XC6122D440MR-G

Supervisors Overview

The XC6122D440MR-G is a high-precision voltage detector with watchdog function and ON/OFF control, manufactured by Torex Semiconductor. It operates within a supply voltage range of 1 V to 6 V and features a fixed detect voltage threshold of 4.0 V. The device incorporates an N-channel open-drain output configuration and includes a built-in delay circuit for release delay time settings ranging from 3.13 ms to 400 ms. Watchdog timeout periods are selectable between 50 ms and 1.6 s. The IC utilizes laser trimming technology for accurate voltage detection and maintains low current consumption with a typical operating current of 12 µA.

Supervisors Feature Summary

• Integrated watchdog timer with selectable timeout periods for system monitoring
• ON/OFF control capability via EN/ENB pin to disable watchdog while maintaining voltage detection
• Built-in release delay circuit eliminating the need for external components
• High-precision voltage detection using laser trimming technology

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 MR-G corresponds to the SOT-25-5 package and tape & reel packaging format as documented in official Torex Semiconductor datasheets. Confirm that the detect voltage code 440 aligns with the required 4.0 V threshold for the target application. Ensure compatibility with the 1 V to 6 V operating voltage range and check for any specific environmental or RoHS compliance requirements mandated by the end-use industry standards.

Supervisors Selection Notes

Select this component when a precise 4.0 V detection threshold is required alongside integrated watchdog functionality. The XC6122D440MR-G is suitable for applications needing low quiescent current and configurable delay times without external passive components. Consider the SOT-25-5 package size for space-constrained designs. Verify that the N-channel open-drain output interface matches the input requirements of the downstream logic or microcontroller reset pin.

Supervisors Part Context

This part belongs to the XC6121/XC6122/XC6123/XC6124 series of voltage detectors from Torex Semiconductor. The series shares common architectural features including CMOS process technology, reference voltage sources, comparators, and output drivers. Variations within the series primarily differ in detect voltage thresholds, package types, and specific suffix codes indicating manufacturing revisions or packaging options.

Supervisors Replacement Considerations

Other parts in the XC6122 series with different detect voltages (e.g., XC6122Dxxx) may serve as functional substitutes if the threshold voltage matches the application requirement. Cross-series replacements like XC6121 or XC6123 require verification of package compatibility and pinout alignment. Ensure any substitute maintains the same watchdog timeout ranges and release delay settings.