XC6124C717ER-G

Supervisors Overview

The XC6124C717ER-G is a high-precision voltage detector with watchdog functionality manufactured by Torex Semiconductor Ltd. It utilizes CMOS process technology and features an internally fixed detect voltage threshold of 1.7V, determined via laser trimming. The device operates within a supply voltage range of 1.0V to 6.0V and includes a built-in delay circuit for release timing without external components. It provides an N-channel open-drain output that goes low upon detection. The part supports a watchdog timeout period selectable from 50ms to 1.6s and offers five release delay time settings ranging from 3.13ms to 400ms. It functions reliably across a temperature range of -40°C to +85°C in a compact 6-USP package.

Supervisors Feature Summary

• Integrates a watchdog timer function controllable via the EN/ENB pin, allowing the watchdog to be disabled while the voltage detector remains active.
• Features an internally pulled-up EN/ENB pin connected to the VIN pin, enabling operation with the pin left open when utilizing the watchdog function.
• Provides a built-in delay circuit that generates release delay signals without requiring external components.
• Delivers an N-channel open-drain output signal that asserts low when the monitored voltage falls below the detection threshold.

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 ER-G against the manufacturer datasheet to confirm the package type and lead-free status. Ensure the required watchdog timeout period matches one of the six available internal settings. Confirm that the 1.7V threshold aligns with the system's voltage monitoring requirements. Check compatibility with the target operating temperature range of -40°C to +85°C. Validate that the open-drain output configuration suits the downstream logic interface.

Supervisors Selection Notes

Select this component when a precise 1.7V detection threshold is required for single-channel monitoring. Choose this part if the application necessitates an integrated watchdog timer with selectable timeout periods up to 1.6 seconds. Consider this IC for designs requiring low current consumption and minimal external component count due to the built-in delay circuit. Ensure the system voltage stays within the 1.0V to 6.0V operating range. Verify that the N-channel open-drain output can drive the necessary load for the reset signal.

Supervisors Part Context

This part belongs to the XC6121/XC6122/XC6123/XC6124 series of voltage detectors. The series shares common architectural features including CMOS construction, laser-trimmed thresholds, and watchdog capabilities. Variations within the series differ primarily in detect voltage thresholds, which are fixed in 100mV increments between 1.6V and 5.0V, and package options such as SOT-25 or USP-6.

Supervisors FAQ

How is the watchdog function enabled or disabled on the XC6124C717ER-G?

The watchdog function is controlled via the EN/ENB pin. Setting this pin to a low or high level can disable the watchdog while keeping the voltage detector operational. Since the pin is internally pulled up to VIN, it can be left open when using the watchdog function.

What is the detect voltage threshold for the XC6124C717ER-G?

The detect voltage threshold is internally fixed at 1.7V. This value is set using laser trimming technology during manufacturing and is not adjustable by the user.

Does the XC6124C717ER-G require external components for the release delay?

No, the device does not require external components for the release delay. It incorporates a built-in delay circuit that outputs signals with the specified release delay time automatically.