asserted, providing a reset signal to the microcontroller. The output remains asserted until the voltage rises above the threshold plus the built-in hysteresis. It is crucial to consult the device's datasheet for definitive specifications on the threshold voltage, hysteresis, and timing characteristics, in addition to recommended application circuits.
