The SGM811-SXKA4/TR is a precision voltage supervisor designed and manufactured by SG Micro Corp. Its primary function is to monitor the voltage level of a power supply and provide a reset signal to a microcontroller or other digital system when the voltage falls below a pre-defined threshold. This protects the system from operating with insufficient voltage, which can lead to data corruption, erratic behavior, or hardware damage.

Applications:

• Microprocessor/Microcontroller-Based Systems: Resets the system during power-up, power-down, or brownout conditions.
• Embedded Systems: Provides reliable voltage monitoring for critical applications.
• Battery-Powered Devices: Monitors battery voltage to prevent malfunction due to low power.
• Industrial Control Systems: Protects sensitive electronic components from voltage fluctuations.
• Automotive Electronics: Ensures safe and reliable operation in automotive applications.

Features:

• Precision Voltage Monitoring: Accurate monitoring of supply voltage with a factory-trimmed threshold.
• Active-Low Reset Output: Provides a reset signal when the voltage falls below the threshold.
• Open-Drain Output: Allows for flexible interfacing with various logic levels.
• Low Supply Current: Minimizes power consumption in battery-powered applications.
• Small Package: Available in a compact package for space-constrained designs.

Benefits:

• Prevents Data Corruption: Ensures proper system reset during voltage sags or power failures.
• Increases System Reliability: Monitors the supply voltage and provides a reset signal to maintain stable operation.
• Simplifies System Design: Integrates voltage monitoring functionality into a single IC, reducing component count.
• Extends Battery Life: Low current consumption makes it suitable for battery-powered applications.
• Cost-Effective: Provides reliable voltage monitoring at a competitive price.

Additional Details:

The SGM811 series offers a range of threshold voltages to accommodate different system requirements. The active-low reset output is compatible with most microcontrollers and digital systems. The open-drain output requires a pull-up resistor. For detailed specifications, including threshold voltage accuracy, response time, and operating temperature range, please refer to the manufacturer's datasheet. The SGM811-SXKA4/TR is a robust and reliable voltage supervisor suitable for a wide range of applications where voltage monitoring is critical.