The XC61AC3502PR is a voltage detector IC manufactured by Torex Semiconductor Ltd. It is designed to monitor power supply voltages in electronic circuits and provide a reset signal when the voltage drops below a specified threshold. This ensures the system operates safely and reliably by preventing malfunctions due to undervoltage conditions.

Applications

• Microcontroller reset circuits
• CPU reset circuits
• Power monitoring in battery-powered devices
• Voltage monitoring in power supplies
• System reset in embedded systems

Features

• Highly Accurate Detection Voltage: Ensures precise voltage monitoring.
• Low Supply Current: Minimizes power consumption, suitable for battery-powered applications.
• Hysteresis: Prevents chattering around the threshold voltage.
• Small Package: Space-saving design for compact devices.
• CMOS Technology: Provides stable operation and low noise.
• Built-in Delay Circuit: Offers a fixed or adjustable delay time for the reset signal.

Benefits

• Improved System Reliability: Prevents system crashes due to undervoltage.
• Extended Battery Life: Low current consumption maximizes operational time in portable devices.
• Simplified Circuit Design: Integrated functions reduce the need for external components.
• Reduced Board Space: Compact package allows for smaller and more efficient designs.
• Stable Performance: CMOS technology ensures consistent and reliable operation across a wide range of temperatures.

Additional Details

The XC61AC3502PR features a detection voltage of 3.5V. It typically operates with a supply voltage range of 1.6V to 6.0V. The output is an N-channel open drain output, which requires an external pull-up resistor. The IC is available in a small SOT-25 package. This voltage detector includes a built-in delay circuit. The hysteresis characteristic helps to prevent false resets due to minor voltage fluctuations, providing a stable and reliable reset signal to the connected microcontroller or other digital circuits. This is particularly important in noisy environments where voltage levels may experience transient dips. Proper decoupling and layout techniques are essential to ensure optimal performance and minimize the impact of external noise. The device is RoHS compliant.