XC6122D626MR-G

Supervisors Overview

The XC6122D626MR-G is a high-precision voltage monitor manufactured by Torex Semiconductor, designed for power supply management applications. It operates within a supply voltage range of 1 V to 6 V and features a fixed detection threshold of 2.6 V. The device incorporates a built-in watchdog timer with a typical timeout period of 200 ms and a reset delay time of 100 ms. It consumes a low operating current of 12 µA and maintains a static current of 5 µA. The output driver provides an open-drain configuration compatible with CMOS logic levels. Packaged in a compact SOT-25-5 surface-mount format, it supports an industrial temperature range from -40 °C to +85 °C.

Supervisors Feature Summary

• Integrates a watchdog timer function with ON/OFF control capability via the EN/ENB pin, allowing independent management of monitoring and watchdog states.
• Utilizes laser trimming technology to ensure high-precision internal detection voltage settings across a wide range without external components.
• Features a built-in release delay circuit that eliminates the need for external capacitors to generate reset signal timing delays.

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 'D' indicates the correct output polarity and threshold code when sourcing replacements. Confirm the package marking matches the SOT-25 form factor. Ensure the order quantity aligns with standard reel packaging requirements. Cross-reference the manufacturer part number against official distributor catalogs to avoid counterfeit components. Validate RoHS compliance status if required by your manufacturing standards.

Supervisors Selection Notes

Select this component when a fixed 2.6 V threshold is required for single-input voltage monitoring. The integrated watchdog function makes it suitable for systems needing automatic recovery from software hangs. Consider the low quiescent current for battery-operated devices where power efficiency is critical. The open-drain output allows flexibility in interfacing with various logic families through pull-up resistor selection.

Supervisors Part Context

This part belongs to the XC6121/XC6122/XC6123/XC6124 series of voltage detectors. These ICs are designed using CMOS process technology to achieve high precision and low current consumption. The series shares common architectural features such as reference voltage sources, comparators, and delay circuits, differentiated primarily by detection voltage codes and output configurations.

Supervisors Replacement Considerations

XC6122D629MR-G: Shares the same series and package but has a different detection threshold of 2.9 V. XC6122C627MR-G: Similar functionality with a 2.7 V threshold and 50 ms reset delay. Verify threshold compatibility before substitution.

Supervisors FAQ

How is the watchdog function controlled?

The watchdog function can be turned ON or OFF by setting the EN/ENB pin to a high or low level, respectively, while the voltage detector remains operational.

What is the default state of the EN/ENB pin?

For the XC6122 series, the EN/ENB pin is internally pulled up to the VIN pin, allowing the IC to operate with the pin left open if the watchdog function is desired.