XC6122E631ER-G

Supervisors Overview

The XC6122E631ER-G is a high-precision voltage detector with watchdog function manufactured by Torex Semiconductor. It operates within a supply voltage range of 1 V to 6 V and features a fixed detection threshold of 3.1 V. The device incorporates an N-channel open-drain output configuration and includes a built-in delay circuit for release timing. Key electrical parameters include a typical operating current of 12 µA and a static current of 5 µA. It supports a watchdog timeout period of 800 ms and provides a reset delay time of 200 ms. The component is rated for industrial temperatures from -40°C to +85°C and is housed in a compact USP-6C surface-mount package.

Supervisors Feature Summary

• Integrates a watchdog timer function that outputs a reset signal if the input maintains a specific logic level beyond the timeout period.
• Features an internal EN/ENB pin that allows independent control over the watchdog function while keeping the voltage detector active.
• Utilizes laser trimming technology to ensure high-precision detect voltages with minimal temperature drift characteristics.

Supervisors Applications

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

Supervisors Procurement Notes

Verify the exact suffix ER-G against the manufacturer's latest datasheet to confirm package type and pinout compatibility. Ensure the required detection voltage matches the fixed internal setting, as external adjustment is not supported. Confirm RoHS compliance status and lead-free specifications prior to finalizing procurement orders for production integration.

Supervisors Selection Notes

Select this component when a fixed 3.1 V threshold is required for system supervision. The integrated watchdog function eliminates the need for external timing components, reducing board space. Consider the low quiescent current for battery-operated applications. Verify that the open-drain output interface aligns with the downstream logic requirements of the monitored system.

Supervisors Part Context

This part belongs to the XC6121/XC6122/XC6123/XC6124 series of voltage detectors. The XC6122 variant specifically designates the inclusion of the watchdog timer functionality alongside the voltage monitoring capabilities. These devices are designed for use in portable electronic equipment and industrial systems requiring reliable power management and system stability.

Supervisors FAQ

How is the watchdog function controlled?

The watchdog function can be turned ON or OFF via the EN/ENB pin. For the XC6122 series, this pin is internally pulled up to the VIN pin, allowing it to be left open to enable the watchdog function by default.

What is the output configuration of the RESETB pin?

The RESETB pin utilizes an N-channel open-drain output configuration. The output goes low when a voltage drop or watchdog timeout is detected.