The XC61CN1102PR is a voltage detector IC manufactured by Torex Semiconductor Ltd. It is designed to monitor the supply voltage and generate a reset signal when the voltage falls below a certain threshold. This IC is primarily used in microprocessor-based systems to ensure proper initialization and prevent erratic behavior during power-up or power-down sequences, as well as during voltage dips. It features a highly accurate detection voltage and ultra-low power consumption, making it suitable for battery-powered applications.

Applications

• Microprocessor Systems: Ensures proper initialization of microprocessors and microcontrollers.
• Battery-Powered Devices: Protects systems from undervoltage conditions in portable devices.
• Memory Backup Circuits: Monitors voltage to switch to backup power sources.
• Power Management Systems: Provides reset functionality in power management circuits.
• Industrial Control Equipment: Safeguards control systems from voltage fluctuations.

Features

• Voltage Monitoring: Continuously monitors the supply voltage.
• Reset Output: Generates a reset signal when the voltage drops below the threshold.
• High Accuracy: Provides a highly accurate detection voltage.
• Ultra-Low Power Consumption: Minimizes power consumption for energy-efficient operation.
• Hysteresis: Prevents false resets due to noise or minor voltage fluctuations.
• Open-Drain Output: Compatible with various logic levels.
• Small Package: Space-saving design for compact PCB layouts.

Benefits

• Prevents Data Corruption: Ensures data integrity by resetting the system during voltage drops.
• Improves System Reliability: Protects against erratic behavior caused by voltage fluctuations.
• Extends Battery Life: Minimizes power consumption for longer battery life.
• Simplifies Design: Reduces the need for external reset circuitry.
• Cost-Effective Solution: Provides a low-cost solution for system reset functionality.

Additional Details

The XC61CN1102PR operates with a supply voltage range typically between 1.6V and 5.5V. The detection voltage is preset at 1.1V, with high accuracy. The reset output is an open-drain configuration, requiring a pull-up resistor to the supply voltage. The hysteresis feature prevents the reset signal from oscillating when the supply voltage is near the threshold level. The device is available in a small SOT-25 package, making it suitable for space-constrained applications. Key specifications include reset delay time, power-supply rejection ratio, and operating temperature range. Its ultra-low current consumption makes it an ideal choice for battery-powered devices and other power-sensitive applications. The datasheet provides detailed information on the device's electrical characteristics, timing diagrams, and application examples. The internal circuitry is designed to provide stable and reliable operation over a wide range of temperature and voltage conditions. The reset pulse width can be adjusted by changing the value of the external pull-up resistor and load capacitor.