The R3112D221C-TR-F is a voltage detector IC manufactured by Ricoh. It is designed to monitor voltage levels and generate a reset signal when the voltage drops below a pre-defined threshold, ensuring the reliable operation of microcontrollers and other voltage-sensitive components.

Applications

• Microcontroller reset circuits
• Power supply voltage monitoring
• Battery-powered devices
• Industrial control systems
• Portable electronic devices

Features

• High-accuracy detection voltage: 2.2V
• Low supply current
• Small package size: SOT-23-5
• Built-in hysteresis
• CMOS output
• Operating temperature range: -40°C to +85°C

Benefits

• Reliable voltage detection: High-accuracy detection ensures proper system reset during undervoltage conditions, preventing malfunctions.
• Long battery life: Low current consumption minimizes power drain, extending battery life in portable applications.
• Compact design: Small SOT-23-5 package saves board space in miniature devices.
• Stable operation: Built-in hysteresis prevents oscillations and ensures stable reset signal.
• Easy interfacing: CMOS output allows direct connection to microcontroller inputs.
• Robust performance: Wide operating temperature range guarantees reliable operation in various environments.

The R3112D221C-TR-F offers a detection voltage of 2.2V. It provides a CMOS output, which simplifies interfacing with digital circuits. The device's low supply current and compact size make it well-suited for battery-powered applications where power efficiency and board space are critical. The integrated hysteresis adds stability by preventing unwanted oscillations. It is supplied in a SOT-23-5 package. The R3112 series offers different detection voltage options; therefore, the specific part number must be considered when designing a system.