The S-80940ANMP-DD4-T2 is a voltage detector IC manufactured by SII Semiconductor Corporation. It is designed to monitor the supply voltage in electronic circuits and generate a reset signal when the voltage drops below a specific threshold. This functionality is crucial for preventing malfunctions, data corruption, and ensuring the proper operation of microcontrollers and other sensitive components.

Applications

• Microcontroller Reset Circuits: Provides a reliable reset signal during power-up, power-down, or voltage drop conditions, ensuring proper initialization of the microcontroller.
• Memory Protection: Protects data in memory devices by initiating a write-protect function when the voltage is unstable, preventing data corruption.
• Battery-Powered Devices: Monitors battery voltage and triggers shutdown procedures to prevent deep discharge and extend battery life.
• Power Management Systems: Supervises voltage levels in various power rails of electronic systems, generating alerts or shutdown signals in case of voltage irregularities.
• Industrial Control Equipment: Provides reliable voltage monitoring for critical control circuits in industrial applications.

Features

• Detection Voltage: 4.0V (typical)
• High Accuracy Detection Voltage: Ensures accurate and reliable voltage monitoring.
• Low Current Consumption: Minimizes the impact on the overall power budget of the system, making it suitable for battery-powered devices.
• Small Package: SOT-23-3 package allows for compact and space-saving circuit designs.
• Wide Operating Temperature Range: Operates reliably over a wide temperature range, making it suitable for various environments.
• Built-in Hysteresis: Prevents output chattering or oscillations around the threshold voltage, ensuring stable operation.
• N-channel Open Drain Output: Provides flexible interfacing options with various logic levels.

Benefits

• Enhanced System Reliability: Prevents system malfunctions and ensures stable operation even under voltage fluctuations or drops.
• Data Integrity: Protects data in memory devices from corruption due to unstable voltage conditions.
• Extended Battery Life: Optimizes power consumption in battery-powered devices by initiating appropriate shutdown procedures.
• Simplified Circuit Design: Integrates voltage monitoring functionality into a single chip, simplifying the overall circuit design.
• Reduced System Cost: Eliminates the need for discrete voltage monitoring components, reducing the overall system cost.

Additional Details

The S-80940ANMP-DD4-T2 features an N-channel open-drain output, requiring an external pull-up resistor for proper operation. The built-in hysteresis ensures stable output behavior and prevents rapid toggling when the input voltage is near the threshold. The SOT-23-3 package allows for space-saving designs. Its low current consumption contributes to efficient operation in energy-sensitive applications. This voltage detector IC provides a dependable solution for safeguarding electronic systems from voltage irregularities and ensuring reliable performance.