XC6123A419MR-G

Supervisors Overview

The XC6123A419MR-G is a high-precision voltage monitor with an integrated watchdog timer 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 4.1 V. The device utilizes CMOS technology, drawing a typical operating current of 12 uA and a standby current of 5 uA. It provides an active-low open-drain output and includes a built-in delay circuit for release timing. The component is housed in a compact SOT-25-5 surface-mount package and supports an industrial temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Integrates a high-precision voltage detector with a dedicated watchdog timer function in a single chip.
• Features an EN/ENB control pin that allows independent switching of the watchdog function while maintaining voltage monitoring.
• Utilizes internal delay circuits to generate reset signals without requiring external capacitors or resistors.

Supervisors Applications

• Microprocessor system supervision and reset management
• Memory battery backup circuit monitoring
• Power failure detection in embedded systems

Supervisors Procurement Notes

Verify the specific threshold voltage and timeout characteristics against the official datasheet before integration, as these parameters are fixed per part number. Confirm that the SOT-25-5 footprint matches the target PCB design. Ensure the application environment remains within the specified -40°C to +85°C operating range to maintain accuracy. Cross-reference the manufacturer's latest documentation for any updates to electrical specifications or pin configurations.

Supervisors Selection Notes

Select this component when a combined voltage supervisor and watchdog timer is required in a minimal footprint. The low quiescent current makes it suitable for battery-powered applications. The open-drain output requires an external pull-up resistor compatible with the system logic levels. Consider the fixed 4.1 V threshold to ensure it aligns with the monitored rail's nominal voltage and brown-out requirements.

Supervisors Part Context

This part belongs to the XC6123 series of voltage detectors with watchdog functions. The series employs CMOS process technology to achieve high precision and low power consumption. It is designed for applications requiring reliable system monitoring where space constraints limit the use of discrete components. The family offers various threshold voltages and delay times to suit different system architectures.

Supervisors Replacement Considerations

Other XC6123 variants with different suffixes may offer alternative threshold voltages or delay times but share similar functionality. Verify compatibility if substituting with other parts from the XC6121, XC6122, or XC6124 series, ensuring pinout and electrical limits match the design requirements.