XC6124C731ER-G

Supervisors Overview

The XC6124C731ER-G is a high-precision voltage detector with watchdog functionality manufactured by Torex Semiconductor. It operates within a supply voltage range of 1.0 V to 6.0 V and features a fixed detection threshold of 3.1 V. The device utilizes an N-channel open-drain output configuration and provides a standard reset delay time of 50 ms. It incorporates a built-in watchdog timer with a timeout period of 50 ms, which can be controlled via the EN/ENB pin. The component is designed for surface-mount installation in a compact 6-USPC (1.8x2 mm) package.

Supervisors Feature Summary

• Integrates a watchdog timer function with ON/OFF control capability via the EN/ENB pin
• Provides high-precision voltage monitoring with internally fixed detection thresholds
• Features low current consumption suitable for battery-powered applications
• Includes a built-in delay circuit eliminating the need for external timing components

Supervisors Applications

• Microprocessor watchdog monitoring and reset circuits
• Memory battery backup circuits
• System power-on reset circuits
• Power failure detection systems

Supervisors Procurement Notes

Verify the specific suffix ER-G corresponds to the 6-USPC package and tape-and-reel packaging format. Confirm the detection voltage code matches the required 3.1 V threshold for the target application. Ensure compatibility with the specified operating temperature range of -40°C to +85°C. Cross-reference the manufacturer part number against official Torex Semiconductor documentation to validate revision status.

Supervisors Selection Notes

Select this component when a combined voltage supervisor and watchdog timer is required in a minimal footprint. The open-drain output allows for flexible interfacing with various logic levels. The internal pull-up or pull-down on the EN/ENB pin simplifies design by allowing the pin to remain open if the watchdog function is not actively controlled. Verify that the 50 ms reset delay meets the system's startup timing requirements.

Supervisors Part Context

This part belongs to the XC6121/XC6122/XC6123/XC6124 series of CMOS voltage detectors. The XC6124 variant specifically includes the watchdog function and ON/OFF control feature. The series uses laser trimming technology to ensure accurate detection voltages across the available range. These devices are categorized under PMIC supervisory circuits within the Torex product portfolio.

Supervisors Replacement Considerations

Direct substitutes within the same series include other XC6124 variants with different detection voltages or packages, such as XC6124C731MR-G for SOT-25-5 packaging. Generic replacements require matching the voltage threshold, output type, and watchdog functionality.