XC6123E450ER-G

Supervisors Overview

The XC6123E450ER-G is a voltage monitor manufactured by Torex Semiconductor, designed for supervisory circuit applications. It operates within a supply voltage range of 1 V to 6 V and features a fixed detection threshold of 4.5 V. The device utilizes an N-channel open-drain output configuration and includes an integrated watchdog timer with selectable timeout periods. It offers a release delay time of 50 ms and maintains a low static current consumption of 5 uA. The component is housed in a USP-6C package and supports operation across an industrial temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Integrates a watchdog timer function that outputs a reset signal if the input signal remains constant within the specified timeout period.
• Includes an EN/ENB pin that allows forced disabling of the watchdog function while keeping the voltage detector operational.
• Provides power failure detection capabilities suitable for memory battery backup systems.

Supervisors Applications

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

Supervisors Procurement Notes

Verify the specific suffix ER-G against the official datasheet to confirm the USP-6C package type and standard reset delay characteristics. Ensure the 4.5 V threshold aligns with system requirements. Confirm RoHS compliance status through the manufacturer's documentation before finalizing procurement specifications.

Supervisors Selection Notes

Select this component when a 4.5 V detection threshold is required alongside active watchdog functionality. The USP-6C package suits space-constrained designs. Verify that the 50 ms release delay meets system timing constraints. Consider the 12 uA operating current for power-sensitive applications requiring continuous supervision.

Supervisors Part Context

This part belongs to the XC6123 series of voltage detectors featuring watchdog timers. The series distinguishes itself by allowing the watchdog function to be controlled via the EN/ENB pin, enabling selective deactivation without affecting the core voltage monitoring capability. This flexibility supports complex power management sequences in embedded systems.

Supervisors Replacement Considerations

Cross-reference XC6123 variants with different threshold voltages or packages such as SOT-25-5 if physical footprint changes are permissible. Verify that substitute parts maintain the same open-drain output polarity and watchdog timeout options to ensure functional compatibility.

Supervisors FAQ

How is the watchdog function disabled?

The watchdog function can be forced off by setting the EN/ENB pin to a low or high level, while the voltage detector continues to operate normally.

What is the output configuration of this IC?

The device features an N-channel open-drain output configuration.