The XC61AN3902TB is a voltage detector IC manufactured by Torex Semiconductor Ltd. It's designed to monitor voltage levels in electronic circuits and trigger a reset signal when the voltage drops below a certain threshold. This ensures that the system operates within safe voltage limits, preventing data corruption or malfunction.

Applications

• Microcontroller Reset Circuits: Used to reset microcontrollers when the supply voltage drops below the operating voltage.
• Power Monitoring Systems: Monitors the voltage level of power supplies and generates an alert when the voltage is out of range.
• Battery-Powered Devices: Monitors battery voltage to prevent deep discharge and extend battery life.
• CPU Reset Circuits: Ensures that the CPU is reset properly during power-up or brownout conditions.
• Industrial Control Systems: Monitors critical voltage levels in industrial equipment.

Features

• High Accuracy: Precise voltage detection threshold for reliable operation.
• Low Power Consumption: Minimizes power drain, suitable for battery-powered applications.
• Small Package: Compact package size for space-constrained applications.
• Built-in Hysteresis: Prevents chattering around the threshold voltage.
• Open Drain Output: Flexible output configuration for various system designs.

Benefits

• Improved System Reliability: Protects the system from voltage fluctuations and brownouts.
• Prevention of Data Corruption: Ensures data integrity by resetting the system during low voltage conditions.
• Extended Battery Life: Low power consumption helps to extend the operating time of battery-powered devices.
• Simplified System Design: Integrated functions reduce the need for external components.
• Cost-Effective Solution: Provides reliable voltage monitoring at a competitive price.

Additional Details

The XC61AN3902TB has a detection voltage of 3.9V. It features a built-in hysteresis to prevent false triggering due to noise or minor voltage fluctuations. The output is an N-channel open drain output, which requires an external pull-up resistor. The operating temperature range is typically -40°C to +85°C. The package type is SOT-23 or similar small surface mount package. The supply voltage range is typically 1.6V to 6.0V. The extremely low power consumption characteristic prolongs battery life for battery-powered applications. It is commonly used in applications that require precise voltage monitoring and reset functionality for microcontrollers and other sensitive electronic components.