The XC61CC0902MRN is a voltage detector IC from Torex Semiconductor, designed to monitor power supply voltages in electronic devices. When the input voltage drops below a predefined threshold, it asserts a reset signal, protecting downstream components from malfunctioning due to undervoltage conditions. It’s a crucial component in embedded systems and battery-powered devices where stable voltage is critical.

Applications

• Microcontroller Reset Circuits: Provides a reliable reset signal for microcontrollers during power-up or voltage drops.
• Battery-Powered Devices: Monitors battery voltage to prevent deep discharge and potential damage.
• Power Supply Monitoring: Detects undervoltage conditions in power supplies to protect connected loads.
• Embedded Systems: Ensures stable operation of embedded systems by monitoring the supply voltage.
• Industrial Control Systems: Safeguards sensitive components from voltage fluctuations in industrial environments.

Features

• Accurate Voltage Detection: Precisely monitors the input voltage against a predetermined threshold.
• Low Quiescent Current: Minimizes power consumption, extending battery life in portable applications.
• Small Package Size: Allows for easy integration into compact electronic devices.
• Open Drain Output: Provides flexibility in interfacing with various logic circuits.
• Hysteresis: Prevents oscillations and ensures stable operation even with noisy input voltages.

Benefits

• Prevents System Malfunctions: Protects against data corruption and system crashes caused by undervoltage.
• Extends Battery Life: Low power consumption contributes to longer operating times for battery-powered devices.
• Simplifies Circuit Design: Reduces the need for external components in voltage monitoring circuits.
• Enhances System Reliability: Ensures stable and predictable operation of electronic devices.
• Protects Sensitive Components: Prevents damage to downstream components from undervoltage conditions.

The XC61CC0902MRN has a detection voltage of 0.9V. This particular variant features an open drain output configuration. It operates with a very low quiescent current, making it suitable for low-power applications. Hysteresis is incorporated to provide a clean reset signal, preventing false triggering due to noise or minor voltage fluctuations. It is commonly packaged in small form factor packages like SOT-25.

This device provides a cost-effective and reliable solution for voltage monitoring in a wide range of applications. Its combination of accuracy, low power consumption, and small size makes it a popular choice for both new designs and existing systems requiring enhanced voltage supervision.