The R3111N361A-TR is a voltage detector IC manufactured by Ricoh. It functions as a voltage monitoring device, triggering a reset signal when the input voltage falls below a predetermined threshold. This prevents systems from operating under insufficient voltage, which can lead to malfunction or data corruption. It is commonly employed in various electronic applications to ensure stable and reliable performance.

Applications

• Microcontroller reset circuits
• Power management systems
• Battery voltage monitoring
• CPU voltage supervision
• Real-time clock (RTC) backup
• Overvoltage protection

Features

• High-accuracy voltage detection: Precise monitoring of supply voltage.
• Low current consumption: Minimizes power drain, essential for battery-operated devices.
• Hysteresis: Prevents output oscillation due to noise.
• Compact package: Facilitates space-saving designs.
• Open drain output: Flexible interfacing with various logic levels.
• Wide operating temperature range: Operates reliably in diverse environments.

Benefits

• Protects against system failures: Prevents malfunctions and data loss due to undervoltage.
• Extends battery life: Low power consumption maximizes runtime.
• Ensures reliable operation: Stable reset signal prevents erratic behavior.
• Simplifies circuit design: Easy integration with existing systems.
• Reduces component count: Integrated functionality minimizes external components.

Technical Specifications

The R3111N361A-TR features a specific detection voltage (typically around 3.6V, confirm with the datasheet). It operates with low supply current, typically in the microampere range. The hysteresis feature mitigates unwanted triggering caused by voltage fluctuations. The output configuration is N-channel open drain. The IC operates within a standard industrial temperature range (e.g., -40°C to +85°C). The "-TR" suffix signifies Tape and Reel packaging. Refer to the official Ricoh datasheet for detailed electrical characteristics, package information, and application notes.