XC6122A544MR-G

Supervisors Overview

The XC6122A544MR-G is a high-precision voltage detector with a watchdog function manufactured by Torex Semiconductor. It operates within a supply voltage range of 1 V to 6 V and features a fixed detection threshold of 5.4 V. The device utilizes CMOS process technology and provides an N-channel open-drain output that goes low upon detection. It includes a built-in delay circuit for release delay times, eliminating the need for external components. The IC supports watchdog input functionality and allows control via the EN/ENB pin.

Supervisors Feature Summary

• Integrates a watchdog timer function with selectable timeout periods to monitor system activity.
• Features an internal pull-up on the EN/ENB pin, allowing the watchdog function to be disabled while maintaining voltage detection when the pin is left open.
• Provides a built-in delay circuit that generates release delay signals without requiring external capacitors or resistors.

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 datasheet to confirm the exact detection voltage and package type. Ensure the EN/ENB pin configuration matches the design requirements, as this variant has internal pull-ups. Confirm RoHS compliance status and operating temperature range specifications before finalizing procurement orders.

Supervisors Selection Notes

Select this component when a fixed 5.4 V detection threshold is required for systems operating between 1 V and 6 V. It is suitable for applications needing integrated watchdog capabilities without external timing components. Consider the SOT-25-5 package size and open-drain output compatibility with the target logic levels during selection.

Supervisors Part Context

This part belongs to the XC6122 series of voltage detectors from Torex Semiconductor. The series is characterized by high precision achieved through laser trimming technology and low current consumption. These devices are designed for reliable power management in portable and industrial electronics where stable voltage monitoring is critical.

Supervisors Replacement Considerations

Other parts in the XC6122 series with different detection voltages may serve as functional substitutes if the threshold requirement changes. Verify pin compatibility and electrical characteristics before substitution.

Supervisors FAQ

How is the watchdog function controlled?

The watchdog function can be turned off by setting the EN/ENB pin to a low or high level. For this series, the pin is internally pulled up, so it can be left open to use the watchdog function.

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

The output type is N-channel open drain, which goes low (VDFL) when the monitored voltage drops below the detection threshold.