XC6123D426ER-G

Supervisors Overview

The XC6123D426ER-G is a high-precision voltage detector with an integrated watchdog timer manufactured by Torex Semiconductor. It features a CMOS process for low current consumption and includes an ON/OFF control function via the EN/ENB pin. The device monitors a single voltage input with a threshold of 4.2V and provides an active-low reset output. Key electrical parameters include a supply voltage range of 1.0V to 6.0V, a typical operating current of 12µA, and a static current of 5µA. The watchdog timeout period is typically 200ms, with a release delay time of 3.13ms. It operates within a temperature range of -40°C to +85°C and is housed in a 6-USP (1.8x2) surface-mount package.

Supervisors Feature Summary

• Integrates a high-precision voltage detector with a built-in watchdog timer circuit.
• Features an enable/disable pin to independently control the watchdog function while maintaining voltage detection.
• Utilizes laser trimming technology for fixed detection voltage increments without external components.

Supervisors Applications

• Microprocessor system reset circuits
• Power failure detection systems
• Battery backup switching applications

Supervisors Procurement Notes

Verify the specific suffix 'D' indicates the correct watchdog timeout period configuration, as this series offers multiple timing options. Confirm the 'ER-G' designation corresponds to the required tape and reel packaging format and RoHS compliance status. Ensure the 6-USP package dimensions align with the target PCB footprint constraints before finalizing procurement orders.

Supervisors Selection Notes

Select this component when a combined voltage supervision and watchdog timer is required in a minimal footprint. The open-drain output allows for flexible logic level interfacing. Consider the 4.2V threshold specifically for monitoring higher voltage rails compared to lower voltage variants in the same series family.

Supervisors Part Context

This part belongs to the XC6121/XC6122/XC6123/XC6124 series of voltage detectors. The XC6123 variant specifically denotes a model with an externally controllable watchdog enable pin, distinguishing it from models where the watchdog is always active or internally controlled differently.

Supervisors Replacement Considerations

XC6123C426ER-G

Supervisors FAQ

How is the watchdog function disabled?

The watchdog function can be turned off by setting the EN/ENB pin to a low or high level, depending on the specific series configuration, while the voltage detector remains operational.

What is the output type of the reset signal?

The device features an open-drain output that asserts an active-low reset signal upon detecting a voltage drop below the threshold or a watchdog timeout.