XC6122E742MR-G

Supervisors Overview

The XC6122E742MR-G is a high-precision voltage monitor with an integrated watchdog timer manufactured by Torex Semiconductor. It operates within a supply voltage range of 1 V to 6 V and features a detection threshold of 4.2 V. The device utilizes a CMOS open-drain output and provides a reset delay time of 200 ms. It consumes a typical operating current of 12 µA and maintains a standby current of 5 µA. Designed for surface-mount applications, it is housed in a compact SOT-25-5 package and supports operation across temperatures from -40°C to +85°C.

Supervisors Feature Summary

• Integrates a watchdog timer function controllable via the EN/ENB pin while maintaining continuous voltage monitoring
• Features a built-in delay circuit that eliminates the need for external components to generate release delay signals
• Provides low power consumption suitable for battery-operated systems with minimal static current draw

Supervisors Applications

• Monitoring power supply voltages in portable electronic devices
• System supervision in embedded microcontroller circuits
• Watchdog protection for digital logic and communication interfaces

Supervisors Procurement Notes

Verify the specific suffix MR-G confirms the SOT-25-5 packaging and tape-and-reel delivery format. Confirm the E-series designation aligns with the required 4.2 V threshold and 200 ms reset delay specifications. Ensure compatibility with the target operating temperature range of -40°C to +85°C before finalizing procurement orders.

Supervisors Selection Notes

Select this component when a single-channel voltage supervisor with independent watchdog functionality is required. The open-drain output allows flexible interfacing with various logic families. Consider the 1 V minimum operating voltage for low-power applications where standard supervisors may not function correctly at lower rail voltages.

Supervisors Part Context

This part belongs to the XC6122 series of voltage detectors with watchdog functions. The series employs CMOS process technology to achieve high precision and low current consumption. It combines a reference voltage source, delay circuit, comparator, and output driver into a single monolithic IC for efficient system supervision.

Supervisors FAQ

How is the watchdog timer function controlled?

The watchdog function can be enabled or disabled by setting the EN/ENB pin to a high or low level, allowing the voltage detector to remain operational while the watchdog is turned off.

What is the output state when a voltage drop is detected?

The output goes low (V_DFL) when a voltage below the threshold is detected, indicating a fault condition requiring system intervention.