XC6123C735ER-G

Supervisors Overview

The XC6123C735ER-G is a high-precision voltage detector with an integrated watchdog timer manufactured by Torex Semiconductor. It operates within a supply voltage range of 1.0V to 6.0V and features a fixed detection threshold of 3.5V. The device utilizes CMOS technology to achieve low current consumption, with a typical operating current of 12µA and standby current of 5µA. It provides a watchdog timeout period of 100ms and a release delay time of 50ms. The output configuration is an N-channel open-drain type that goes active low upon detection. It is housed in a compact 6-USP (1.8x2) surface-mount package and supports an operating temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Integrates a watchdog timer function with internal delay circuits, eliminating the need for external timing components.
• Features an EN/ENB pin that allows independent control to disable the watchdog function while maintaining voltage monitoring operations.
• Employs laser trimming technology to ensure high precision in the fixed detection voltage settings across the series.
• Utilizes a compact USP-6C package design suitable for space-constrained surface-mount applications.

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 suffix ER-G corresponds to the 6-USP package and tape & reel packaging format. Confirm the detection voltage code C735 aligns with the required 3.5V threshold for the target application. Ensure compatibility with the specified operating temperature range and output drive requirements before finalizing procurement specifications.

Supervisors Selection Notes

Select this component when a precise 3.5V monitoring threshold is required alongside automated system reset capabilities via the watchdog input. The open-drain output necessitates an external pull-up resistor for proper logic level interfacing. Consider the 100ms watchdog timeout and 50ms release delay characteristics to ensure they meet the timing constraints of the monitored microcontroller or system logic.

Supervisors Part Context

This part belongs to the XC6121/XC6122/XC6123/XC6124 series of voltage detectors. The XC6123 variant specifically includes the watchdog timer functionality combined with the voltage detection circuit. The series is designed for applications requiring reliable power supervision with minimal external component count and low power consumption profiles.

Supervisors Replacement Considerations

Compatible substitutes within the same family include XC6123C735MR-G, which offers identical electrical specifications but utilizes the SOT-25-5 package instead of the USP-6C form factor. Verify pinout compatibility and thermal performance differences between the two package types during substitution evaluation.