XC6122F544MR-G

Supervisors Overview

The XC6122F544MR-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 of 4.4 V. The device utilizes an N-channel open-drain output configuration and includes a built-in delay circuit for release delay times ranging from 3.13 ms to 400 ms. Watchdog timeout periods are selectable between 50 ms and 1.6 s. It functions in temperatures from -40°C to +85°C, consumes 5 µA static current, and is housed in a SOT-25-5 package.

Supervisors Feature Summary

• Integrates a watchdog timer with selectable timeout periods for system monitoring
• Features an EN/ENB pin to independently control the watchdog function while maintaining voltage detection
• Provides low current consumption suitable for battery-powered applications
• Includes a built-in delay circuit eliminating the need for external 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 codes against the official datasheet to confirm the exact detect voltage and package type. Ensure compatibility with the target operating temperature range and supply voltage requirements. Confirm RoHS compliance status through manufacturer documentation before integration into production designs.

Supervisors Selection Notes

Select this component when a precise voltage threshold near 4.4 V is required alongside integrated watchdog functionality. Consider the SOT-25-5 package size constraints and the open-drain output requirement for pull-up resistor implementation. Evaluate the available release delay and watchdog timeout settings to match system timing specifications.

Supervisors Part Context

This part belongs to the XC6121/XC6122/XC6123/XC6124 series of CMOS voltage detectors. The series is characterized by high precision achieved through laser trimming technology and low power consumption. These devices are designed to provide reliable supervision for digital systems without requiring extensive external support circuitry.

Supervisors Replacement Considerations

Cross-reference with other XC6122 variants having different detect voltages or packages if the 4.4 V threshold is unsuitable. Verify functional equivalence with other supervisor ICs offering similar watchdog and delay features.