XC6122C741ER-G

Supervisors Overview

The XC6122C741ER-G is a high-precision voltage detector with an integrated watchdog timer manufactured by Torex Semiconductor. It operates within a supply voltage range of 1.0V to 6.0V and features a fixed detection threshold of 4.1V. The device utilizes CMOS technology, drawing a typical operating current of 12µA and a standby current of 5µA. It provides a watchdog timeout period of 800ms and includes a release delay function. The output stage consists of an N-channel open-drain driver that asserts an active-low reset signal. The component is housed in a compact 6-USP (1.8x2mm) surface-mount package and supports operation across an industrial temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Integrates a watchdog timer with an 800ms timeout period for system fault monitoring
• Features a fixed 4.1V detection threshold with built-in hysteresis to prevent output oscillation
• Provides low power consumption with 5µA standby current suitable for battery-operated applications
• Includes an EN/ENB pin to independently disable the watchdog function while maintaining voltage detection

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 official datasheet to confirm the 6-USP package type and lead-free status. Ensure the 4.1V threshold matches the design requirements, as this parameter is fixed internally via laser trimming. Confirm availability through authorized distributors, as standard packaging typically involves tape and reel quantities.

Supervisors Selection Notes

Select this component when a fixed 4.1V threshold is required alongside an 800ms watchdog timeout. It is appropriate for designs needing independent control over the watchdog function via the EN/ENB pin. Consider the 6-USP package dimensions for PCB layout constraints. Verify that the open-drain output configuration aligns with the pull-up requirements of the connected microcontroller or logic interface.

Supervisors Part Context

This part belongs to the XC6121/XC6122/XC6123/XC6124 series of voltage detectors from Torex Semiconductor. The series shares common architectural features including CMOS construction, low current consumption, and configurable watchdog timers. Variations within the series are primarily defined by the fixed detection voltage thresholds and the specific package options available, such as SOT-25 or USP-6C.

Supervisors Replacement Considerations

Substitutes must match the 4.1V threshold, 800ms watchdog timeout, and 6-USP package footprint. Verify that alternative components support the same 1.0V to 6.0V operating voltage range and offer compatible open-drain output characteristics.