The R3130N28EA-TR-FB is a voltage detector IC manufactured by Ricoh. This integrated circuit is designed to monitor voltage levels in electronic circuits and provide a reset signal when the voltage drops below a specific threshold. This functionality is crucial for ensuring system stability and preventing data corruption in various applications.

Applications

• Microcontroller reset circuits
• Power management systems
• Battery-powered devices
• Industrial control systems
• Consumer electronics

Features

• High-accuracy detection voltage: The R3130N28EA-TR-FB offers precise voltage detection, ensuring reliable reset operation.
• Low supply current: This IC features low current consumption, making it suitable for battery-powered applications and minimizing power waste.
• Small package: Available in compact packages such as SOT-23, allowing for space-saving designs on printed circuit boards.
• Built-in hysteresis: Hysteresis prevents chattering or oscillation of the reset signal when the input voltage is near the threshold, ensuring a clean and stable reset.
• Open drain output: The open drain output provides flexibility in connecting to various microcontrollers and logic circuits. It requires an external pull-up resistor.

Benefits

• Prevents system malfunction: By detecting voltage drops and providing a reset signal, the IC protects against erroneous operation caused by insufficient power supply.
• Ensures data integrity: Resetting the microcontroller during undervoltage conditions helps prevent data corruption in memory and registers.
• Extends battery life: Low current consumption contributes to longer battery life in portable and battery-operated devices.
• Simplifies circuit design: The integrated reset functionality reduces the need for external components and complex circuitry.
• Improves system reliability: Accurate voltage monitoring and reset generation enhance the overall reliability and stability of electronic systems.

Additional Details

The specific detection voltage of the R3130N28EA-TR-FB is 2.8V. It typically comes in a small SOT-23 package for surface mount assembly. The operating temperature range usually spans from -40°C to +85°C, making it suitable for various industrial and consumer applications. The 'TR' in the part number indicates that the component is supplied on Tape and Reel for automated assembly processes. Consult the official datasheet for detailed electrical characteristics, timing diagrams, and application notes to ensure proper usage and integration into the target system. Proper decoupling capacitors should be used near the power supply pins to ensure stable and accurate voltage detection.