XC6123A434MR-G

Supervisors Overview

The XC6123A434MR-G is a high-precision voltage detector with watchdog function 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 voltage of 4.3 V. The device incorporates CMOS process technology, drawing a typical operating current of 12 µA and a static current of 5 µA. It provides an open-drain output type with active low reset signaling. Key timing parameters include a standard reset delay time of 50 ms and a watchdog timeout period of 400 ms. The component is housed in a compact SOT-25-5 package and supports surface mount installation.

Supervisors Feature Summary

• Integrates a watchdog timer function alongside voltage monitoring capabilities for comprehensive system supervision.
• Features an ON/OFF control pin (EN/ENB) that allows independent disabling of the watchdog function while maintaining voltage detection operation.
• Utilizes built-in delay circuits to generate release delay signals without requiring external components.
• Employs laser-trimmed technology to ensure high precision in the fixed detection voltage threshold.

Supervisors Applications

• Microprocessor watchdog monitoring and reset circuit management
• Memory battery backup circuit supervision
• System power-on reset logic implementation

Supervisors Procurement Notes

Verify the specific suffix codes against official datasheets to confirm threshold voltage and package variations. Ensure compatibility with the target PCB footprint for the SOT-25-5 package. Confirm RoHS compliance status if required by project specifications. Cross-reference the manufacturer part number with authorized distributor catalogs to avoid counterfeit components. Validate electrical parameters against the latest revision of the XC6123 series documentation.

Supervisors Selection Notes

Select this component when a single-channel voltage monitor with integrated watchdog functionality is required. The 4.3 V threshold suits applications monitoring higher voltage rails within the 1.0 V to 6.0 V operating range. Consider the low quiescent current for battery-powered designs. Verify that the open-drain output interface aligns with the downstream logic requirements. Ensure the 400 ms watchdog timeout meets the system's fault recovery timing constraints.

Supervisors Part Context

This part belongs to the XC6121/XC6122/XC6123/XC6124 series of voltage detectors from Torex Semiconductor. The series is characterized by high precision and low current consumption using CMOS technology. These devices are designed for supervisory applications in portable electronics and industrial systems where reliable power monitoring and processor reset management are critical.

Supervisors Replacement Considerations

XC6123A434MNR-G