XC6121C219ER-G

Supervisors Overview

The XC6121C219ER-G is a high-precision voltage detector with a watchdog function and ON/OFF control, manufactured by Torex Semiconductor using CMOS process technology. It features a fixed detection threshold of 1.9V with an accuracy of ±2%. The device operates within a supply voltage range of 1.0V to 6.0V and consumes a typical static current of 5μA. It includes a built-in delay circuit for release delay times and supports six watchdog timeout period settings ranging from 50ms to 1.6s. The output driver provides an open-drain configuration, and the IC is housed in a USP-6C package suitable for surface mount applications.

Supervisors Feature Summary

• Integrates a watchdog timer with selectable timeout periods and a built-in release delay circuit requiring no external components
• Features an EN/ENB pin that allows independent control over the watchdog function while maintaining voltage detection operation
• Utilizes laser trimming technology to ensure high-precision fixed detection voltages across the specified range

Supervisors Applications

• Microprocessor watchdog monitoring and reset circuits
• Memory battery backup circuits
• System power-on reset circuits
• Power failure detection systems

Supervisors Procurement Notes

Verify the specific suffix ER-G against the manufacturer's latest datasheet to confirm the exact package type and tape-and-reel specifications. Ensure the detection voltage code matches the required 1.9V threshold for your design. Cross-reference RoHS compliance status and lead times directly with authorized distributors or the manufacturer before finalizing procurement plans.

Supervisors Selection Notes

Select this component when a fixed 1.9V threshold is required for system supervision. Consider the low 5μA static current for battery-powered applications. Verify that the open-drain output interface is compatible with the microprocessor input logic levels. Confirm that the USP-6C package dimensions fit the available PCB space constraints.

Supervisors Part Context

This part belongs to the XC6121 series of voltage detectors which incorporate watchdog functions. The series utilizes CMOS technology to achieve high precision and low power consumption. The XC6121 variant specifically offers an enable/disable pin for the watchdog feature, distinguishing it from basic voltage detectors without control inputs.

Supervisors FAQ

How is the watchdog function controlled on the XC6121C219ER-G?

The watchdog function can be turned ON or OFF independently via the EN/ENB pin, allowing the voltage detector to remain operational while the watchdog is disabled.

What is the output configuration of this voltage detector?

The device features an open-drain output type that goes low when the detected voltage falls below the threshold.