The S-8051ANR-NB-T1 is a voltage detector IC produced by SII Semiconductor Corporation. Its primary function is to monitor the supply voltage and generate a reset signal when the voltage falls below a predetermined threshold. This is vital for preventing erratic behavior and ensuring stable operation of microcontrollers and other sensitive electronic components in various applications.

Applications

• Microcontroller Reset Circuits: Provides a reliable reset signal for microcontrollers during power-up, power-down, or brownout conditions.
• Power Supply Monitoring: Detects undervoltage conditions in power supplies, protecting connected devices from damage.
• Battery-Powered Devices: Monitors battery voltage to prevent deep discharge and extend battery life.
• Industrial Control Systems: Provides a failsafe mechanism by detecting voltage fluctuations and triggering appropriate responses.
• Consumer Electronics: Ensures stable operation in devices like smartphones, tablets, and other portable electronics.

Features

• High-Precision Voltage Detection: Offers accurate voltage detection with minimal tolerance.
• Ultra-Low Current Consumption: Minimizes power consumption, making it suitable for battery-powered applications.
• Small Package Size: Available in compact packages like SOT-23 for space-constrained designs.
• Built-in Hysteresis: Prevents oscillations and ensures reliable reset operation.
• Open Drain Output: Provides flexibility in connecting to various digital circuits.

Benefits

• Improved System Reliability: Prevents system malfunctions caused by voltage drops.
• Extended Battery Life: Low current consumption contributes to longer battery life in portable devices.
• Simplified Circuit Design: Reduces the number of components needed for voltage monitoring.
• Data Protection: Resets the microcontroller before data corruption can occur during voltage drops.
• Enhanced System Stability: Provides stable and reliable operation, even with fluctuating voltage levels.

The S-8051ANR-NB-T1 is a voltage detector with a detection voltage around 5.1V. The exact threshold voltage is found in the product datasheet. It features extremely low current consumption, typically in the microampere range. The standard packaging option is SOT-23. It has a typical operating temperature range of -40°C to +85°C. The output type is generally an N-channel open drain configuration. The hysteresis is usually around 0.2V, but specific values should be verified. It's compliant with RoHS standards. An external pull-up resistor is often required depending on the connected circuit. It offers reliable voltage supervision for embedded systems and other electronic applications.