The MIC803-44D2VC3 is a precision voltage supervisor manufactured by Micrel (now Microchip Technology). This device is designed to monitor the voltage level of a power supply and provide a reset signal when the voltage falls below a specified threshold. It is commonly used in microprocessor-based systems to prevent erratic behavior and ensure reliable operation.

Applications:

• Microprocessor reset circuits
• Battery-powered systems
• Portable devices
• Power supply monitoring
• Industrial control systems

Features:

• Precision voltage monitoring
• Factory-trimmed reset threshold
• Active-low reset output
• Open-drain output
• Manual reset input
• Small SOT-23 package
• Low supply current

Benefits:

• Improved system reliability by preventing operation at low voltages
• Simplified reset circuitry with integrated functionality
• Precise voltage monitoring ensures accurate reset triggering
• Low power consumption extends battery life in portable devices
• Compact package saves board space

Additional Details:

The MIC803-44D2VC3 monitors the supply voltage and asserts a reset signal when the voltage falls below the factory-trimmed threshold. The reset output remains asserted until the supply voltage rises above the threshold and a reset timeout period has elapsed. The device features a manual reset input that allows for external triggering of the reset signal. The open-drain output requires a pull-up resistor. The MIC803-44D2VC3 is a reliable and cost-effective solution for power supply monitoring and reset generation. Its small size and low power consumption make it ideal for portable and battery-powered applications. Proper selection of the pull-up resistor is important to ensure proper operation of the reset output. The device is widely used in embedded systems to enhance system stability and prevent data corruption.