XC6123A225ER-G

Supervisors Overview

The XC6123A225ER-G is a CMOS voltage monitor manufactured by Torex Semiconductor, designed for supervising single-input power rails. It operates within a supply voltage range of 1.0 V to 6.0 V and features a fixed detection threshold of 2.25 V with ±2% accuracy. The device incorporates an integrated watchdog timer and offers configurable release delay times. It utilizes a low-power architecture with a typical static current of 5 µA and a working current of 12 µA. The output stage consists of an open-drain CMOS driver, suitable for direct interfacing with microprocessor reset lines in industrial and commercial applications.

Supervisors Feature Summary

• Integrates a watchdog timer function controllable via the EN/ENB pin for system reliability monitoring
• Features laser-trimmed detection voltage accuracy of ±2% across the operating temperature range
• Provides open-drain output compatible with various logic levels without external pull-up requirements
• Operates with ultra-low current consumption suitable for battery-powered and energy-efficient designs

Supervisors Applications

• Microprocessor system reset circuits requiring voltage supervision
• Watchdog timer implementations for embedded controller stability
• Battery backup switching systems for data retention protection
• Power failure detection mechanisms in portable electronic devices

Supervisors Procurement Notes

Verify the specific suffix ER-G against the manufacturer's latest datasheet to confirm package type and tape/reel specifications. Ensure compatibility with the target PCB footprint, as the USP-6C package dimensions differ from other variants in the series. Cross-reference the detection voltage code to confirm the 2.25 V threshold matches the design requirement before finalizing procurement orders.

Supervisors Selection Notes

Select this component when a precise 2.25 V threshold is required for single-channel voltage monitoring. The inclusion of a built-in watchdog timer makes it suitable for applications needing both power supervision and processor activity monitoring. Consider the open-drain output configuration for flexibility in interfacing with different logic families. Evaluate the 5 µA static current against total system power budgets for battery-operated constraints.

Supervisors Part Context

This part belongs to the XC6123 series of high-precision voltage detectors from Torex Semiconductor. The series is characterized by CMOS technology, offering low current consumption and high accuracy. Unlike the XC6121 or XC6122, the XC6123 variant specifically integrates a watchdog timer function, enhancing its utility in complex digital systems requiring robust fault recovery mechanisms.

Supervisors Replacement Considerations

Direct functional equivalents within the same series include XC6121A225ER-G (without watchdog), XC6122A225ER-G (with watchdog but different EN pin behavior), and XC6124A225ER-G. Verify that the replacement maintains the open-drain output and watchdog functionality if these are critical to the circuit design.