The S-80842CLUA-B63-T2 is a voltage detector IC manufactured by SII Semiconductor Corporation. It is designed to monitor the supply voltage and generate a reset signal when the voltage drops below a specific threshold. This functionality is crucial for ensuring stable operation and preventing data corruption in electronic devices.

Applications

• Microcontroller Reset Circuits: Used to provide a reliable reset signal to microcontrollers during power-up or brown-out conditions.
• CPU Reset Circuits: Ensures that CPUs start in a defined state after power is applied or after a voltage drop.
• Power Supply Monitoring: Monitors the output voltage of power supplies, triggering an alarm or shutdown if the voltage is outside the specified range.
• Battery-Powered Devices: Protects battery-powered devices by shutting down when the battery voltage is too low, preventing deep discharge.
• Industrial Control Systems: Monitors voltage levels in industrial equipment, providing a safety mechanism against voltage fluctuations.

Features

• Low Voltage Detection: Detects when the input voltage falls below a predetermined threshold (likely 4.2V based on the '42' in the part number).
• High-Precision Detection Voltage: Offers accurate voltage detection for reliable monitoring and reset functionality.
• Low Current Consumption: Minimizes power consumption, making it ideal for battery-powered applications.
• Built-in Hysteresis: Prevents false triggering due to noise or voltage fluctuations.
• Open-Drain Output: Allows for flexible connection to various logic circuits.

Benefits

• Improved System Reliability: Ensures stable operation by resetting the system during voltage drops, preventing data corruption and malfunctions.
• Data Protection: Protects data by initiating a safe shutdown during power failures or brown-out conditions.
• Extended Battery Life: Low current consumption contributes to longer battery life in portable devices.
• Simplified Design: Integrates the voltage detection function into a single chip, simplifying circuit design.
• Cost-Effective Solution: Provides a cost-effective solution for voltage monitoring and reset generation.

Additional Details

The S-80842 series voltage detectors are available in various package options. The detection voltage is fixed and determined by the part number (4.2V). The output is typically an open-drain NMOS transistor, requiring an external pull-up resistor. CLUA likely refers to the package type. B63 could be a production lot code. T2 indicates tape and reel packaging.