The MIC803-44D4VC3TR is a precision voltage supervisory circuit manufactured by Micrel (now Microchip Technology). This device is designed to monitor the supply voltage of microprocessors, microcontrollers, and digital systems. It provides a reset signal when the supply voltage drops below a specified threshold, ensuring proper system operation. The MIC803-44D4VC3TR offers a high degree of accuracy and reliability, making it suitable for critical applications.

Applications

• Microprocessor and microcontroller systems: Providing reset signals during power-up and power-down.
• Digital signal processors (DSPs): Monitoring supply voltage and preventing data corruption.
• Embedded systems: Ensuring proper system initialization and operation.
• Portable devices: Smartphones, tablets, and laptops.
• Automotive electronics: Power management in automotive systems.
• Industrial control systems: Monitoring supply voltage and preventing system failures.

Features

• Precision voltage monitoring: Accurate detection of undervoltage conditions.
• Fixed reset threshold: Provides a defined voltage level for reset activation.
• Active-low reset output: Compatible with most microprocessor and microcontroller systems.
• Small package size: Allows for compact system designs.
• Low power consumption: Minimizes current draw and extends battery life in portable devices.
• RoHS compliant: Meets environmental standards for hazardous substances.

Benefits

• Ensured system reliability: Prevents data corruption and ensures proper system operation.
• Simplified system design: Reduces the need for external components.
• Compact integration: Enables use in space-constrained applications.
• Low power operation: Extends battery life in portable devices.

Additional Details

The MIC803-44D4VC3TR has a fixed reset threshold voltage, as indicated by the "44" in the part number, typically around 4.38V. This means that the reset output will be asserted when the supply voltage drops below this level. The reset output is active-low, meaning it will be low during a reset condition and high during normal operation. The device's small package size allows for easy integration into compact designs. The MIC803-44D4VC3TR typically operates with a supply voltage range of 1.6V to 5.5V. Its low power consumption makes it suitable for battery-powered devices. The device is widely used in various electronic systems, including microprocessors, microcontrollers, DSPs, and embedded systems, to ensure reliable and stable operation.