XC6122C238ER-G

Supervisors Overview

The XC6122C238ER-G is a high-precision voltage detector with a watchdog function manufactured by Torex Semiconductor. It operates within a supply voltage range of 1 V to 6 V and features a fixed threshold voltage of 3.9 V. The device utilizes CMOS process technology and provides an open-drain or open-collector output type. It includes a built-in delay circuit for release signals, eliminating the need for external components. The IC is housed in a compact 6-USPC (1.8x2) package and supports operation across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Integrates a watchdog timer function alongside voltage detection capabilities within a single CMOS chip.
• Features an EN/ENB pin that allows independent control over the watchdog function while keeping the voltage detector active.
• Provides a low-active output signal upon detection of voltage anomalies without requiring external timing components.
• Designed for low current consumption to support battery-powered applications.

Supervisors Applications

• Portable electronic devices requiring reliable power supervision
• Battery-operated systems needing watchdog protection against software faults
• Embedded controllers monitoring main supply rails

Supervisors Procurement Notes

Verify the specific threshold voltage code matches the design requirement, as the XC6122 series offers various fixed options. Confirm the package variant corresponds to the 6-USPC footprint. Ensure compatibility with the system's operating voltage range of 1 V to 6 V. Check RoHS compliance status if required by regional regulations. Validate the EN/ENB pin configuration for proper watchdog enablement logic.

Supervisors Selection Notes

Select this component when both voltage monitoring and watchdog functionality are required in a minimal footprint. The fixed 3.9 V threshold suits applications where this specific level triggers reset conditions. Consider the open-drain output for flexible interfacing with different logic levels. The low quiescent current makes it suitable for energy-efficient designs compared to higher-power supervisor alternatives.

Supervisors Part Context

This part belongs to the XC6121/XC6122/XC6123/XC6124 series from Torex Semiconductor. These series share similar architectures but differ in threshold voltages and specific feature sets like manual reset availability. The XC6122 variant specifically integrates the watchdog function with an enable pin for selective deactivation, distinguishing it from basic voltage detectors in the same family.

Supervisors Replacement Considerations

Cross-reference with other XC6122 series parts for different threshold voltages if the 3.9 V setting is unsuitable. Verify pinout compatibility with existing PCB layouts before substituting with other manufacturers' watchdog supervisors.