The XCS621B272DRN is a CMOS voltage detector manufactured by Torex Semiconductor Ltd. These detectors are designed to monitor voltage levels in electronic circuits and provide a reset signal when the voltage falls below a specified threshold. These devices are characterized by their low current consumption and high accuracy, making them suitable for a wide variety of applications. The DRN package refers to a SOT-25 package.

Applications:

• Microprocessor reset circuits
• Battery monitoring
• Power management systems
• Voltage monitoring in electronic devices
• System reset during power failure
• Portable devices
• Automotive applications

Features:

• Low Current Consumption: Minimizes power drain on the battery or power supply.
• High Accuracy: Provides a precise voltage detection threshold.
• Small Package Size: The SOT-25 package allows for compact designs.
• Wide Operating Voltage Range: Operates over a broad range of input voltages.
• Open Drain Output: Simplifies interfacing with microcontrollers and other digital circuits.
• Hysteresis: Built-in hysteresis prevents oscillation during voltage transitions.
• Temperature Stability: Maintains stable performance over a wide temperature range.

Benefits:

• Improved System Reliability: Prevents system malfunction due to low voltage conditions.
• Extended Battery Life: Low current consumption extends battery life in portable devices.
• Simplified Design: Easy to integrate into existing circuits.
• Cost-Effective: Provides a cost-effective solution for voltage monitoring.
• Enhanced System Protection: Protects sensitive components from damage due to undervoltage conditions.
• Stable Performance: Ensures consistent performance over temperature variations.

Additional Details:

The XCS621B272DRN typically operates with a supply voltage range of 1.5V to 5.5V. The ‘272’ in the part number indicates a detection voltage of 2.72V. The device features an open drain output, requiring an external pull-up resistor. The detection voltage accuracy is typically within a few percent. The operating temperature range is typically -40°C to +85°C. The datasheet for the XCS621 series contains detailed specifications and application information. The device is lead-free and RoHS compliant.