The S-81228SG is a voltage detector manufactured by SII Semiconductor Corporation. It is designed to monitor voltage levels in electronic circuits and provide a reset signal when the voltage drops below a certain threshold. This ensures that the system operates correctly and prevents data corruption or malfunctions due to voltage fluctuations.

Applications

• Microcontroller reset circuits
• CPU reset circuits
• Power management systems
• Battery-powered devices
• Industrial control equipment

Features

• High-accuracy detection voltage
• Ultra-low current consumption
• Hysteresis characteristics
• Built-in delay circuit
• Small package size

Benefits

• Improved system reliability: Prevents erroneous operation by resetting the system during undervoltage conditions.
• Extended battery life: Low current consumption minimizes drain on the power source.
• Stable operation: Hysteresis prevents chattering at the threshold voltage.
• Simplified circuit design: Integrated delay circuit eliminates the need for external components.
• Compact design: Small package allows for use in space-constrained applications.

Additional Details

The S-81228SG features a detection voltage that's precisely calibrated to trigger a reset signal when the input voltage falls below a defined threshold. The hysteresis characteristic contributes to stable operation by preventing the output from oscillating near the threshold. The built-in delay circuit ensures a stable reset signal before the system resumes operation.

This voltage detector is particularly well-suited for applications where stable and reliable power monitoring is critical. Its combination of high accuracy, low power consumption, and integrated features makes it a valuable component in a wide range of electronic systems.