The R5550K001A-TR 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 drops below a certain threshold. It's commonly used in microcontroller-based systems and other electronic devices to ensure proper operation and prevent data corruption in the event of a power supply fluctuation or failure. The "TR" suffix usually indicates that the part is provided in tape and reel packaging for automated assembly.

Applications

• Microcontroller Reset Circuits: Resets the microcontroller when the power supply voltage drops below a safe level.
• Memory Protection: Prevents data corruption in memory devices during power failures.
• System Monitoring: Monitors the power supply voltage of critical systems.
• Battery-Powered Devices: Ensures proper operation and prevents deep discharge of batteries.
• Automotive Electronics: Monitors the battery voltage in automotive systems.

Features

• Precise Detection Voltage: Accurately detects when the voltage drops below the specified threshold.
• Low Supply Current: Minimizes power consumption in battery-powered applications.
• Small Package: Available in compact packages for space-constrained applications.
• Hysteresis: Prevents oscillations during voltage fluctuations.
• Open Drain Output: Provides flexibility in connecting to different circuits.
• Tape and Reel Packaging: Suitable for automated assembly processes.

Benefits

• Reliable Reset Function: Ensures proper system reset in the event of a power supply failure.
• Low Power Consumption: Extends battery life in portable devices.
• Compact Size: Saves space on the printed circuit board.
• Improved System Stability: Prevents erratic behavior due to voltage fluctuations.
• Easy to Use: Simple to integrate into existing circuits.

Additional Details

The R5550K001A-TR voltage detector IC typically has a detection voltage of 4.4V or 4.5V (this is just an example, it would vary depending on the actual part number). The supply voltage range is typically from 1.6V to 5.5V. The detection accuracy is typically ±1% or ±2%. The operating temperature range is typically from -40°C to +85°C or -40°C to +125°C. The output type is typically N-channel open drain. The package types commonly used are SOT-23, SC-82AB, or DFN. The reset timeout period is typically in the range of 100ms to 200ms. The supply current is very low, typically in the order of microamps (µA). This device is RoHS compliant.