XC6121E637ER-G

Supervisors Overview

The XC6121E637ER-G is a high-precision voltage detector manufactured by Torex Semiconductor Ltd, featuring an integrated watchdog timer and ON/OFF control functionality. It utilizes CMOS process technology to achieve low current consumption while maintaining accurate monitoring of power supply levels. The device incorporates a reference voltage source, delay circuit, comparator, and output driver within a single channel configuration. It operates within a supply voltage range of 1.0V to 6.0V and detects input voltages with a fixed threshold of 3.7V. The component is housed in a compact 6-USPC (1.8x2mm) surface-mount package, suitable for space-constrained applications requiring reliable power supervision.

Supervisors Feature Summary

• Integrates a watchdog timer function to monitor system operation and prevent software errors
• Features an EN/ENB pin for precise external control of the detection circuit's active state
• Provides open-drain output type for flexible interface compatibility with various logic families
• Utilizes built-in delay circuits to generate release delay times without requiring external components

Supervisors Applications

• Battery-powered portable electronic devices requiring low standby current
• Microprocessor and microcontroller systems needing reliable reset signal generation
• Industrial control equipment utilizing watchdog functions for fault protection
• Communication modules requiring voltage supervision during power transitions

Supervisors Procurement Notes

Verify the specific suffix ER-G confirms the 6-USPC package and RoHS compliance status before ordering. Ensure the 3.7V threshold matches the target application's voltage requirements. Confirm that the open-drain output configuration aligns with the pull-up resistor design of the host system. Check datasheet revisions for any updates to electrical characteristics or recommended operating conditions.

Supervisors Selection Notes

Select this component when a fixed 3.7V detection threshold is required for power management. The integrated watchdog feature makes it suitable for systems prone to software hangs. Consider the 6-USPC package size if board real estate is limited. Verify that the 1.0V minimum operating voltage covers the lowest expected supply level in the application environment.

Supervisors Part Context

This part belongs to the XC6121 series of voltage detectors from Torex Semiconductor. The series is characterized by high precision and low current consumption. Other variants in the family offer different detection thresholds and package options. The XC6121 series is designed for general-purpose power supply monitoring in consumer and industrial electronics.

Supervisors FAQ

What is the function of the EN/ENB pin on the XC6121E637ER-G?

The EN/ENB pin allows external control over the ON/OFF state of the voltage detector, enabling power saving when the monitoring function is not needed.

Does the XC6121E637ER-G require external components for its delay function?

No, the device includes a built-in delay circuit that generates the release delay time internally without requiring additional external capacitors or resistors.