XC6122C545ER-G

Supervisors Overview

The XC6122C545ER-G is a high-precision voltage detector with watchdog functionality manufactured by Torex Semiconductor. It operates within a supply voltage range of 1.0 V to 6.0 V and detects input voltages from 1.6 V to 5.0 V in 0.1 V increments. The device features a typical static current of 5 uA and an operating current of 12 uA. It utilizes a USP-6C surface-mount package and provides an N-channel open-drain output. Key electrical parameters include a reset delay time of 50 ms, a power dissipation rating of 120 mW, and a detection voltage temperature coefficient of +100 ppm/°C. The component supports an operating temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Integrates CMOS process technology for low current consumption and high precision voltage monitoring.
• Includes a built-in watchdog timer with selectable timeout periods and release delay times without external components.
• Features an EN/ENB pin that allows independent control of the watchdog function while maintaining voltage detection.

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 threshold voltage code corresponding to the desired detection level, as the series offers fixed internal voltages in 0.1 V steps. Confirm the package variant matches the design requirements, as the XC6122 series is available in both SOT-25-5 and USP-6C configurations. Ensure the selected part number aligns with the required reset delay time and watchdog timeout period specifications for the target application.

Supervisors Selection Notes

Select this component when a single-channel voltage monitor with integrated watchdog capabilities is required. The USP-6C package is suitable for compact surface-mount designs. Consider the 5 uA static current for battery-powered applications. Verify that the 1.0 V minimum operating voltage meets the system's lowest supply rail requirements during operation.

Supervisors Part Context

This part belongs to the XC6121/XC6122/XC6123/XC6124 series of voltage detectors. The XC6122 designation specifically indicates a model with an internally pulled-up EN/ENB pin, allowing the watchdog function to be enabled by leaving the pin open. This distinguishes it from other series members that may have different enable pin configurations or output types.

Supervisors Replacement Considerations

XC6122C545MR-G: Identical electrical specifications and functionality but housed in an SOT-25-5 package instead of USP-6C. Other XC6122 variants with different suffix codes offer different detection voltages or delay times.