XC6122C338MR-G

Supervisors Overview

The XC6122C338MR-G is a high-precision voltage monitor manufactured by Torex Semiconductor, designed for single-input supervision within the XC6122 series. It operates with a supply voltage range of 1 V to 6 V and features an N-channel open-drain output configuration that asserts low when the monitored voltage falls below the threshold. The device incorporates a built-in delay circuit to prevent false triggering during power transitions, eliminating the need for external components. Key specifications include a typical quiescent current of 12 µA and a reset delay time of 50 ms. It supports watchdog functionality via an EN/ENB pin and maintains operation across an industrial temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Integrates a CMOS process-based voltage detector with a reference source, comparator, and output driver for precise monitoring.
• Features an internal delay circuit that provides release delay time without requiring external capacitors or resistors.
• Includes an EN/ENB control pin that allows the watchdog function to be disabled while the voltage detector remains active.
• Utilizes laser trimming technology to ensure fixed detect voltages with high accuracy across the operating range.

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 codes against the official Torex datasheet to confirm the exact threshold voltage and package variant. Ensure the EN/ENB pin handling matches the application requirements, as this series may have internal pull-up configurations depending on the specific model revision. Confirm RoHS compliance status through the manufacturer's latest documentation before finalizing procurement.

Supervisors Selection Notes

Select this component when a single-supply voltage monitor with integrated watchdog capabilities is required. The open-drain output allows for flexible interfacing with various logic levels. Consider the 12 µA quiescent current for battery-powered applications. Verify that the 50 ms reset delay aligns with the system's startup timing requirements and that the 6 V maximum input voltage accommodates the highest expected supply rail.

Supervisors Part Context

This part belongs to the XC6121/XC6122/XC6123/XC6124 series of voltage detectors from Torex Semiconductor. These ICs are characterized by high precision and low current consumption, utilizing laser trimming for accurate threshold settings. The series is widely used in portable electronics and industrial systems where reliable power supervision and microprocessor reset generation are critical for system stability.

Supervisors Replacement Considerations

Cross-reference with other XC6122 series variants for different threshold voltages if the 3.3 V setting is not suitable. Check XC6121 or XC6123 series equivalents for similar form factors but verify differences in hysteresis width and enable pin configurations. Ensure any substitute maintains the SOT-25-5 package and compatible electrical characteristics for direct replacement.