The R3111D301B-TR-FE is a voltage detector IC manufactured by Nisshinbo Micro Devices Inc. This IC is designed to monitor voltage levels and provide a reset signal when the voltage falls below a specified threshold. It's a crucial component in ensuring the proper operation of microcontrollers and other sensitive electronic circuits by preventing malfunctions due to voltage fluctuations.

Applications

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

Features

• High-accuracy detection voltage
• Low supply current
• Small package size
• Built-in hysteresis
• Open drain output
• Operating temperature range typically -40°C to +85°C

Benefits

• Prevents microcontroller malfunctions due to undervoltage
• Ensures reliable system operation
• Extends battery life in portable devices due to low current consumption
• Saves board space due to small package
• Reduces external components needed for reset circuitry
• Provides noise immunity with built-in hysteresis

Additional Details

The R3111D301B-TR-FE has a detection voltage of 3.0V. The built-in hysteresis prevents chattering during voltage transitions near the threshold. The open-drain output allows for flexible connection to various microcontroller input pins and enables wired-OR functionality. The low supply current minimizes power consumption, which is particularly important in battery-powered applications. The device typically comes in a small SOT-23 or similar surface-mount package. The 'TR' suffix likely indicates tape and reel packaging for automated assembly. The FE suffix might represent some custom characteristic. Detailed specifications, including the exact hysteresis voltage, supply current, and output characteristics, can be found in the Nisshinbo datasheet.