The Ricoh R3112Q271A-TR-F is a voltage detector IC designed to monitor power supply voltage and generate a reset signal when the voltage drops below a pre-determined threshold. This critical function safeguards microcontrollers and other digital circuits against erratic behavior or damage caused by undervoltage conditions. Manufactured by Ricoh, it is well-regarded for its accuracy, low power consumption, and compact design.

Applications

• Microcontroller reset circuits
• Power management systems in battery-powered applications
• Voltage monitoring in automotive electronics
• Industrial control systems requiring reliable power supply monitoring
• Consumer electronics devices

Features

• High-precision voltage detection
• Low supply current
• Small SOT-23 package
• Built-in hysteresis for noise immunity
• Open-drain output for flexible system integration

Benefits

• Ensures stable system operation by preventing malfunctions during voltage dips or brown-outs
• Maximizes battery life in portable devices due to minimal power consumption
• Enables miniaturization of electronic products
• Reduces the risk of false resets due to voltage noise
• Offers versatility in interfacing with different microcontroller architectures

Additional Details

The R3112Q271A-TR-F features a detection voltage of 2.7V. The 'TR' designation indicates that the device is supplied on tape and reel for automated assembly processes. The 'F' likely represents a specific factory or production lot code. The IC typically operates over a wide temperature range. The open-drain output requires an external pull-up resistor to define the high-level output voltage. This voltage detector provides a reliable and cost-effective solution for voltage monitoring and reset generation in various electronic systems. Its small size and low power consumption make it particularly suitable for portable and battery-operated equipment.