XC6122A250MG-G

Supervisors Overview

The XC6122A250MG-G is a high-precision voltage detector with watchdog functionality from Torex Semiconductor. It operates within a supply voltage range of 1.0V to 6.0V and features an internally fixed detect voltage threshold of 2.5V, determined by the '25' suffix in the part number. The device utilizes CMOS technology for low current consumption, with a typical static current of 5µA. It provides an N-channel open-drain output that goes low upon detection. The component includes a built-in delay circuit for release delay times and supports watchdog timeout periods ranging from 50ms to 1.6s. It is housed in a SOT-25-5 package.

Supervisors Feature Summary

• Integrated watchdog timer function with selectable timeout periods for system monitoring
• Low current consumption design suitable for battery-powered applications
• Built-in delay circuit eliminates need for external components for release timing
• N-channel open-drain output configuration for flexible interfacing

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 detect voltage threshold corresponds to the '25' code indicating 2.5V when confirming orders. Ensure the selected package variant matches the required PCB footprint, as this model uses SOT-25. Confirm RoHS compliance status if environmental regulations apply to the target assembly. Cross-reference the manufacturer datasheet for exact electrical characteristics relative to temperature variations during integration.

Supervisors Selection Notes

Select this component when a precise 2.5V monitoring threshold is required alongside integrated watchdog capabilities. The low quiescent current makes it appropriate for energy-constrained designs. Consider the open-drain output requirement for pull-up resistor implementation in the host circuit. Verify that the operating temperature range meets the environmental conditions of the final application.

Supervisors Part Context

This device belongs to the XC6121/XC6122/XC6123/XC6124 series of voltage detectors. The XC6122 variant specifically incorporates a watchdog function, distinguishing it from basic supervisors. The series employs laser trimming technology to ensure high precision in detect voltage settings across various thresholds.

Supervisors Replacement Considerations

XC6122A250MR-G

Supervisors FAQ

How is the watchdog function controlled?

The EN/ENB pin controls the ON/OFF state of the watchdog function. Setting this pin allows the watchdog to be disabled while the voltage detector remains operational.

What determines the detect voltage value?

The detect voltage is internally fixed using laser trimming technology. In this specific part number, the threshold is set to 2.5V.