The XC61GN1802HRN is a voltage detector IC manufactured by Torex Semiconductor Ltd. It is designed to monitor power supply voltages and provide a reset signal to a microcontroller or other digital circuit when the voltage drops below a predetermined threshold. This specific model has a detection voltage of 1.8V.

Applications

• Microcontroller reset circuits
• Power failure detection
• Battery backup systems
• Portable electronic devices
• Industrial control systems

Features

• High-accuracy voltage detection
• Ultra-low current consumption
• Built-in hysteresis
• Compact SOT-25 package
• Open drain output

Benefits

• Ensures proper system initialization after a power interruption
• Prolongs battery life in portable devices
• Prevents false resets due to voltage noise
• Saves board space in compact designs
• Provides flexible interface to various digital circuits

Detailed Specs

The XC61GN1802HRN boasts a highly accurate detection threshold, typically ±1% of the nominal 1.8V. It features extremely low quiescent current consumption, typically in the microampere range, making it well-suited for battery-powered applications. The integrated hysteresis prevents unwanted oscillations or chattering of the reset signal when the supply voltage is near the detection threshold. The device is commonly available in a space-saving SOT-25 package. The open drain output allows for flexible interfacing with various microcontroller or microprocessor reset inputs. The operating temperature range is typically from -40°C to +85°C. The device functions by monitoring the input voltage and asserting a low-level reset signal when the voltage falls below 1.8V. Once the voltage rises above 1.8V plus the hysteresis voltage, the reset signal is released (pulled high via an external pull-up resistor).

This voltage detector provides essential protection for electronic systems by ensuring a reliable reset signal during voltage drops, preventing unpredictable behavior and potential data corruption.