XC6122F746MR-G

Supervisors Overview

The XC6122F746MR-G is a high-precision voltage detector with a watchdog function manufactured by Torex Semiconductor Ltd. It operates within a supply voltage range of 1.0 V to 6.0 V and detects input voltages from 1.6 V to 5.0 V. This specific model features a detection threshold voltage of 4.6 V. The device incorporates a CMOS process technology, resulting in low current consumption with a typical operating current of 12 µA and a static current of 5 µA. It provides an open-drain output that goes low upon detection. The unit is housed in a compact SOT-25-5 package and supports surface mount installation.

Supervisors Feature Summary

• Integrates a watchdog timer for system stability monitoring alongside voltage detection capabilities
• Utilizes CMOS process technology to achieve ultra-low power consumption suitable for battery-operated devices
• Features an open-drain output structure requiring no external components for basic operation
• Includes an enable pin to independently control the watchdog function while maintaining voltage detection

Supervisors Applications

• Microprocessor reset circuits
• Memory battery backup systems
• Power failure detection modules

Supervisors Procurement Notes

Verify the exact detection threshold voltage of 4.6 V against system requirements. Confirm the SOT-25-5 package dimensions match the PCB footprint. Ensure the open-drain output configuration aligns with the downstream logic interface. Check RoHS compliance status if required by regional regulations. Validate the operating temperature range suitability for the intended environment.

Supervisors Selection Notes

Select this component when a precise 4.6 V threshold is required for power supervision. Consider the low quiescent current for energy-efficient designs. The integrated watchdog functionality reduces external component count compared to separate supervisor ICs. Verify that the single-channel monitoring capability meets the system architecture needs. Ensure the open-drain output can drive the necessary load impedance.

Supervisors Part Context

This part belongs to the XC6121/XC6122/XC6123/XC6124 series of voltage detectors. The series is characterized by high precision and low current consumption. These devices are designed for applications requiring reliable power management and system reset functions. The XC6122 variant specifically includes watchdog timer functionality. The series utilizes laser trimming for accurate voltage thresholds.

Supervisors FAQ

What is the output state when the monitored voltage is below the threshold?

The output goes low (VDFL) when the detected voltage falls below the threshold.

Can the watchdog function be disabled independently?

Yes, the EN/ENB pin allows the watchdog function to be turned off while the voltage detector remains operational.