The S-T111B25MC-OGK-TF is a voltage detector IC produced by SII Semiconductor Corporation. This device monitors input voltage levels and provides a reset signal when the voltage falls below a specific threshold. This functionality is crucial for maintaining the integrity and stability of electronic systems, particularly those involving microcontrollers and other sensitive components. By detecting undervoltage conditions, the S-T111B25MC-OGK-TF prevents erroneous operation and potential damage.

Applications

• Microcontroller Reset Circuits: Ensures proper initialization and prevents unpredictable behavior during power-up or voltage drops.
• Power Supply Monitoring: Detects undervoltage conditions in power supplies, preventing damage to connected devices.
• Battery-Powered Devices: Protects batteries from deep discharge, extending battery life and preventing damage.
• System Supervisory Circuits: Provides a reliable reset signal for system-level monitoring and fault detection.
• Industrial Control Systems: Monitors critical voltage rails in industrial equipment to ensure safe and reliable operation.

Features

• Precise Detection Voltage: Accurately monitors voltage levels with a detection voltage of 2.5V.
• Ultra-Low Current Consumption: Minimizes power drain, making it suitable for battery-powered applications.
• Small Package Size: Compact SOT-23 package allows for easy integration into space-constrained designs.
• Open-Drain Output: Flexible output configuration for compatibility with various microcontroller interfaces.
• Operating Temperature Range: Wide operating temperature range suitable for industrial and commercial applications.
• Hysteresis: Prevents oscillations near the detection threshold, ensuring stable reset operation.

Benefits

• Ensures Stable System Operation: Prevents data corruption and system crashes due to voltage fluctuations.
• Protects Against Deep Discharge: Extends battery life by preventing over-discharge of batteries.
• Simplifies System Design: Provides a cost-effective and easy-to-implement voltage monitoring solution.
• Improves System Reliability: Reduces the risk of malfunction caused by undervoltage conditions.
• Reduces Power Consumption: Minimizes power drain in low-power applications, prolonging battery life.

Additional Details

The S-T111B25MC-OGK-TF features a precise detection voltage of 2.5V. It utilizes an N-channel open-drain output configuration. The device is housed in a small SOT-23 package, allowing for easy integration into compact electronic devices. Its ultra-low current consumption is critical for maximizing battery life in portable applications. The built-in hysteresis prevents false triggering of the reset signal due to noise or minor voltage fluctuations. This device is designed for applications where precise voltage monitoring and a reliable reset signal are essential.

This voltage detector provides a reliable and efficient solution for monitoring voltage levels and ensuring stable operation in a wide range of electronic systems. Its low power consumption, small size, and precise detection voltage make it an ideal choice for battery-powered devices, industrial control systems, and other critical applications.