XC6122C245MG-G

Supervisors Overview

The XC6122C245MG-G is a high-precision voltage detector manufactured by Torex Semiconductor, featuring an integrated watchdog timer. It operates within a supply voltage range of 1.0 V to 6.0 V and detects input voltages from 1.6 V to 5.0 V with 100 mV increments. The device utilizes a CMOS process for low power consumption, drawing 12 µA during operation and 5 µA in standby. It provides a reset delay time of 200 ms and supports a watchdog timeout period of 50 ms. The output configuration is an N-channel open-drain type, active low. It is housed in a compact SOT-25-5 surface-mount package and functions reliably across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Integrates a watchdog function controllable via the EN/ENB pin, allowing independent shutdown of the watchdog while maintaining voltage detection.
• Utilizes laser trimming technology to ensure fixed internal detect voltages with high precision and minimal external component requirements.
• Features an internally pulled-up EN/ENB pin that permits the pin to remain open when the watchdog function is utilized.

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 specific suffix codes against official documentation to confirm package type and detect voltage accuracy. Ensure compatibility with system voltage levels and thermal requirements before integration. Cross-reference the manufacturer's latest datasheet for any updates on environmental compliance or pinout configurations.

Supervisors Selection Notes

Select this component for applications requiring precise voltage supervision with integrated watchdog capabilities in a small footprint. Consider the 200 ms reset delay and 50 ms watchdog timeout settings against system timing constraints. Evaluate the low current consumption benefits for battery-operated designs compared to standard supervisors.

Supervisors Part Context

This part belongs to the XC6121/XC6122/XC6123/XC6124 series of high-precision, low-current voltage detectors. The series employs CMOS technology to deliver reliable performance in power management applications. The XC6122 variant specifically includes a watchdog timer, distinguishing it from basic voltage monitors in the same family.

Supervisors FAQ

How is the watchdog function controlled?

The watchdog function can be turned ON or OFF using the EN/ENB pin. Setting this pin to a specific logic level disables the watchdog while keeping the voltage detector operational.

What happens if the EN/ENB pin is left open?

The EN/ENB pin is internally pulled up to the VIN pin. Therefore, leaving the pin open allows the IC to operate normally with the watchdog function enabled.