The R3111N302C-TR-F is a voltage detector IC manufactured by Ricoh. It is a crucial component for voltage monitoring, ensuring stable operation of systems by providing a reset signal when the input voltage drops below a predetermined threshold. This functionality protects sensitive electronic components and prevents malfunctions due to undervoltage conditions.

Applications

• Microcontroller (MCU) reset circuits for embedded systems
• Power supply monitoring in industrial control systems
• Battery voltage monitoring in portable devices
• Voltage supervision in automotive electronics
• Overvoltage and undervoltage protection circuits
• Real-time clock (RTC) power backup

Features

• High-accuracy voltage detection: Provides precise voltage monitoring for reliable system protection.
• Low quiescent current: Minimizes power consumption, crucial for battery-powered applications.
• Built-in hysteresis: Prevents output oscillation due to noise or voltage fluctuations.
• Small SOT-23 package: Enables compact PCB designs and efficient space utilization.
• Open drain output: Offers flexibility in interfacing with various logic circuits and voltage levels.
• Wide operating temperature range: Ensures stable performance in diverse environmental conditions.

Benefits

• Enhances system reliability: Protects against data corruption and system crashes caused by undervoltage.
• Extends battery life: Low power consumption allows for longer operation in battery-powered devices.
• Simplifies circuit design: Easy integration with microcontrollers and other electronic components.
• Reduces component count: Integrated functionality minimizes the need for external components.
• Improves system stability: Hysteresis prevents false triggering and ensures a clean reset signal.

Technical Specifications

The R3111N302C-TR-F features a detection voltage, typically around 3.0V (check the datasheet for the exact value). The "-TR" suffix indicates that it is supplied in tape and reel for automated assembly. The "-F" likely denotes a lead-free finish. It utilizes a SOT-23 package. The IC is designed to operate within a broad temperature range, usually from -40°C to +85°C. The output is an N-channel open drain configuration. Always refer to the official datasheet for detailed specifications and recommended operating conditions.