XC6122A733MR-G

Supervisors Overview

The XC6122A733MR-G is a high-precision voltage detector with a watchdog function manufactured by Torex Semiconductor. It operates within a supply voltage range of 1.0 V to 6.0 V and features a fixed detection threshold of 3.3 V. The device utilizes CMOS process technology and offers low current consumption, with a typical operating current of 12 µA and static current of 5 µA. It includes an internal delay circuit for release delay times ranging from 3.13 ms to 400 ms and supports six watchdog timeout periods from 50 ms to 1.6 s. The output is an N-channel open-drain type, active low when detected. It is housed in a SOT-25-5 package and functions reliably between -40°C and +85°C.

Supervisors Feature Summary

• Integrates a watchdog timer with selectable timeout periods and built-in release delay circuitry without external components
• Features an EN/ENB pin that allows independent control to disable the watchdog function while maintaining voltage detection
• Utilizes laser trimming technology to ensure high-precision detection voltage accuracy across temperature variations

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 'MR-G' corresponds to the required tape and reel packaging configuration. Confirm the detection voltage code aligns with the 3.3 V threshold requirement. Ensure the SOT-25-5 package footprint matches the target PCB design. Check RoHS compliance documentation for environmental regulatory adherence. Validate the EN/ENB pin internal pull-up configuration against system logic levels.

Supervisors Selection Notes

Select this component when a single-input voltage monitor with integrated watchdog functionality is required. The 3.3 V threshold suits standard logic supply monitoring. The low quiescent current makes it suitable for battery-powered applications. The open-drain output requires an external pull-up resistor. Consider the available delay time settings to match system startup or fault response requirements.

Supervisors Part Context

This part belongs to the XC6121/XC6122/XC6123/XC6124 series of voltage detectors. The XC6122 variant specifically provides an enable/disable pin for the watchdog function, unlike the XC6121 which lacks this control. The series shares common architectural features including CMOS construction and laser-trimmed precision, differing primarily in detection voltage codes and package options.

Supervisors Replacement Considerations

XC6122A733ER-G: Same electrical specifications but in a 6-USPC package. XC6122D733MR-G: Alternative suffix variant within the same series offering identical functional parameters.