The R5480K324CL-TR is a voltage detector IC manufactured by Nisshinbo Micro Devices Inc. It's designed to monitor voltage levels in electronic circuits and provide a reset signal when the voltage drops below a specific threshold. This is essential for protecting microcontrollers and other sensitive components from damage caused by undervoltage conditions.

Applications

• Microcontroller Reset Circuits: Used to ensure proper microcontroller startup after a power failure or brownout.
• Power Monitoring in Battery-Powered Devices: Detects low battery conditions to prevent data corruption and ensure proper shutdown.
• System Power-On Reset: Generates a reset signal during power-up to initialize system components correctly.
• Voltage Monitoring in Industrial Equipment: Protects sensitive electronics from voltage fluctuations and power supply issues.
• Portable Electronic Devices: Used in smartphones, tablets, and other portable devices for voltage monitoring and reset functionality.

Features

• Low Supply Current: Minimizes power consumption, making it suitable for battery-powered applications.
• High-Accuracy Detection Voltage: Ensures precise voltage monitoring and reliable reset signal generation.
• Built-in Hysteresis: Prevents oscillation and improves noise immunity.
• Small Package Size: Allows for compact circuit designs.
• Open Drain Output: Provides flexibility in connecting to various microcontroller or system interfaces.

Benefits

• Protection Against Undervoltage Conditions: Prevents malfunctioning and damage to connected devices by issuing a reset signal during voltage drops.
• Improved System Reliability: Ensures proper initialization and operation of electronic circuits.
• Reduced Power Consumption: Extends battery life in portable applications due to its low current draw.
• Simplified Circuit Design: Integrated features reduce the need for external components.
• Enhanced Noise Immunity: Stable operation even in noisy environments.

Additional Details

The R5480K324CL-TR typically operates with a supply voltage range of 1.6V to 5.5V. The detection voltage is precisely set during manufacturing. The hysteresis is typically a few percent of the detection voltage. The output is an N-channel open drain, which requires a pull-up resistor. Its temperature range is usually between -40°C and +85°C.