XC6124E550ER-G

Supervisors Overview

The XC6124E550ER-G is a high-precision voltage detector with watchdog functionality manufactured by Torex Semiconductor. It operates within a supply voltage range of 1 V to 6 V and features a fixed detection threshold of 5.5 V. The device incorporates an N-channel open-drain output driver and includes built-in delay circuits for release timing. It supports watchdog timeout periods ranging from 50 ms to 1.6 s and offers five selectable release delay times between 3.13 ms and 400 ms. The IC consumes low current, typically 12 µA during operation, and functions reliably across an industrial temperature range of -40 °C to +85 °C.

Supervisors Feature Summary

• Integrates a high-precision voltage detector with laser-trimmed threshold accuracy and a dedicated watchdog timer circuit.
• Features an EN/ENB pin that allows independent control over the watchdog function while maintaining continuous voltage monitoring.
• Provides flexible timing configurations with multiple selectable release delay times and watchdog timeout periods without external components.

Supervisors Applications

• Microprocessor watchdog monitoring and reset circuits
• Memory battery backup systems
• System power-on reset logic
• Power failure detection mechanisms

Supervisors Procurement Notes

Verify the specific suffix ER-G against the manufacturer's latest datasheet to confirm package type and compliance status. Ensure the required detection voltage matches the fixed internal setting as external adjustment is not supported. Confirm availability through authorized distributors as lead times may vary based on production schedules.

Supervisors Selection Notes

Select this component when a fixed 5.5 V threshold is required for system supervision. The integrated watchdog feature simplifies design by eliminating external timing components. Consider the low quiescent current for battery-powered applications. Verify that the open-drain output compatibility matches the downstream logic levels in the target circuit design.

Supervisors Part Context

This part belongs to the XC6124 series of voltage detectors which combine monitoring and watchdog capabilities. The series utilizes CMOS process technology to achieve high precision and low power consumption. Different suffixes indicate variations in detection voltage and packaging, allowing designers to choose specific thresholds within the 1.6 V to 5.0 V range or higher variants depending on the application requirements.

Supervisors Replacement Considerations

Cross-reference with other XC6124 series variants such as XC6124E500ER-G or XC6124E600ER-G if threshold adjustments are permissible. Ensure any substitute maintains the same SOT-25-5 or USP-6 package footprint and electrical characteristics including operating voltage and current consumption.

Supervisors FAQ

How is the watchdog function controlled?

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

What is the output configuration of the RESET pin?

The RESET output is configured as an N-channel open-drain driver, requiring an external pull-up resistor to function correctly with the desired logic levels.