XC6121C443ER-G

Supervisors Overview

The XC6121C443ER-G is a high-precision voltage detector manufactured by Torex Semiconductor Ltd, utilizing CMOS process technology. It features a fixed detection threshold of 4.4V with an accuracy of ±2%. The device operates within a supply voltage range of 1.0V to 6.0V and includes a built-in delay circuit for release signals without external components. It provides an open-drain output that goes low upon detection. The component supports a watchdog timer function controlled via the EN/ENB pin and is housed in a compact USP-6C surface-mount package.

Supervisors Feature Summary

• Integrates a reference voltage source, comparator, and output driver for precise voltage monitoring
• Includes a built-in delay circuit to generate release delay signals without requiring external capacitors
• Features an EN/ENB pin allowing independent control over the watchdog timer operation
• Utilizes laser-trimmed internal settings to maintain fixed detection thresholds with high accuracy

Supervisors Applications

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

Supervisors Procurement Notes

Verify the specific suffix 'C' against the manufacturer datasheet to confirm the exact threshold voltage and package variant, as suffixes define functional parameters. Ensure the ordering documentation matches the USP-6C package requirements. Cross-reference the RoHS compliance status and lead times directly with authorized distributors prior to procurement to ensure availability and regulatory adherence.

Supervisors Selection Notes

Select this component when a fixed 4.4V detection threshold is required for system supervision. It is suitable for applications needing integrated watchdog functionality and release delays without additional external passive components. Consider the open-drain output capability for interfacing with various logic levels and verify that the operating temperature range meets the environmental conditions of the target application.

Supervisors Part Context

This part belongs to the XC6121 series of voltage detectors from Torex Semiconductor. The series is characterized by low current consumption and high precision, designed for power supply management in portable and industrial electronics. The XC6121 variants typically offer fixed detection voltages ranging from 1.6V to 5.0V, providing a comprehensive solution for monitoring single-channel power rails in space-constrained designs.

Supervisors Replacement Considerations

XC6121A443ER-G