XC6123C538MR-G

Supervisors Overview

The XC6123C538MR-G is a high-precision voltage monitor manufactured by Torex Semiconductor, designed for supervisory circuit applications. It operates within a supply voltage range of 1 V to 6 V and features a fixed detection threshold of 3.8 V. The device incorporates a built-in watchdog timer with a typical timeout period of 400 ms and offers selectable release delay times. It utilizes an N-channel open-drain output configuration and consumes low current, with a static current of 5 uA and operating current of 12 uA. The component is housed in a SOT-25-5 package and supports an industrial temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Integrates a watchdog function controllable via the EN/ENB pin to disable the timer while maintaining voltage monitoring.
• Features laser-trimmed internal detection voltages ranging from 1.6 V to 5.0 V with high precision.
• Includes a built-in delay circuit that eliminates the need for external components for release delay timing.

Supervisors Applications

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

Supervisors Procurement Notes

Verify the specific suffix codes against the official Torex Semiconductor datasheet to confirm the exact threshold voltage and package variant. Ensure compatibility with the required release delay time settings and watchdog timeout periods for the target application. Cross-reference the RoHS compliance status and manufacturing origin as specified in the latest product documentation before finalizing procurement orders.

Supervisors Selection Notes

Select this component when a single-input voltage monitor with integrated watchdog functionality is required. The 3.8 V threshold suits systems where this specific level indicates under-voltage conditions. Consider the open-drain output for interfacing with various logic levels. Verify that the 1 V minimum operating voltage aligns with the system's lowest supply rail during operation.

Supervisors Part Context

This part belongs to the XC6123 series of voltage detectors from Torex Semiconductor. The series is characterized by CMOS process technology, offering high precision and low current consumption. These devices are designed to provide reliable supervision for digital systems, combining voltage monitoring with watchdog capabilities in a compact surface-mount package suitable for space-constrained designs.

Supervisors Replacement Considerations

Direct replacements within the same series include XC6123 variants with different threshold suffixes, such as XC6123C537MR or XC6123E542MR, depending on the required detection voltage. Ensure any substitute maintains the SOT-25-5 package and compatible electrical characteristics for seamless integration.