XC6123F541ER-G

Supervisors Overview

The XC6123F541ER-G is a high-precision voltage detector with an integrated watchdog timer manufactured by Torex Semiconductor. It operates within a supply voltage range of 1.0 V to 6.0 V and features a fixed detection threshold of 4.1 V. The device utilizes CMOS technology to achieve low current consumption, with a typical operating current of 12 µA and static current of 5 µA. It provides a watchdog timeout period of 100 ms and a release delay time of 100 ms. The output configuration is an active-low open-drain or open-collector type. It is housed in a compact 6-USP (1.8x2 mm) surface-mount package and supports an operating temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Integrates a watchdog timer function with the voltage detector for system monitoring
• Features low current consumption suitable for battery-powered applications
• Includes built-in delay circuits eliminating the need for external components
• Provides N-channel open-drain output for flexible interface compatibility

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 threshold voltage matches the required 4.1 V level for the target application. Ensure the active-low output polarity aligns with the connected microcontroller or logic input requirements before finalizing procurement.

Supervisors Selection Notes

Select this component when a combined voltage supervision and watchdog function is required in a minimal footprint. The 4.1 V threshold is appropriate for monitoring standard 5 V or 3.3 V rail variations. Consider the 100 ms timeout and delay settings against the processor's clock speed and initialization time to ensure reliable operation without false resets during normal startup sequences.

Supervisors Part Context

This part belongs to the XC6123 series, which groups high-precision voltage detectors with watchdog functions. The series shares common architectural features such as laser-trimmed detection voltages and internal pull-up/down capabilities on control pins. The XC6123 variant specifically integrates the watchdog timer, distinguishing it from basic voltage detectors like the XC6121 or XC6122 series.

Supervisors FAQ

Can the watchdog function be disabled while the voltage detector remains active?

Yes, the EN/ENB pin allows independent control of the watchdog function. Setting this pin to a specific logic level can turn off the watchdog while keeping the voltage detection operational.

What is the output state when the detected voltage falls below the threshold?

The output goes low (VDFL) when the input voltage drops below the 4.1 V detection threshold, indicating a power fault condition.