XC6123A344MR-G

Supervisors Overview

The XC6123A344MR-G is a high-precision voltage detector with watchdog functionality manufactured by Torex Semiconductor. It operates within a supply voltage range of 1.0 V to 6.0 V and features a fixed detection threshold of 3.4 V. The device utilizes CMOS technology, drawing a typical operating current of 12 µA and a static current of 5 µA. It provides an N-channel open-drain output that goes low upon detection. Key timing parameters include a reset delay time of 50 ms and a watchdog timeout period of 400 ms. The component supports operation across temperatures from -40°C to +85°C and is housed in a compact SOT-25-5 surface-mount package.

Supervisors Feature Summary

• Integrates a watchdog timer function controllable via the EN/ENB pin, allowing independent shutdown of the watchdog while maintaining voltage monitoring.
• Employs laser trimming technology to ensure high-precision detection voltage settings with minimal temperature drift characteristics.
• Features built-in delay circuits for release delay times, eliminating the need for external components to manage signal timing.

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 the manufacturer datasheet to confirm the exact threshold voltage and package variant. Ensure compatibility with the target system's voltage levels and thermal requirements. Confirm RoHS compliance status through official documentation before integration into production designs.

Supervisors Selection Notes

Select this component when a precise voltage threshold near 3.4 V is required alongside integrated watchdog protection. Consider the low quiescent current for battery-operated applications. Verify that the open-drain output configuration aligns with the downstream logic interface requirements.

Supervisors Part Context

This part belongs to the XC6123 series, which groups high-precision, low-current voltage detectors with watchdog functions. The series shares common architectural features including CMOS process technology and internal reference voltage sources, differentiated primarily by detection thresholds and specific timing configurations.

Supervisors Replacement Considerations

Cross-reference with other XC6123 variants sharing the same SOT-25 package and similar electrical characteristics. Verify functional equivalence regarding watchdog timeout periods and reset delay times before substitution.

Supervisors FAQ

How is the watchdog function controlled on the XC6123A344MR-G?

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 is the output state when the monitored voltage falls below the threshold?

The output type is N-channel open drain, which goes low (V_DFL) when the detected voltage falls below the set threshold.