The R3112N281C-TR-F is a voltage detector IC manufactured by Ricoh Electronic Devices. It is specifically designed to monitor voltage levels and provide a reset signal to microcontrollers or other circuits when the voltage falls below a certain threshold. The "-TR-F" suffix indicates that the component comes in tape and reel packaging for automated assembly and is lead-free.

Applications

• Microcontroller Reset Circuits: Ensures a clean and reliable reset of microcontrollers during power-up or brown-out conditions.
• Power Supply Monitoring: Monitors the output voltage of power supplies, signaling if the voltage falls outside the acceptable range.
• Battery-Powered Devices: Prevents deep discharge of batteries by shutting down the device when the battery voltage is low.
• System Monitoring: General voltage monitoring in various electronic systems to maintain stable operation.

Features

• High-Accuracy Detection Voltage: Provides accurate and reliable voltage monitoring.
• Low Supply Current: Minimizes power consumption, crucial for battery-powered devices.
• Small Package Size: Allows for compact and space-efficient designs.
• Built-in Hysteresis: Prevents output oscillation and provides stable switching.
• Tape and Reel Packaging: Facilitates automated assembly processes.
• Lead-Free: Complies with environmental regulations.

Benefits

• Enhanced System Reliability: Protects circuits from voltage fluctuations and brown-out conditions, improving overall system reliability.
• Data Integrity: Prevents data corruption in memory devices due to low voltage.
• Extended Battery Life: Low power consumption contributes to longer battery life in portable devices.
• Simplified Design: Integrated features simplify circuit design and reduce the number of required external components.
• Cost-Effective Solution: Provides a reliable and cost-effective solution for voltage monitoring.

Additional Details

The R3112N281C-TR-F often requires a pull-up resistor on its output due to its open-drain configuration. The specific voltage detection threshold is available in the datasheet and should be chosen according to the application's needs. It's important to consider the operating temperature range and other electrical characteristics to ensure proper performance. It's used in numerous electronic devices where consistent and dependable voltage monitoring is essential to prevent failures and ensure stable operation.