XC6122A634MR-G

Supervisors Overview

The XC6122A634MR-G is a high-precision voltage monitor with an integrated watchdog timer manufactured by Torex Semiconductor. It operates within a supply voltage range of 1.0 V to 6.0 V and features a fixed detection threshold of 3.4 V. The device utilizes CMOS technology, drawing a typical operating current of 12 µA and a static current of 5 µA. It provides an active-low open-drain output and includes a built-in delay circuit for release timing. The component is housed in a SOT-25-5 surface-mount package and supports an operating temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Integrates a high-precision voltage detector with a watchdog timer function using CMOS process technology.
• Features an internal delay circuit that eliminates the need for external components to generate release delay signals.
• Includes an EN/ENB pin that allows independent control over the watchdog function while maintaining voltage monitoring operation.

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 threshold voltage and timeout settings. Ensure the ordering code matches the required package type and environmental compliance standards. Cross-reference the manufacturer's part number with distributor listings to confirm availability and authenticity before procurement.

Supervisors Selection Notes

Select this component when a low-power supervisor with integrated watchdog functionality is required for single-voltage monitoring applications. The fixed 3.4 V threshold suits systems where this specific level requires supervision. Consider the SOT-25-5 package for space-constrained designs and verify that the open-drain output compatibility meets the downstream logic requirements.

Supervisors Part Context

This part belongs to the XC6121/XC6122/XC6123/XC6124 series of voltage detectors. The XC6122 variant specifically incorporates an enable/disable pin for the watchdog function, distinguishing it from other series members. These devices are designed for portable equipment and industrial systems requiring reliable power management with minimal external component count.

Supervisors Replacement Considerations

Other parts within the XC6122 series may serve as substitutes if they share the same SOT-25-5 package and compatible electrical characteristics. Verify that alternative candidates offer the same 3.4 V detection threshold and similar current consumption profiles to ensure functional equivalence in the existing design.

Supervisors FAQ

How is the watchdog function controlled on the XC6122A634MR-G?

The watchdog function can be turned ON or OFF via the EN/ENB pin. Setting this pin to a specific logic level disables the watchdog while allowing the voltage detector to continue operating normally.

What is the output configuration of this voltage monitor?

The device features an N-channel open-drain output. The output signal goes low when the monitored voltage falls below the detection threshold or when the watchdog timer expires without input.